186470930SIngo Molnar /* 286470930SIngo Molnar * builtin-top.c 386470930SIngo Molnar * 486470930SIngo Molnar * Builtin top command: Display a continuously updated profile of 586470930SIngo Molnar * any workload, CPU or specific PID. 686470930SIngo Molnar * 786470930SIngo Molnar * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> 8ab81f3fdSArnaldo Carvalho de Melo * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> 986470930SIngo Molnar * 1086470930SIngo Molnar * Improvements and fixes by: 1186470930SIngo Molnar * 1286470930SIngo Molnar * Arjan van de Ven <arjan@linux.intel.com> 1386470930SIngo Molnar * Yanmin Zhang <yanmin.zhang@intel.com> 1486470930SIngo Molnar * Wu Fengguang <fengguang.wu@intel.com> 1586470930SIngo Molnar * Mike Galbraith <efault@gmx.de> 1686470930SIngo Molnar * Paul Mackerras <paulus@samba.org> 1786470930SIngo Molnar * 1886470930SIngo Molnar * Released under the GPL v2. (and only v2, not any later version) 1986470930SIngo Molnar */ 2086470930SIngo Molnar #include "builtin.h" 2186470930SIngo Molnar 2286470930SIngo Molnar #include "perf.h" 2386470930SIngo Molnar 2436532461SArnaldo Carvalho de Melo #include "util/annotate.h" 2541840d21STaeung Song #include "util/config.h" 2686470930SIngo Molnar #include "util/color.h" 27361c99a6SArnaldo Carvalho de Melo #include "util/evlist.h" 2869aad6f1SArnaldo Carvalho de Melo #include "util/evsel.h" 29b0a7d1a0SArnaldo Carvalho de Melo #include "util/machine.h" 30b3165f41SArnaldo Carvalho de Melo #include "util/session.h" 31b3165f41SArnaldo Carvalho de Melo #include "util/symbol.h" 32439d473bSArnaldo Carvalho de Melo #include "util/thread.h" 33fd78260bSArnaldo Carvalho de Melo #include "util/thread_map.h" 348c3e10ebSArnaldo Carvalho de Melo #include "util/top.h" 3586470930SIngo Molnar #include "util/util.h" 3643cbcd8aSArnaldo Carvalho de Melo #include <linux/rbtree.h> 374b6ab94eSJosh Poimboeuf #include <subcmd/parse-options.h> 3886470930SIngo Molnar #include "util/parse-events.h" 39a12b51c4SPaul Mackerras #include "util/cpumap.h" 4069aad6f1SArnaldo Carvalho de Melo #include "util/xyarray.h" 41ab81f3fdSArnaldo Carvalho de Melo #include "util/sort.h" 426b118e92SDavid Ahern #include "util/intlist.h" 43a18b027eSAndi Kleen #include "util/parse-branch-options.h" 440d3942dbSSukadev Bhattiprolu #include "arch/common.h" 4586470930SIngo Molnar 468f28827aSFrederic Weisbecker #include "util/debug.h" 478f28827aSFrederic Weisbecker 4886470930SIngo Molnar #include <assert.h> 4931d68e7bSArnaldo Carvalho de Melo #include <elf.h> 5086470930SIngo Molnar #include <fcntl.h> 5186470930SIngo Molnar 5286470930SIngo Molnar #include <stdio.h> 53923c42c1SMike Galbraith #include <termios.h> 54923c42c1SMike Galbraith #include <unistd.h> 559486aa38SArnaldo Carvalho de Melo #include <inttypes.h> 5686470930SIngo Molnar 5786470930SIngo Molnar #include <errno.h> 5886470930SIngo Molnar #include <time.h> 5986470930SIngo Molnar #include <sched.h> 6086470930SIngo Molnar 6186470930SIngo Molnar #include <sys/syscall.h> 6286470930SIngo Molnar #include <sys/ioctl.h> 63a8fa4960SArnaldo Carvalho de Melo #include <poll.h> 6486470930SIngo Molnar #include <sys/prctl.h> 6586470930SIngo Molnar #include <sys/wait.h> 6686470930SIngo Molnar #include <sys/uio.h> 6731d68e7bSArnaldo Carvalho de Melo #include <sys/utsname.h> 6886470930SIngo Molnar #include <sys/mman.h> 6986470930SIngo Molnar 70531d2410SArnaldo Carvalho de Melo #include <linux/stringify.h> 71b9c4b0f4SArnaldo Carvalho de Melo #include <linux/time64.h> 7286470930SIngo Molnar #include <linux/types.h> 7386470930SIngo Molnar 7411859e82SArnaldo Carvalho de Melo static volatile int done; 7511859e82SArnaldo Carvalho de Melo 76933cbb1cSNamhyung Kim #define HEADER_LINE_NR 5 77933cbb1cSNamhyung Kim 781758af10SArnaldo Carvalho de Melo static void perf_top__update_print_entries(struct perf_top *top) 793b6ed988SArnaldo Carvalho de Melo { 80933cbb1cSNamhyung Kim top->print_entries = top->winsize.ws_row - HEADER_LINE_NR; 813b6ed988SArnaldo Carvalho de Melo } 823b6ed988SArnaldo Carvalho de Melo 831d037ca1SIrina Tirdea static void perf_top__sig_winch(int sig __maybe_unused, 841d037ca1SIrina Tirdea siginfo_t *info __maybe_unused, void *arg) 853b6ed988SArnaldo Carvalho de Melo { 861758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 871758af10SArnaldo Carvalho de Melo 881758af10SArnaldo Carvalho de Melo get_term_dimensions(&top->winsize); 891758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(top); 903b6ed988SArnaldo Carvalho de Melo } 913b6ed988SArnaldo Carvalho de Melo 921758af10SArnaldo Carvalho de Melo static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) 93923c42c1SMike Galbraith { 94923c42c1SMike Galbraith struct symbol *sym; 95ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 96439d473bSArnaldo Carvalho de Melo struct map *map; 9736532461SArnaldo Carvalho de Melo int err = -1; 98923c42c1SMike Galbraith 99ab81f3fdSArnaldo Carvalho de Melo if (!he || !he->ms.sym) 100b0a9ab62SArnaldo Carvalho de Melo return -1; 101b0a9ab62SArnaldo Carvalho de Melo 102ab81f3fdSArnaldo Carvalho de Melo sym = he->ms.sym; 103ab81f3fdSArnaldo Carvalho de Melo map = he->ms.map; 104b0a9ab62SArnaldo Carvalho de Melo 105b0a9ab62SArnaldo Carvalho de Melo /* 106b0a9ab62SArnaldo Carvalho de Melo * We can't annotate with just /proc/kallsyms 107b0a9ab62SArnaldo Carvalho de Melo */ 108bbb7f846SAdrian Hunter if (map->dso->symtab_type == DSO_BINARY_TYPE__KALLSYMS && 109bbb7f846SAdrian Hunter !dso__is_kcore(map->dso)) { 110ce6f4fabSArnaldo Carvalho de Melo pr_err("Can't annotate %s: No vmlinux file was found in the " 111ce6f4fabSArnaldo Carvalho de Melo "path\n", sym->name); 112ce6f4fabSArnaldo Carvalho de Melo sleep(1); 113b0a9ab62SArnaldo Carvalho de Melo return -1; 114b269876cSArnaldo Carvalho de Melo } 115b269876cSArnaldo Carvalho de Melo 116ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 117ce6f4fabSArnaldo Carvalho de Melo if (notes->src != NULL) { 118ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 119923c42c1SMike Galbraith goto out_assign; 120923c42c1SMike Galbraith } 121923c42c1SMike Galbraith 122ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 123923c42c1SMike Galbraith 124d04b35f8SArnaldo Carvalho de Melo if (symbol__alloc_hist(sym) < 0) { 125c97cf422SArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 12636532461SArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 12736532461SArnaldo Carvalho de Melo sym->name); 128ce6f4fabSArnaldo Carvalho de Melo sleep(1); 129c97cf422SArnaldo Carvalho de Melo return err; 130923c42c1SMike Galbraith } 13136532461SArnaldo Carvalho de Melo 1325cb725a9SArnaldo Carvalho de Melo err = symbol__disassemble(sym, map, 0); 13336532461SArnaldo Carvalho de Melo if (err == 0) { 134923c42c1SMike Galbraith out_assign: 1351758af10SArnaldo Carvalho de Melo top->sym_filter_entry = he; 136ee51d851SArnaldo Carvalho de Melo } else { 137ee51d851SArnaldo Carvalho de Melo char msg[BUFSIZ]; 138ee51d851SArnaldo Carvalho de Melo symbol__strerror_disassemble(sym, map, err, msg, sizeof(msg)); 139ee51d851SArnaldo Carvalho de Melo pr_err("Couldn't annotate %s: %s\n", sym->name, msg); 14036532461SArnaldo Carvalho de Melo } 141c97cf422SArnaldo Carvalho de Melo 142ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 14336532461SArnaldo Carvalho de Melo return err; 144923c42c1SMike Galbraith } 145923c42c1SMike Galbraith 146ab81f3fdSArnaldo Carvalho de Melo static void __zero_source_counters(struct hist_entry *he) 147923c42c1SMike Galbraith { 148ab81f3fdSArnaldo Carvalho de Melo struct symbol *sym = he->ms.sym; 14936532461SArnaldo Carvalho de Melo symbol__annotate_zero_histograms(sym); 150923c42c1SMike Galbraith } 151923c42c1SMike Galbraith 15231d68e7bSArnaldo Carvalho de Melo static void ui__warn_map_erange(struct map *map, struct symbol *sym, u64 ip) 15331d68e7bSArnaldo Carvalho de Melo { 15431d68e7bSArnaldo Carvalho de Melo struct utsname uts; 15531d68e7bSArnaldo Carvalho de Melo int err = uname(&uts); 15631d68e7bSArnaldo Carvalho de Melo 15731d68e7bSArnaldo Carvalho de Melo ui__warning("Out of bounds address found:\n\n" 15831d68e7bSArnaldo Carvalho de Melo "Addr: %" PRIx64 "\n" 15931d68e7bSArnaldo Carvalho de Melo "DSO: %s %c\n" 16031d68e7bSArnaldo Carvalho de Melo "Map: %" PRIx64 "-%" PRIx64 "\n" 16131d68e7bSArnaldo Carvalho de Melo "Symbol: %" PRIx64 "-%" PRIx64 " %c %s\n" 16231d68e7bSArnaldo Carvalho de Melo "Arch: %s\n" 16331d68e7bSArnaldo Carvalho de Melo "Kernel: %s\n" 16431d68e7bSArnaldo Carvalho de Melo "Tools: %s\n\n" 16531d68e7bSArnaldo Carvalho de Melo "Not all samples will be on the annotation output.\n\n" 16631d68e7bSArnaldo Carvalho de Melo "Please report to linux-kernel@vger.kernel.org\n", 16731d68e7bSArnaldo Carvalho de Melo ip, map->dso->long_name, dso__symtab_origin(map->dso), 16831d68e7bSArnaldo Carvalho de Melo map->start, map->end, sym->start, sym->end, 16931d68e7bSArnaldo Carvalho de Melo sym->binding == STB_GLOBAL ? 'g' : 17031d68e7bSArnaldo Carvalho de Melo sym->binding == STB_LOCAL ? 'l' : 'w', sym->name, 17131d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.machine, 17231d68e7bSArnaldo Carvalho de Melo err ? "[unknown]" : uts.release, perf_version_string); 17331d68e7bSArnaldo Carvalho de Melo if (use_browser <= 0) 17431d68e7bSArnaldo Carvalho de Melo sleep(5); 17531d68e7bSArnaldo Carvalho de Melo 17631d68e7bSArnaldo Carvalho de Melo map->erange_warned = true; 17731d68e7bSArnaldo Carvalho de Melo } 17831d68e7bSArnaldo Carvalho de Melo 1791758af10SArnaldo Carvalho de Melo static void perf_top__record_precise_ip(struct perf_top *top, 1801758af10SArnaldo Carvalho de Melo struct hist_entry *he, 1811758af10SArnaldo Carvalho de Melo int counter, u64 ip) 182923c42c1SMike Galbraith { 183ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 184beefb8d0SNamhyung Kim struct symbol *sym = he->ms.sym; 18548c65bdaSNamhyung Kim int err = 0; 186ce6f4fabSArnaldo Carvalho de Melo 187beefb8d0SNamhyung Kim if (sym == NULL || (use_browser == 0 && 188beefb8d0SNamhyung Kim (top->sym_filter_entry == NULL || 189beefb8d0SNamhyung Kim top->sym_filter_entry->ms.sym != sym))) 190923c42c1SMike Galbraith return; 191923c42c1SMike Galbraith 192ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(sym); 193ce6f4fabSArnaldo Carvalho de Melo 194ce6f4fabSArnaldo Carvalho de Melo if (pthread_mutex_trylock(¬es->lock)) 195923c42c1SMike Galbraith return; 196923c42c1SMike Galbraith 197618afb29SArnaldo Carvalho de Melo err = hist_entry__inc_addr_samples(he, counter, ip); 198923c42c1SMike Galbraith 199ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 20031d68e7bSArnaldo Carvalho de Melo 201151ee834SNamhyung Kim if (unlikely(err)) { 2027c50391fSNamhyung Kim /* 2037c50391fSNamhyung Kim * This function is now called with he->hists->lock held. 2047c50391fSNamhyung Kim * Release it before going to sleep. 2057c50391fSNamhyung Kim */ 2067c50391fSNamhyung Kim pthread_mutex_unlock(&he->hists->lock); 2077c50391fSNamhyung Kim 20831d68e7bSArnaldo Carvalho de Melo if (err == -ERANGE && !he->ms.map->erange_warned) 20931d68e7bSArnaldo Carvalho de Melo ui__warn_map_erange(he->ms.map, sym, ip); 210b66d8c0cSArnaldo Carvalho de Melo else if (err == -ENOMEM) { 211b66d8c0cSArnaldo Carvalho de Melo pr_err("Not enough memory for annotating '%s' symbol!\n", 212b66d8c0cSArnaldo Carvalho de Melo sym->name); 213b66d8c0cSArnaldo Carvalho de Melo sleep(1); 214b66d8c0cSArnaldo Carvalho de Melo } 2157c50391fSNamhyung Kim 2167c50391fSNamhyung Kim pthread_mutex_lock(&he->hists->lock); 217923c42c1SMike Galbraith } 218151ee834SNamhyung Kim } 219923c42c1SMike Galbraith 2201758af10SArnaldo Carvalho de Melo static void perf_top__show_details(struct perf_top *top) 221923c42c1SMike Galbraith { 2221758af10SArnaldo Carvalho de Melo struct hist_entry *he = top->sym_filter_entry; 223ce6f4fabSArnaldo Carvalho de Melo struct annotation *notes; 224923c42c1SMike Galbraith struct symbol *symbol; 22536532461SArnaldo Carvalho de Melo int more; 226923c42c1SMike Galbraith 227ab81f3fdSArnaldo Carvalho de Melo if (!he) 228923c42c1SMike Galbraith return; 229923c42c1SMike Galbraith 230ab81f3fdSArnaldo Carvalho de Melo symbol = he->ms.sym; 231ce6f4fabSArnaldo Carvalho de Melo notes = symbol__annotation(symbol); 232ce6f4fabSArnaldo Carvalho de Melo 233ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_lock(¬es->lock); 234ce6f4fabSArnaldo Carvalho de Melo 235ce6f4fabSArnaldo Carvalho de Melo if (notes->src == NULL) 236ce6f4fabSArnaldo Carvalho de Melo goto out_unlock; 237923c42c1SMike Galbraith 2387289f83cSArnaldo Carvalho de Melo printf("Showing %s for %s\n", perf_evsel__name(top->sym_evsel), symbol->name); 2391758af10SArnaldo Carvalho de Melo printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); 240923c42c1SMike Galbraith 241db8fd07aSNamhyung Kim more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel, 2421758af10SArnaldo Carvalho de Melo 0, top->sym_pcnt_filter, top->print_entries, 4); 2435d484f99SArnaldo Carvalho de Melo 2445d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 2451758af10SArnaldo Carvalho de Melo if (top->zero) 2461758af10SArnaldo Carvalho de Melo symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); 24736532461SArnaldo Carvalho de Melo else 2481758af10SArnaldo Carvalho de Melo symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); 2495d484f99SArnaldo Carvalho de Melo } 25036532461SArnaldo Carvalho de Melo if (more != 0) 251923c42c1SMike Galbraith printf("%d lines not displayed, maybe increase display entries [e]\n", more); 252ce6f4fabSArnaldo Carvalho de Melo out_unlock: 253ce6f4fabSArnaldo Carvalho de Melo pthread_mutex_unlock(¬es->lock); 254923c42c1SMike Galbraith } 25586470930SIngo Molnar 2561758af10SArnaldo Carvalho de Melo static void perf_top__print_sym_table(struct perf_top *top) 25786470930SIngo Molnar { 2588c3e10ebSArnaldo Carvalho de Melo char bf[160]; 2598c3e10ebSArnaldo Carvalho de Melo int printed = 0; 2601758af10SArnaldo Carvalho de Melo const int win_width = top->winsize.ws_col - 1; 261452ce03bSJiri Olsa struct perf_evsel *evsel = top->sym_evsel; 262452ce03bSJiri Olsa struct hists *hists = evsel__hists(evsel); 26386470930SIngo Molnar 26486470930SIngo Molnar puts(CONSOLE_CLEAR); 26586470930SIngo Molnar 2661758af10SArnaldo Carvalho de Melo perf_top__header_snprintf(top, bf, sizeof(bf)); 2678c3e10ebSArnaldo Carvalho de Melo printf("%s\n", bf); 26886470930SIngo Molnar 2691758af10SArnaldo Carvalho de Melo perf_top__reset_sample_counters(top); 27086470930SIngo Molnar 2711a105f74SArnaldo Carvalho de Melo printf("%-*.*s\n", win_width, win_width, graph_dotted_line); 27286470930SIngo Molnar 2734ea062edSArnaldo Carvalho de Melo if (hists->stats.nr_lost_warned != 2744ea062edSArnaldo Carvalho de Melo hists->stats.nr_events[PERF_RECORD_LOST]) { 2754ea062edSArnaldo Carvalho de Melo hists->stats.nr_lost_warned = 2764ea062edSArnaldo Carvalho de Melo hists->stats.nr_events[PERF_RECORD_LOST]; 2777b27509fSArnaldo Carvalho de Melo color_fprintf(stdout, PERF_COLOR_RED, 2787b27509fSArnaldo Carvalho de Melo "WARNING: LOST %d chunks, Check IO/CPU overload", 2794ea062edSArnaldo Carvalho de Melo hists->stats.nr_lost_warned); 280ab81f3fdSArnaldo Carvalho de Melo ++printed; 28193fc64f1SArnaldo Carvalho de Melo } 28293fc64f1SArnaldo Carvalho de Melo 2831758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 2841758af10SArnaldo Carvalho de Melo perf_top__show_details(top); 285923c42c1SMike Galbraith return; 286923c42c1SMike Galbraith } 287923c42c1SMike Galbraith 2885d484f99SArnaldo Carvalho de Melo if (top->evlist->enabled) { 289701937bdSNamhyung Kim if (top->zero) { 2904ea062edSArnaldo Carvalho de Melo hists__delete_entries(hists); 291701937bdSNamhyung Kim } else { 2924ea062edSArnaldo Carvalho de Melo hists__decay_entries(hists, top->hide_user_symbols, 2931758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols); 294701937bdSNamhyung Kim } 2955d484f99SArnaldo Carvalho de Melo } 296701937bdSNamhyung Kim 2974ea062edSArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 298452ce03bSJiri Olsa perf_evsel__output_resort(evsel, NULL); 299701937bdSNamhyung Kim 3004ea062edSArnaldo Carvalho de Melo hists__output_recalc_col_len(hists, top->print_entries - printed); 3011a105f74SArnaldo Carvalho de Melo putchar('\n'); 3024ea062edSArnaldo Carvalho de Melo hists__fprintf(hists, false, top->print_entries - printed, win_width, 303d05e3aaeSJiri Olsa top->min_percent, stdout, symbol_conf.use_callchain); 30486470930SIngo Molnar } 30586470930SIngo Molnar 306923c42c1SMike Galbraith static void prompt_integer(int *target, const char *msg) 307923c42c1SMike Galbraith { 308923c42c1SMike Galbraith char *buf = malloc(0), *p; 309923c42c1SMike Galbraith size_t dummy = 0; 310923c42c1SMike Galbraith int tmp; 311923c42c1SMike Galbraith 312923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 313923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 314923c42c1SMike Galbraith return; 315923c42c1SMike Galbraith 316923c42c1SMike Galbraith p = strchr(buf, '\n'); 317923c42c1SMike Galbraith if (p) 318923c42c1SMike Galbraith *p = 0; 319923c42c1SMike Galbraith 320923c42c1SMike Galbraith p = buf; 321923c42c1SMike Galbraith while(*p) { 322923c42c1SMike Galbraith if (!isdigit(*p)) 323923c42c1SMike Galbraith goto out_free; 324923c42c1SMike Galbraith p++; 325923c42c1SMike Galbraith } 326923c42c1SMike Galbraith tmp = strtoul(buf, NULL, 10); 327923c42c1SMike Galbraith *target = tmp; 328923c42c1SMike Galbraith out_free: 329923c42c1SMike Galbraith free(buf); 330923c42c1SMike Galbraith } 331923c42c1SMike Galbraith 332923c42c1SMike Galbraith static void prompt_percent(int *target, const char *msg) 333923c42c1SMike Galbraith { 334923c42c1SMike Galbraith int tmp = 0; 335923c42c1SMike Galbraith 336923c42c1SMike Galbraith prompt_integer(&tmp, msg); 337923c42c1SMike Galbraith if (tmp >= 0 && tmp <= 100) 338923c42c1SMike Galbraith *target = tmp; 339923c42c1SMike Galbraith } 340923c42c1SMike Galbraith 3411758af10SArnaldo Carvalho de Melo static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) 342923c42c1SMike Galbraith { 343923c42c1SMike Galbraith char *buf = malloc(0), *p; 3441758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; 3454ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(top->sym_evsel); 346ab81f3fdSArnaldo Carvalho de Melo struct rb_node *next; 347923c42c1SMike Galbraith size_t dummy = 0; 348923c42c1SMike Galbraith 349923c42c1SMike Galbraith /* zero counters of active symbol */ 350923c42c1SMike Galbraith if (syme) { 351923c42c1SMike Galbraith __zero_source_counters(syme); 3521758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 353923c42c1SMike Galbraith } 354923c42c1SMike Galbraith 355923c42c1SMike Galbraith fprintf(stdout, "\n%s: ", msg); 356923c42c1SMike Galbraith if (getline(&buf, &dummy, stdin) < 0) 357923c42c1SMike Galbraith goto out_free; 358923c42c1SMike Galbraith 359923c42c1SMike Galbraith p = strchr(buf, '\n'); 360923c42c1SMike Galbraith if (p) 361923c42c1SMike Galbraith *p = 0; 362923c42c1SMike Galbraith 3634ea062edSArnaldo Carvalho de Melo next = rb_first(&hists->entries); 364ab81f3fdSArnaldo Carvalho de Melo while (next) { 365ab81f3fdSArnaldo Carvalho de Melo n = rb_entry(next, struct hist_entry, rb_node); 366ab81f3fdSArnaldo Carvalho de Melo if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { 367ab81f3fdSArnaldo Carvalho de Melo found = n; 368923c42c1SMike Galbraith break; 369923c42c1SMike Galbraith } 370ab81f3fdSArnaldo Carvalho de Melo next = rb_next(&n->rb_node); 371923c42c1SMike Galbraith } 372923c42c1SMike Galbraith 373923c42c1SMike Galbraith if (!found) { 37466aeb6d5SKirill Smelkov fprintf(stderr, "Sorry, %s is not active.\n", buf); 375923c42c1SMike Galbraith sleep(1); 376923c42c1SMike Galbraith } else 3771758af10SArnaldo Carvalho de Melo perf_top__parse_source(top, found); 378923c42c1SMike Galbraith 379923c42c1SMike Galbraith out_free: 380923c42c1SMike Galbraith free(buf); 381923c42c1SMike Galbraith } 382923c42c1SMike Galbraith 3831758af10SArnaldo Carvalho de Melo static void perf_top__print_mapped_keys(struct perf_top *top) 384923c42c1SMike Galbraith { 385091bd2e9SMike Galbraith char *name = NULL; 386091bd2e9SMike Galbraith 3871758af10SArnaldo Carvalho de Melo if (top->sym_filter_entry) { 3881758af10SArnaldo Carvalho de Melo struct symbol *sym = top->sym_filter_entry->ms.sym; 389091bd2e9SMike Galbraith name = sym->name; 390091bd2e9SMike Galbraith } 391091bd2e9SMike Galbraith 392091bd2e9SMike Galbraith fprintf(stdout, "\nMapped keys:\n"); 3931758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); 3941758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); 395091bd2e9SMike Galbraith 3961758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) 3977289f83cSArnaldo Carvalho de Melo fprintf(stdout, "\t[E] active event counter. \t(%s)\n", perf_evsel__name(top->sym_evsel)); 398091bd2e9SMike Galbraith 3991758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); 400091bd2e9SMike Galbraith 4011758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); 402091bd2e9SMike Galbraith fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); 403091bd2e9SMike Galbraith fprintf(stdout, "\t[S] stop annotation.\n"); 404091bd2e9SMike Galbraith 4058ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4068ffcda17SArnaldo Carvalho de Melo "\t[K] hide kernel_symbols symbols. \t(%s)\n", 4071758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols ? "yes" : "no"); 4088ffcda17SArnaldo Carvalho de Melo fprintf(stdout, 4098ffcda17SArnaldo Carvalho de Melo "\t[U] hide user symbols. \t(%s)\n", 4101758af10SArnaldo Carvalho de Melo top->hide_user_symbols ? "yes" : "no"); 4111758af10SArnaldo Carvalho de Melo fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); 412091bd2e9SMike Galbraith fprintf(stdout, "\t[qQ] quit.\n"); 413091bd2e9SMike Galbraith } 414091bd2e9SMike Galbraith 4151758af10SArnaldo Carvalho de Melo static int perf_top__key_mapped(struct perf_top *top, int c) 416091bd2e9SMike Galbraith { 417091bd2e9SMike Galbraith switch (c) { 418091bd2e9SMike Galbraith case 'd': 419091bd2e9SMike Galbraith case 'e': 420091bd2e9SMike Galbraith case 'f': 421091bd2e9SMike Galbraith case 'z': 422091bd2e9SMike Galbraith case 'q': 423091bd2e9SMike Galbraith case 'Q': 4248ffcda17SArnaldo Carvalho de Melo case 'K': 4258ffcda17SArnaldo Carvalho de Melo case 'U': 4266cff0e8dSKirill Smelkov case 'F': 4276cff0e8dSKirill Smelkov case 's': 4286cff0e8dSKirill Smelkov case 'S': 429091bd2e9SMike Galbraith return 1; 430091bd2e9SMike Galbraith case 'E': 4311758af10SArnaldo Carvalho de Melo return top->evlist->nr_entries > 1 ? 1 : 0; 43283a0944fSIngo Molnar default: 43383a0944fSIngo Molnar break; 434091bd2e9SMike Galbraith } 435091bd2e9SMike Galbraith 436091bd2e9SMike Galbraith return 0; 437923c42c1SMike Galbraith } 438923c42c1SMike Galbraith 43911859e82SArnaldo Carvalho de Melo static bool perf_top__handle_keypress(struct perf_top *top, int c) 440923c42c1SMike Galbraith { 44111859e82SArnaldo Carvalho de Melo bool ret = true; 44211859e82SArnaldo Carvalho de Melo 4431758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) { 444091bd2e9SMike Galbraith struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 4453969cc09SJiri Olsa struct termios save; 446091bd2e9SMike Galbraith 4471758af10SArnaldo Carvalho de Melo perf_top__print_mapped_keys(top); 448091bd2e9SMike Galbraith fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); 449091bd2e9SMike Galbraith fflush(stdout); 450091bd2e9SMike Galbraith 4513969cc09SJiri Olsa set_term_quiet_input(&save); 452091bd2e9SMike Galbraith 453091bd2e9SMike Galbraith poll(&stdin_poll, 1, -1); 454091bd2e9SMike Galbraith c = getc(stdin); 455091bd2e9SMike Galbraith 456091bd2e9SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 4571758af10SArnaldo Carvalho de Melo if (!perf_top__key_mapped(top, c)) 45811859e82SArnaldo Carvalho de Melo return ret; 459091bd2e9SMike Galbraith } 460091bd2e9SMike Galbraith 461923c42c1SMike Galbraith switch (c) { 462923c42c1SMike Galbraith case 'd': 4631758af10SArnaldo Carvalho de Melo prompt_integer(&top->delay_secs, "Enter display delay"); 4641758af10SArnaldo Carvalho de Melo if (top->delay_secs < 1) 4651758af10SArnaldo Carvalho de Melo top->delay_secs = 1; 466923c42c1SMike Galbraith break; 467923c42c1SMike Galbraith case 'e': 4681758af10SArnaldo Carvalho de Melo prompt_integer(&top->print_entries, "Enter display entries (lines)"); 4691758af10SArnaldo Carvalho de Melo if (top->print_entries == 0) { 4701758af10SArnaldo Carvalho de Melo struct sigaction act = { 4711758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 4721758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 4731758af10SArnaldo Carvalho de Melo }; 4741758af10SArnaldo Carvalho de Melo perf_top__sig_winch(SIGWINCH, NULL, top); 4751758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 476509605dbSStephane Eranian } else { 4773b6ed988SArnaldo Carvalho de Melo signal(SIGWINCH, SIG_DFL); 478509605dbSStephane Eranian } 479923c42c1SMike Galbraith break; 480923c42c1SMike Galbraith case 'E': 4811758af10SArnaldo Carvalho de Melo if (top->evlist->nr_entries > 1) { 482ce2d17caSAkihiro Nagai /* Select 0 as the default event: */ 483ce2d17caSAkihiro Nagai int counter = 0; 484ce2d17caSAkihiro Nagai 485923c42c1SMike Galbraith fprintf(stderr, "\nAvailable events:"); 48669aad6f1SArnaldo Carvalho de Melo 487e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 4887289f83cSArnaldo Carvalho de Melo fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, perf_evsel__name(top->sym_evsel)); 489923c42c1SMike Galbraith 490ec52d976SArnaldo Carvalho de Melo prompt_integer(&counter, "Enter details event counter"); 491923c42c1SMike Galbraith 4921758af10SArnaldo Carvalho de Melo if (counter >= top->evlist->nr_entries) { 4930c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 4947289f83cSArnaldo Carvalho de Melo fprintf(stderr, "Sorry, no such event, using %s.\n", perf_evsel__name(top->sym_evsel)); 495923c42c1SMike Galbraith sleep(1); 49669aad6f1SArnaldo Carvalho de Melo break; 497923c42c1SMike Galbraith } 498e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, top->sym_evsel) 4991758af10SArnaldo Carvalho de Melo if (top->sym_evsel->idx == counter) 50069aad6f1SArnaldo Carvalho de Melo break; 501ec52d976SArnaldo Carvalho de Melo } else 5020c21f736SArnaldo Carvalho de Melo top->sym_evsel = perf_evlist__first(top->evlist); 503923c42c1SMike Galbraith break; 504923c42c1SMike Galbraith case 'f': 5051758af10SArnaldo Carvalho de Melo prompt_integer(&top->count_filter, "Enter display event count filter"); 506923c42c1SMike Galbraith break; 507923c42c1SMike Galbraith case 'F': 5081758af10SArnaldo Carvalho de Melo prompt_percent(&top->sym_pcnt_filter, 5091758af10SArnaldo Carvalho de Melo "Enter details display event filter (percent)"); 510923c42c1SMike Galbraith break; 5118ffcda17SArnaldo Carvalho de Melo case 'K': 5121758af10SArnaldo Carvalho de Melo top->hide_kernel_symbols = !top->hide_kernel_symbols; 5138ffcda17SArnaldo Carvalho de Melo break; 514923c42c1SMike Galbraith case 'q': 515923c42c1SMike Galbraith case 'Q': 516923c42c1SMike Galbraith printf("exiting.\n"); 5171758af10SArnaldo Carvalho de Melo if (top->dump_symtab) 5181758af10SArnaldo Carvalho de Melo perf_session__fprintf_dsos(top->session, stderr); 51911859e82SArnaldo Carvalho de Melo ret = false; 52011859e82SArnaldo Carvalho de Melo break; 521923c42c1SMike Galbraith case 's': 5221758af10SArnaldo Carvalho de Melo perf_top__prompt_symbol(top, "Enter details symbol"); 523923c42c1SMike Galbraith break; 524923c42c1SMike Galbraith case 'S': 5251758af10SArnaldo Carvalho de Melo if (!top->sym_filter_entry) 526923c42c1SMike Galbraith break; 527923c42c1SMike Galbraith else { 5281758af10SArnaldo Carvalho de Melo struct hist_entry *syme = top->sym_filter_entry; 529923c42c1SMike Galbraith 5301758af10SArnaldo Carvalho de Melo top->sym_filter_entry = NULL; 531923c42c1SMike Galbraith __zero_source_counters(syme); 532923c42c1SMike Galbraith } 533923c42c1SMike Galbraith break; 5348ffcda17SArnaldo Carvalho de Melo case 'U': 5351758af10SArnaldo Carvalho de Melo top->hide_user_symbols = !top->hide_user_symbols; 5368ffcda17SArnaldo Carvalho de Melo break; 537923c42c1SMike Galbraith case 'z': 5381758af10SArnaldo Carvalho de Melo top->zero = !top->zero; 539923c42c1SMike Galbraith break; 54083a0944fSIngo Molnar default: 54183a0944fSIngo Molnar break; 542923c42c1SMike Galbraith } 54311859e82SArnaldo Carvalho de Melo 54411859e82SArnaldo Carvalho de Melo return ret; 545923c42c1SMike Galbraith } 546923c42c1SMike Galbraith 547ab81f3fdSArnaldo Carvalho de Melo static void perf_top__sort_new_samples(void *arg) 548ab81f3fdSArnaldo Carvalho de Melo { 549ab81f3fdSArnaldo Carvalho de Melo struct perf_top *t = arg; 550452ce03bSJiri Olsa struct perf_evsel *evsel = t->sym_evsel; 5514ea062edSArnaldo Carvalho de Melo struct hists *hists; 5524ea062edSArnaldo Carvalho de Melo 553ab81f3fdSArnaldo Carvalho de Melo perf_top__reset_sample_counters(t); 554ab81f3fdSArnaldo Carvalho de Melo 555ab81f3fdSArnaldo Carvalho de Melo if (t->evlist->selected != NULL) 556ab81f3fdSArnaldo Carvalho de Melo t->sym_evsel = t->evlist->selected; 557ab81f3fdSArnaldo Carvalho de Melo 558452ce03bSJiri Olsa hists = evsel__hists(evsel); 5594ea062edSArnaldo Carvalho de Melo 5605d484f99SArnaldo Carvalho de Melo if (t->evlist->enabled) { 561701937bdSNamhyung Kim if (t->zero) { 5624ea062edSArnaldo Carvalho de Melo hists__delete_entries(hists); 563701937bdSNamhyung Kim } else { 5644ea062edSArnaldo Carvalho de Melo hists__decay_entries(hists, t->hide_user_symbols, 5651758af10SArnaldo Carvalho de Melo t->hide_kernel_symbols); 566ab81f3fdSArnaldo Carvalho de Melo } 5675d484f99SArnaldo Carvalho de Melo } 568ab81f3fdSArnaldo Carvalho de Melo 5694ea062edSArnaldo Carvalho de Melo hists__collapse_resort(hists, NULL); 570452ce03bSJiri Olsa perf_evsel__output_resort(evsel, NULL); 571701937bdSNamhyung Kim } 572701937bdSNamhyung Kim 5731758af10SArnaldo Carvalho de Melo static void *display_thread_tui(void *arg) 574c0443df1SArnaldo Carvalho de Melo { 5750d37aa34SArnaldo Carvalho de Melo struct perf_evsel *pos; 5761758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 577ab81f3fdSArnaldo Carvalho de Melo const char *help = "For a higher level overview, try: perf top --sort comm,dso"; 5789783adf7SNamhyung Kim struct hist_browser_timer hbt = { 5799783adf7SNamhyung Kim .timer = perf_top__sort_new_samples, 5809783adf7SNamhyung Kim .arg = top, 5819783adf7SNamhyung Kim .refresh = top->delay_secs, 5829783adf7SNamhyung Kim }; 583ab81f3fdSArnaldo Carvalho de Melo 5841758af10SArnaldo Carvalho de Melo perf_top__sort_new_samples(top); 5850d37aa34SArnaldo Carvalho de Melo 5860d37aa34SArnaldo Carvalho de Melo /* 5870d37aa34SArnaldo Carvalho de Melo * Initialize the uid_filter_str, in the future the TUI will allow 5880d37aa34SArnaldo Carvalho de Melo * Zooming in/out UIDs. For now juse use whatever the user passed 5890d37aa34SArnaldo Carvalho de Melo * via --uid. 5900d37aa34SArnaldo Carvalho de Melo */ 591e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(top->evlist, pos) { 5924ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(pos); 5934ea062edSArnaldo Carvalho de Melo hists->uid_filter_str = top->record_opts.target.uid_str; 5944ea062edSArnaldo Carvalho de Melo } 5950d37aa34SArnaldo Carvalho de Melo 59613d1e536SNamhyung Kim perf_evlist__tui_browse_hists(top->evlist, help, &hbt, 5975d484f99SArnaldo Carvalho de Melo top->min_percent, 59868d80758SNamhyung Kim &top->session->header.env); 599ab81f3fdSArnaldo Carvalho de Melo 60011859e82SArnaldo Carvalho de Melo done = 1; 601c0443df1SArnaldo Carvalho de Melo return NULL; 602c0443df1SArnaldo Carvalho de Melo } 603c0443df1SArnaldo Carvalho de Melo 6044a1a9971SJiri Olsa static void display_sig(int sig __maybe_unused) 6054a1a9971SJiri Olsa { 6064a1a9971SJiri Olsa done = 1; 6074a1a9971SJiri Olsa } 6084a1a9971SJiri Olsa 6094a1a9971SJiri Olsa static void display_setup_sig(void) 6104a1a9971SJiri Olsa { 61109f4d78aSArnaldo Carvalho de Melo signal(SIGSEGV, sighandler_dump_stack); 61209f4d78aSArnaldo Carvalho de Melo signal(SIGFPE, sighandler_dump_stack); 6134a1a9971SJiri Olsa signal(SIGINT, display_sig); 6144a1a9971SJiri Olsa signal(SIGQUIT, display_sig); 6154a1a9971SJiri Olsa signal(SIGTERM, display_sig); 6164a1a9971SJiri Olsa } 6174a1a9971SJiri Olsa 6181758af10SArnaldo Carvalho de Melo static void *display_thread(void *arg) 61986470930SIngo Molnar { 62086470930SIngo Molnar struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; 6219398c484SJiri Olsa struct termios save; 6221758af10SArnaldo Carvalho de Melo struct perf_top *top = arg; 623923c42c1SMike Galbraith int delay_msecs, c; 62486470930SIngo Molnar 6254a1a9971SJiri Olsa display_setup_sig(); 6263af6e338SArnaldo Carvalho de Melo pthread__unblock_sigwinch(); 627923c42c1SMike Galbraith repeat: 628b9c4b0f4SArnaldo Carvalho de Melo delay_msecs = top->delay_secs * MSEC_PER_SEC; 6299398c484SJiri Olsa set_term_quiet_input(&save); 630923c42c1SMike Galbraith /* trash return*/ 631923c42c1SMike Galbraith getc(stdin); 63286470930SIngo Molnar 63311859e82SArnaldo Carvalho de Melo while (!done) { 6341758af10SArnaldo Carvalho de Melo perf_top__print_sym_table(top); 6353af6e338SArnaldo Carvalho de Melo /* 6363af6e338SArnaldo Carvalho de Melo * Either timeout expired or we got an EINTR due to SIGWINCH, 6373af6e338SArnaldo Carvalho de Melo * refresh screen in both cases. 6383af6e338SArnaldo Carvalho de Melo */ 6393af6e338SArnaldo Carvalho de Melo switch (poll(&stdin_poll, 1, delay_msecs)) { 6403af6e338SArnaldo Carvalho de Melo case 0: 6413af6e338SArnaldo Carvalho de Melo continue; 6423af6e338SArnaldo Carvalho de Melo case -1: 6433af6e338SArnaldo Carvalho de Melo if (errno == EINTR) 6443af6e338SArnaldo Carvalho de Melo continue; 6453af6e338SArnaldo Carvalho de Melo /* Fall trhu */ 6463af6e338SArnaldo Carvalho de Melo default: 647923c42c1SMike Galbraith c = getc(stdin); 648923c42c1SMike Galbraith tcsetattr(0, TCSAFLUSH, &save); 649923c42c1SMike Galbraith 65011859e82SArnaldo Carvalho de Melo if (perf_top__handle_keypress(top, c)) 651923c42c1SMike Galbraith goto repeat; 65211859e82SArnaldo Carvalho de Melo done = 1; 65311859e82SArnaldo Carvalho de Melo } 65411859e82SArnaldo Carvalho de Melo } 65586470930SIngo Molnar 6564a1a9971SJiri Olsa tcsetattr(0, TCSAFLUSH, &save); 65786470930SIngo Molnar return NULL; 65886470930SIngo Molnar } 65986470930SIngo Molnar 660e7110b9fSArnaldo Carvalho de Melo static int symbol_filter(struct map *map, struct symbol *sym) 66186470930SIngo Molnar { 66286470930SIngo Molnar const char *name = sym->name; 66386470930SIngo Molnar 664cfc5acd4SArnaldo Carvalho de Melo if (!__map__is_kernel(map)) 665e7110b9fSArnaldo Carvalho de Melo return 0; 6663a3393efSAnton Blanchard /* 6673a3393efSAnton Blanchard * ppc64 uses function descriptors and appends a '.' to the 6683a3393efSAnton Blanchard * start of every instruction address. Remove it. 6693a3393efSAnton Blanchard */ 6703a3393efSAnton Blanchard if (name[0] == '.') 6713a3393efSAnton Blanchard name++; 6723a3393efSAnton Blanchard 67386470930SIngo Molnar if (!strcmp(name, "_text") || 67486470930SIngo Molnar !strcmp(name, "_etext") || 67586470930SIngo Molnar !strcmp(name, "_sinittext") || 67686470930SIngo Molnar !strncmp("init_module", name, 11) || 67786470930SIngo Molnar !strncmp("cleanup_module", name, 14) || 67886470930SIngo Molnar strstr(name, "_text_start") || 67986470930SIngo Molnar strstr(name, "_text_end")) 68086470930SIngo Molnar return 1; 68186470930SIngo Molnar 68282d1deb0SDavid Ahern if (symbol__is_idle(sym)) 683171b3be9SArnaldo Carvalho de Melo sym->ignore = true; 68486470930SIngo Molnar 68586470930SIngo Molnar return 0; 68686470930SIngo Molnar } 68786470930SIngo Molnar 6887c50391fSNamhyung Kim static int hist_iter__top_callback(struct hist_entry_iter *iter, 6897c50391fSNamhyung Kim struct addr_location *al, bool single, 6907c50391fSNamhyung Kim void *arg) 6917c50391fSNamhyung Kim { 6927c50391fSNamhyung Kim struct perf_top *top = arg; 6937c50391fSNamhyung Kim struct hist_entry *he = iter->he; 6947c50391fSNamhyung Kim struct perf_evsel *evsel = iter->evsel; 6957c50391fSNamhyung Kim 6962e0453afSJiri Olsa if (perf_hpp_list.sym && single) 69764226bcfSNamhyung Kim perf_top__record_precise_ip(top, he, evsel->idx, al->addr); 6987c50391fSNamhyung Kim 699a18b027eSAndi Kleen hist__account_cycles(iter->sample->branch_stack, al, iter->sample, 700a18b027eSAndi Kleen !(top->record_opts.branch_stack & PERF_SAMPLE_BRANCH_ANY)); 7017c50391fSNamhyung Kim return 0; 7027c50391fSNamhyung Kim } 7037c50391fSNamhyung Kim 7041758af10SArnaldo Carvalho de Melo static void perf_event__process_sample(struct perf_tool *tool, 7051758af10SArnaldo Carvalho de Melo const union perf_event *event, 7067b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel, 7078d50e5b4SArnaldo Carvalho de Melo struct perf_sample *sample, 708743eb868SArnaldo Carvalho de Melo struct machine *machine) 70986470930SIngo Molnar { 7101758af10SArnaldo Carvalho de Melo struct perf_top *top = container_of(tool, struct perf_top, tool); 7111ed091c4SArnaldo Carvalho de Melo struct addr_location al; 71219d4ac3cSArnaldo Carvalho de Melo int err; 7135b2bb75aSArnaldo Carvalho de Melo 71423346f21SArnaldo Carvalho de Melo if (!machine && perf_guest) { 7156b118e92SDavid Ahern static struct intlist *seen; 7166b118e92SDavid Ahern 7176b118e92SDavid Ahern if (!seen) 718ffe0fb76SArnaldo Carvalho de Melo seen = intlist__new(NULL); 7196b118e92SDavid Ahern 720ef89325fSAdrian Hunter if (!intlist__has_entry(seen, sample->pid)) { 721a1645ce1SZhang, Yanmin pr_err("Can't find guest [%d]'s kernel information\n", 722ef89325fSAdrian Hunter sample->pid); 723ef89325fSAdrian Hunter intlist__add(seen, sample->pid); 7246b118e92SDavid Ahern } 725a1645ce1SZhang, Yanmin return; 726a1645ce1SZhang, Yanmin } 727a1645ce1SZhang, Yanmin 7280c095715SJoerg Roedel if (!machine) { 72911859e82SArnaldo Carvalho de Melo pr_err("%u unprocessable samples recorded.\r", 73075be989aSArnaldo Carvalho de Melo top->session->evlist->stats.nr_unprocessable_samples++); 7310c095715SJoerg Roedel return; 7320c095715SJoerg Roedel } 7330c095715SJoerg Roedel 7348115d60cSArnaldo Carvalho de Melo if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) 7351758af10SArnaldo Carvalho de Melo top->exact_samples++; 7361676b8a0SPeter Zijlstra 737bb3eb566SArnaldo Carvalho de Melo if (machine__resolve(machine, &al, sample) < 0) 7381ed091c4SArnaldo Carvalho de Melo return; 73986470930SIngo Molnar 740e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && 7415f6f5580SArnaldo Carvalho de Melo symbol_conf.kptr_restrict && 7425f6f5580SArnaldo Carvalho de Melo al.cpumode == PERF_RECORD_MISC_KERNEL) { 7435f6f5580SArnaldo Carvalho de Melo ui__warning( 7445f6f5580SArnaldo Carvalho de Melo "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" 7455f6f5580SArnaldo Carvalho de Melo "Check /proc/sys/kernel/kptr_restrict.\n\n" 7465f6f5580SArnaldo Carvalho de Melo "Kernel%s samples will not be resolved.\n", 747c6718350SWang Nan al.map && !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? 7485f6f5580SArnaldo Carvalho de Melo " modules" : ""); 7495f6f5580SArnaldo Carvalho de Melo if (use_browser <= 0) 7505f6f5580SArnaldo Carvalho de Melo sleep(5); 751e77a0742SArnaldo Carvalho de Melo machine->kptr_restrict_warned = true; 7525f6f5580SArnaldo Carvalho de Melo } 7535f6f5580SArnaldo Carvalho de Melo 75472b8fa17SArnaldo Carvalho de Melo if (al.sym == NULL) { 755e4a338d0SArnaldo Carvalho de Melo const char *msg = "Kernel samples will not be resolved.\n"; 75672b8fa17SArnaldo Carvalho de Melo /* 75772b8fa17SArnaldo Carvalho de Melo * As we do lazy loading of symtabs we only will know if the 75872b8fa17SArnaldo Carvalho de Melo * specified vmlinux file is invalid when we actually have a 75972b8fa17SArnaldo Carvalho de Melo * hit in kernel space and then try to load it. So if we get 76072b8fa17SArnaldo Carvalho de Melo * here and there are _no_ symbols in the DSO backing the 76172b8fa17SArnaldo Carvalho de Melo * kernel map, bail out. 76272b8fa17SArnaldo Carvalho de Melo * 76372b8fa17SArnaldo Carvalho de Melo * We may never get here, for instance, if we use -K/ 76472b8fa17SArnaldo Carvalho de Melo * --hide-kernel-symbols, even if the user specifies an 76572b8fa17SArnaldo Carvalho de Melo * invalid --vmlinux ;-) 76672b8fa17SArnaldo Carvalho de Melo */ 767e77a0742SArnaldo Carvalho de Melo if (!machine->kptr_restrict_warned && !top->vmlinux_warned && 768e4a338d0SArnaldo Carvalho de Melo al.map == machine->vmlinux_maps[MAP__FUNCTION] && 76972b8fa17SArnaldo Carvalho de Melo RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { 770e4a338d0SArnaldo Carvalho de Melo if (symbol_conf.vmlinux_name) { 77118425f13SArnaldo Carvalho de Melo char serr[256]; 77218425f13SArnaldo Carvalho de Melo dso__strerror_load(al.map->dso, serr, sizeof(serr)); 77318425f13SArnaldo Carvalho de Melo ui__warning("The %s file can't be used: %s\n%s", 77418425f13SArnaldo Carvalho de Melo symbol_conf.vmlinux_name, serr, msg); 775e4a338d0SArnaldo Carvalho de Melo } else { 776e4a338d0SArnaldo Carvalho de Melo ui__warning("A vmlinux file was not found.\n%s", 777e4a338d0SArnaldo Carvalho de Melo msg); 778e4a338d0SArnaldo Carvalho de Melo } 779e4a338d0SArnaldo Carvalho de Melo 780e4a338d0SArnaldo Carvalho de Melo if (use_browser <= 0) 781e4a338d0SArnaldo Carvalho de Melo sleep(5); 7821758af10SArnaldo Carvalho de Melo top->vmlinux_warned = true; 78372b8fa17SArnaldo Carvalho de Melo } 78472b8fa17SArnaldo Carvalho de Melo } 78572b8fa17SArnaldo Carvalho de Melo 786ab81f3fdSArnaldo Carvalho de Melo if (al.sym == NULL || !al.sym->ignore) { 7874ea062edSArnaldo Carvalho de Melo struct hists *hists = evsel__hists(evsel); 7887c50391fSNamhyung Kim struct hist_entry_iter iter = { 789063bd936SNamhyung Kim .evsel = evsel, 790063bd936SNamhyung Kim .sample = sample, 7917c50391fSNamhyung Kim .add_entry_cb = hist_iter__top_callback, 7927c50391fSNamhyung Kim }; 79370db7533SArnaldo Carvalho de Melo 7947c50391fSNamhyung Kim if (symbol_conf.cumulate_callchain) 7957c50391fSNamhyung Kim iter.ops = &hist_iter_cumulative; 7967c50391fSNamhyung Kim else 7977c50391fSNamhyung Kim iter.ops = &hist_iter_normal; 79819d4ac3cSArnaldo Carvalho de Melo 7994ea062edSArnaldo Carvalho de Melo pthread_mutex_lock(&hists->lock); 8007c50391fSNamhyung Kim 801063bd936SNamhyung Kim err = hist_entry_iter__add(&iter, &al, top->max_stack, top); 8027c50391fSNamhyung Kim if (err < 0) 803ab81f3fdSArnaldo Carvalho de Melo pr_err("Problem incrementing symbol period, skipping event\n"); 804ab81f3fdSArnaldo Carvalho de Melo 8054ea062edSArnaldo Carvalho de Melo pthread_mutex_unlock(&hists->lock); 8065807806aSArnaldo Carvalho de Melo } 807ab81f3fdSArnaldo Carvalho de Melo 808b91fc39fSArnaldo Carvalho de Melo addr_location__put(&al); 80986470930SIngo Molnar } 81086470930SIngo Molnar 8111758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read_idx(struct perf_top *top, int idx) 81286470930SIngo Molnar { 8138d50e5b4SArnaldo Carvalho de Melo struct perf_sample sample; 8147b27509fSArnaldo Carvalho de Melo struct perf_evsel *evsel; 8151758af10SArnaldo Carvalho de Melo struct perf_session *session = top->session; 8168115d60cSArnaldo Carvalho de Melo union perf_event *event; 817743eb868SArnaldo Carvalho de Melo struct machine *machine; 8185538becaSFrederic Weisbecker int ret; 81986470930SIngo Molnar 8201758af10SArnaldo Carvalho de Melo while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { 8210807d2d8SArnaldo Carvalho de Melo ret = perf_evlist__parse_sample(top->evlist, event, &sample); 8225538becaSFrederic Weisbecker if (ret) { 8235538becaSFrederic Weisbecker pr_err("Can't parse sample, err = %d\n", ret); 8248e50d384SZhouyi Zhou goto next_event; 8255538becaSFrederic Weisbecker } 82604391debSArnaldo Carvalho de Melo 8271758af10SArnaldo Carvalho de Melo evsel = perf_evlist__id2evsel(session->evlist, sample.id); 8287b27509fSArnaldo Carvalho de Melo assert(evsel != NULL); 8297b27509fSArnaldo Carvalho de Melo 8305b2bb75aSArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) 8311758af10SArnaldo Carvalho de Melo ++top->samples; 832743eb868SArnaldo Carvalho de Melo 833473398a2SArnaldo Carvalho de Melo switch (sample.cpumode) { 834743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_USER: 8351758af10SArnaldo Carvalho de Melo ++top->us_samples; 8361758af10SArnaldo Carvalho de Melo if (top->hide_user_symbols) 8378e50d384SZhouyi Zhou goto next_event; 83834ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 839743eb868SArnaldo Carvalho de Melo break; 840743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_KERNEL: 8411758af10SArnaldo Carvalho de Melo ++top->kernel_samples; 8421758af10SArnaldo Carvalho de Melo if (top->hide_kernel_symbols) 8438e50d384SZhouyi Zhou goto next_event; 84434ba5122SArnaldo Carvalho de Melo machine = &session->machines.host; 845743eb868SArnaldo Carvalho de Melo break; 846743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_KERNEL: 8471758af10SArnaldo Carvalho de Melo ++top->guest_kernel_samples; 848ef89325fSAdrian Hunter machine = perf_session__find_machine(session, 849ef89325fSAdrian Hunter sample.pid); 850743eb868SArnaldo Carvalho de Melo break; 851743eb868SArnaldo Carvalho de Melo case PERF_RECORD_MISC_GUEST_USER: 8521758af10SArnaldo Carvalho de Melo ++top->guest_us_samples; 853743eb868SArnaldo Carvalho de Melo /* 854743eb868SArnaldo Carvalho de Melo * TODO: we don't process guest user from host side 855743eb868SArnaldo Carvalho de Melo * except simple counting. 856743eb868SArnaldo Carvalho de Melo */ 8578e50d384SZhouyi Zhou goto next_event; 8584b37af59SNamhyung Kim default: 8594b37af59SNamhyung Kim if (event->header.type == PERF_RECORD_SAMPLE) 8604b37af59SNamhyung Kim goto next_event; 8614b37af59SNamhyung Kim machine = &session->machines.host; 8624b37af59SNamhyung Kim break; 863743eb868SArnaldo Carvalho de Melo } 864743eb868SArnaldo Carvalho de Melo 865743eb868SArnaldo Carvalho de Melo 8661758af10SArnaldo Carvalho de Melo if (event->header.type == PERF_RECORD_SAMPLE) { 8671758af10SArnaldo Carvalho de Melo perf_event__process_sample(&top->tool, event, evsel, 8681758af10SArnaldo Carvalho de Melo &sample, machine); 8691758af10SArnaldo Carvalho de Melo } else if (event->header.type < PERF_RECORD_MAX) { 8704ea062edSArnaldo Carvalho de Melo hists__inc_nr_events(evsel__hists(evsel), event->header.type); 871162f0befSFrederic Weisbecker machine__process_event(machine, event, &sample); 8727b27509fSArnaldo Carvalho de Melo } else 87375be989aSArnaldo Carvalho de Melo ++session->evlist->stats.nr_unknown_events; 8748e50d384SZhouyi Zhou next_event: 8758e50d384SZhouyi Zhou perf_evlist__mmap_consume(top->evlist, idx); 87686470930SIngo Molnar } 87786470930SIngo Molnar } 87886470930SIngo Molnar 8791758af10SArnaldo Carvalho de Melo static void perf_top__mmap_read(struct perf_top *top) 8802f01190aSFrederic Weisbecker { 88170db7533SArnaldo Carvalho de Melo int i; 8822f01190aSFrederic Weisbecker 8831758af10SArnaldo Carvalho de Melo for (i = 0; i < top->evlist->nr_mmaps; i++) 8841758af10SArnaldo Carvalho de Melo perf_top__mmap_read_idx(top, i); 8852f01190aSFrederic Weisbecker } 8862f01190aSFrederic Weisbecker 88711859e82SArnaldo Carvalho de Melo static int perf_top__start_counters(struct perf_top *top) 88872cb7013SArnaldo Carvalho de Melo { 88956e52e85SArnaldo Carvalho de Melo char msg[512]; 8906a4bb04cSJiri Olsa struct perf_evsel *counter; 8911758af10SArnaldo Carvalho de Melo struct perf_evlist *evlist = top->evlist; 892b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 893727ab04eSArnaldo Carvalho de Melo 894e68ae9cfSArnaldo Carvalho de Melo perf_evlist__config(evlist, opts, &callchain_param); 89572cb7013SArnaldo Carvalho de Melo 896e5cadb93SArnaldo Carvalho de Melo evlist__for_each_entry(evlist, counter) { 89772cb7013SArnaldo Carvalho de Melo try_again: 8981758af10SArnaldo Carvalho de Melo if (perf_evsel__open(counter, top->evlist->cpus, 8996a4bb04cSJiri Olsa top->evlist->threads) < 0) { 90056e52e85SArnaldo Carvalho de Melo if (perf_evsel__fallback(counter, errno, msg, sizeof(msg))) { 90172cb7013SArnaldo Carvalho de Melo if (verbose) 902c0a54341SArnaldo Carvalho de Melo ui__warning("%s\n", msg); 90372cb7013SArnaldo Carvalho de Melo goto try_again; 90472cb7013SArnaldo Carvalho de Melo } 905c286c419SArnaldo Carvalho de Melo 90656e52e85SArnaldo Carvalho de Melo perf_evsel__open_strerror(counter, &opts->target, 90756e52e85SArnaldo Carvalho de Melo errno, msg, sizeof(msg)); 90856e52e85SArnaldo Carvalho de Melo ui__error("%s\n", msg); 909c286c419SArnaldo Carvalho de Melo goto out_err; 91072cb7013SArnaldo Carvalho de Melo } 91172cb7013SArnaldo Carvalho de Melo } 91270db7533SArnaldo Carvalho de Melo 9132376c67aSArnaldo Carvalho de Melo if (perf_evlist__mmap(evlist, opts->mmap_pages, false) < 0) { 9143780f488SNamhyung Kim ui__error("Failed to mmap with %d (%s)\n", 915c8b5f2c9SArnaldo Carvalho de Melo errno, str_error_r(errno, msg, sizeof(msg))); 916c286c419SArnaldo Carvalho de Melo goto out_err; 917c286c419SArnaldo Carvalho de Melo } 918c286c419SArnaldo Carvalho de Melo 91911859e82SArnaldo Carvalho de Melo return 0; 920c286c419SArnaldo Carvalho de Melo 921c286c419SArnaldo Carvalho de Melo out_err: 92211859e82SArnaldo Carvalho de Melo return -1; 92372cb7013SArnaldo Carvalho de Melo } 92472cb7013SArnaldo Carvalho de Melo 925e3815264SArnaldo Carvalho de Melo static int callchain_param__setup_sample_type(struct callchain_param *callchain) 92619d4ac3cSArnaldo Carvalho de Melo { 9272e0453afSJiri Olsa if (!perf_hpp_list.sym) { 928e3815264SArnaldo Carvalho de Melo if (callchain->enabled) { 9293780f488SNamhyung Kim ui__error("Selected -g but \"sym\" not present in --sort/-s."); 93019d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 93119d4ac3cSArnaldo Carvalho de Melo } 932e3815264SArnaldo Carvalho de Melo } else if (callchain->mode != CHAIN_NONE) { 933e3815264SArnaldo Carvalho de Melo if (callchain_register_param(callchain) < 0) { 9343780f488SNamhyung Kim ui__error("Can't register callchain params.\n"); 93519d4ac3cSArnaldo Carvalho de Melo return -EINVAL; 93619d4ac3cSArnaldo Carvalho de Melo } 93719d4ac3cSArnaldo Carvalho de Melo } 93819d4ac3cSArnaldo Carvalho de Melo 93919d4ac3cSArnaldo Carvalho de Melo return 0; 94019d4ac3cSArnaldo Carvalho de Melo } 94119d4ac3cSArnaldo Carvalho de Melo 9421758af10SArnaldo Carvalho de Melo static int __cmd_top(struct perf_top *top) 943716c69feSIngo Molnar { 944b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top->record_opts; 945716c69feSIngo Molnar pthread_t thread; 94619d4ac3cSArnaldo Carvalho de Melo int ret; 947f5fc1412SJiri Olsa 9486a4d98d7SJiri Olsa top->session = perf_session__new(NULL, false, NULL); 9491758af10SArnaldo Carvalho de Melo if (top->session == NULL) 95052e02834STaeung Song return -1; 951716c69feSIngo Molnar 95236035f78SAdrian Hunter machines__set_symbol_filter(&top->session->machines, symbol_filter); 95336035f78SAdrian Hunter 9540d3942dbSSukadev Bhattiprolu if (!objdump_path) { 955eebd0bfcSArnaldo Carvalho de Melo ret = perf_env__lookup_objdump(&top->session->header.env); 9560d3942dbSSukadev Bhattiprolu if (ret) 9570d3942dbSSukadev Bhattiprolu goto out_delete; 9580d3942dbSSukadev Bhattiprolu } 9590d3942dbSSukadev Bhattiprolu 960e3815264SArnaldo Carvalho de Melo ret = callchain_param__setup_sample_type(&callchain_param); 96119d4ac3cSArnaldo Carvalho de Melo if (ret) 96219d4ac3cSArnaldo Carvalho de Melo goto out_delete; 96319d4ac3cSArnaldo Carvalho de Melo 9649d8b172fSMasami Hiramatsu if (perf_session__register_idle_thread(top->session) < 0) 965c53d138dSNamhyung Kim goto out_delete; 966c53d138dSNamhyung Kim 967a33fbd56SArnaldo Carvalho de Melo machine__synthesize_threads(&top->session->machines.host, &opts->target, 9689d9cad76SKan Liang top->evlist->threads, false, opts->proc_map_timeout); 9692e7ea3abSKan Liang 97035a634f7SJiri Olsa if (perf_hpp_list.socket) { 9712e7ea3abSKan Liang ret = perf_env__read_cpu_topology_map(&perf_env); 9722e7ea3abSKan Liang if (ret < 0) 9732e7ea3abSKan Liang goto out_err_cpu_topo; 9742e7ea3abSKan Liang } 9752e7ea3abSKan Liang 97611859e82SArnaldo Carvalho de Melo ret = perf_top__start_counters(top); 97711859e82SArnaldo Carvalho de Melo if (ret) 97811859e82SArnaldo Carvalho de Melo goto out_delete; 97911859e82SArnaldo Carvalho de Melo 9801758af10SArnaldo Carvalho de Melo top->session->evlist = top->evlist; 9817b56cce2SArnaldo Carvalho de Melo perf_session__set_id_hdr_size(top->session); 98286470930SIngo Molnar 9832376c67aSArnaldo Carvalho de Melo /* 9842376c67aSArnaldo Carvalho de Melo * When perf is starting the traced process, all the events (apart from 9852376c67aSArnaldo Carvalho de Melo * group members) have enable_on_exec=1 set, so don't spoil it by 9862376c67aSArnaldo Carvalho de Melo * prematurely enabling them. 9872376c67aSArnaldo Carvalho de Melo * 9882376c67aSArnaldo Carvalho de Melo * XXX 'top' still doesn't start workloads like record, trace, but should, 9892376c67aSArnaldo Carvalho de Melo * so leave the check here. 9902376c67aSArnaldo Carvalho de Melo */ 991602ad878SArnaldo Carvalho de Melo if (!target__none(&opts->target)) 9922376c67aSArnaldo Carvalho de Melo perf_evlist__enable(top->evlist); 9932376c67aSArnaldo Carvalho de Melo 9942f01190aSFrederic Weisbecker /* Wait for a minimal set of events before starting the snapshot */ 995f66a889dSArnaldo Carvalho de Melo perf_evlist__poll(top->evlist, 100); 9962f01190aSFrederic Weisbecker 9971758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 9982f01190aSFrederic Weisbecker 99911859e82SArnaldo Carvalho de Melo ret = -1; 1000c0443df1SArnaldo Carvalho de Melo if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : 10011758af10SArnaldo Carvalho de Melo display_thread), top)) { 10023780f488SNamhyung Kim ui__error("Could not create display thread.\n"); 100311859e82SArnaldo Carvalho de Melo goto out_delete; 100486470930SIngo Molnar } 100586470930SIngo Molnar 10061758af10SArnaldo Carvalho de Melo if (top->realtime_prio) { 100786470930SIngo Molnar struct sched_param param; 100886470930SIngo Molnar 10091758af10SArnaldo Carvalho de Melo param.sched_priority = top->realtime_prio; 101086470930SIngo Molnar if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { 10113780f488SNamhyung Kim ui__error("Could not set realtime priority.\n"); 1012ae256fa2SJiri Olsa goto out_join; 101386470930SIngo Molnar } 101486470930SIngo Molnar } 101586470930SIngo Molnar 101611859e82SArnaldo Carvalho de Melo while (!done) { 10171758af10SArnaldo Carvalho de Melo u64 hits = top->samples; 101886470930SIngo Molnar 10191758af10SArnaldo Carvalho de Melo perf_top__mmap_read(top); 102086470930SIngo Molnar 10211758af10SArnaldo Carvalho de Melo if (hits == top->samples) 1022f66a889dSArnaldo Carvalho de Melo ret = perf_evlist__poll(top->evlist, 100); 102386470930SIngo Molnar } 102486470930SIngo Molnar 102511859e82SArnaldo Carvalho de Melo ret = 0; 1026ae256fa2SJiri Olsa out_join: 1027ae256fa2SJiri Olsa pthread_join(thread, NULL); 102819d4ac3cSArnaldo Carvalho de Melo out_delete: 10291758af10SArnaldo Carvalho de Melo perf_session__delete(top->session); 10301758af10SArnaldo Carvalho de Melo top->session = NULL; 103119d4ac3cSArnaldo Carvalho de Melo 103211859e82SArnaldo Carvalho de Melo return ret; 10332e7ea3abSKan Liang 10342e7ea3abSKan Liang out_err_cpu_topo: { 10352e7ea3abSKan Liang char errbuf[BUFSIZ]; 1036c8b5f2c9SArnaldo Carvalho de Melo const char *err = str_error_r(-ret, errbuf, sizeof(errbuf)); 10372e7ea3abSKan Liang 10382e7ea3abSKan Liang ui__error("Could not read the CPU topology map: %s\n", err); 10392e7ea3abSKan Liang goto out_delete; 10402e7ea3abSKan Liang } 104119d4ac3cSArnaldo Carvalho de Melo } 104219d4ac3cSArnaldo Carvalho de Melo 104319d4ac3cSArnaldo Carvalho de Melo static int 1044ae779a63SJiri Olsa callchain_opt(const struct option *opt, const char *arg, int unset) 1045ae779a63SJiri Olsa { 1046ae779a63SJiri Olsa symbol_conf.use_callchain = true; 1047ae779a63SJiri Olsa return record_callchain_opt(opt, arg, unset); 1048ae779a63SJiri Olsa } 1049ae779a63SJiri Olsa 1050ae779a63SJiri Olsa static int 10511758af10SArnaldo Carvalho de Melo parse_callchain_opt(const struct option *opt, const char *arg, int unset) 105219d4ac3cSArnaldo Carvalho de Melo { 10532ddd5c04SArnaldo Carvalho de Melo struct callchain_param *callchain = opt->value; 1054a2c10d39SNamhyung Kim 10552ddd5c04SArnaldo Carvalho de Melo callchain->enabled = !unset; 10562ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_FP; 1057a2c10d39SNamhyung Kim 1058a2c10d39SNamhyung Kim /* 1059a2c10d39SNamhyung Kim * --no-call-graph 1060a2c10d39SNamhyung Kim */ 1061a2c10d39SNamhyung Kim if (unset) { 1062a2c10d39SNamhyung Kim symbol_conf.use_callchain = false; 10632ddd5c04SArnaldo Carvalho de Melo callchain->record_mode = CALLCHAIN_NONE; 1064a2c10d39SNamhyung Kim return 0; 1065a2c10d39SNamhyung Kim } 1066a2c10d39SNamhyung Kim 1067a2c10d39SNamhyung Kim return parse_callchain_top_opt(arg); 106886470930SIngo Molnar } 106986470930SIngo Molnar 1070b8cbb349SWang Nan static int perf_top_config(const char *var, const char *value, void *cb __maybe_unused) 1071eb853e80SJiri Olsa { 1072eb853e80SJiri Olsa if (!strcmp(var, "top.call-graph")) 10735a2e5e85SNamhyung Kim var = "call-graph.record-mode"; /* fall-through */ 1074104ac991SNamhyung Kim if (!strcmp(var, "top.children")) { 1075104ac991SNamhyung Kim symbol_conf.cumulate_callchain = perf_config_bool(var, value); 1076104ac991SNamhyung Kim return 0; 1077104ac991SNamhyung Kim } 1078eb853e80SJiri Olsa 1079b8cbb349SWang Nan return 0; 1080eb853e80SJiri Olsa } 1081eb853e80SJiri Olsa 1082fa5df943SNamhyung Kim static int 1083fa5df943SNamhyung Kim parse_percent_limit(const struct option *opt, const char *arg, 1084fa5df943SNamhyung Kim int unset __maybe_unused) 1085fa5df943SNamhyung Kim { 1086fa5df943SNamhyung Kim struct perf_top *top = opt->value; 1087fa5df943SNamhyung Kim 1088fa5df943SNamhyung Kim top->min_percent = strtof(arg, NULL); 1089fa5df943SNamhyung Kim return 0; 1090fa5df943SNamhyung Kim } 1091fa5df943SNamhyung Kim 109276a26549SNamhyung Kim const char top_callchain_help[] = CALLCHAIN_RECORD_HELP CALLCHAIN_REPORT_HELP 109376a26549SNamhyung Kim "\n\t\t\t\tDefault: fp,graph,0.5,caller,function"; 1094a2c10d39SNamhyung Kim 10951d037ca1SIrina Tirdea int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused) 10961758af10SArnaldo Carvalho de Melo { 109716ad2ffbSNamhyung Kim char errbuf[BUFSIZ]; 10981758af10SArnaldo Carvalho de Melo struct perf_top top = { 10991758af10SArnaldo Carvalho de Melo .count_filter = 5, 11001758af10SArnaldo Carvalho de Melo .delay_secs = 2, 11012376c67aSArnaldo Carvalho de Melo .record_opts = { 11022376c67aSArnaldo Carvalho de Melo .mmap_pages = UINT_MAX, 11032376c67aSArnaldo Carvalho de Melo .user_freq = UINT_MAX, 11042376c67aSArnaldo Carvalho de Melo .user_interval = ULLONG_MAX, 1105447a6013SArnaldo Carvalho de Melo .freq = 4000, /* 4 KHz */ 1106d1cb9fceSNamhyung Kim .target = { 1107d1cb9fceSNamhyung Kim .uses_mmap = true, 1108d1cb9fceSNamhyung Kim }, 11099d9cad76SKan Liang .proc_map_timeout = 500, 11102376c67aSArnaldo Carvalho de Melo }, 11114cb93446SArnaldo Carvalho de Melo .max_stack = sysctl_perf_event_max_stack, 11122376c67aSArnaldo Carvalho de Melo .sym_pcnt_filter = 5, 11131758af10SArnaldo Carvalho de Melo }; 1114b4006796SArnaldo Carvalho de Melo struct record_opts *opts = &top.record_opts; 1115602ad878SArnaldo Carvalho de Melo struct target *target = &opts->target; 11161758af10SArnaldo Carvalho de Melo const struct option options[] = { 11178c3e10ebSArnaldo Carvalho de Melo OPT_CALLBACK('e', "event", &top.evlist, "event", 111886470930SIngo Molnar "event selector. use 'perf list' to list available events", 1119f120f9d5SJiri Olsa parse_events_option), 11202376c67aSArnaldo Carvalho de Melo OPT_U64('c', "count", &opts->user_interval, "event period to sample"), 11212376c67aSArnaldo Carvalho de Melo OPT_STRING('p', "pid", &target->pid, "pid", 1122d6d901c2SZhang, Yanmin "profile events on existing process id"), 11232376c67aSArnaldo Carvalho de Melo OPT_STRING('t', "tid", &target->tid, "tid", 1124d6d901c2SZhang, Yanmin "profile events on existing thread id"), 11252376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('a', "all-cpus", &target->system_wide, 112686470930SIngo Molnar "system-wide collection from all CPUs"), 11272376c67aSArnaldo Carvalho de Melo OPT_STRING('C', "cpu", &target->cpu_list, "cpu", 1128c45c6ea2SStephane Eranian "list of cpus to monitor"), 1129b32d133aSArnaldo Carvalho de Melo OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, 1130b32d133aSArnaldo Carvalho de Melo "file", "vmlinux pathname"), 1131fc2be696SWilly Tarreau OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux, 1132fc2be696SWilly Tarreau "don't load vmlinux even if found"), 11338c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, 11348ffcda17SArnaldo Carvalho de Melo "hide kernel symbols"), 1135994a1f78SJiri Olsa OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages", 1136994a1f78SJiri Olsa "number of mmap data pages", 1137994a1f78SJiri Olsa perf_evlist__parse_mmap_pages), 11381758af10SArnaldo Carvalho de Melo OPT_INTEGER('r', "realtime", &top.realtime_prio, 113986470930SIngo Molnar "collect data with this RT SCHED_FIFO priority"), 11408c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('d', "delay", &top.delay_secs, 114186470930SIngo Molnar "number of seconds to delay between refreshes"), 11421758af10SArnaldo Carvalho de Melo OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, 114386470930SIngo Molnar "dump the symbol table used for profiling"), 11448c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('f', "count-filter", &top.count_filter, 114586470930SIngo Molnar "only display functions with more events than this"), 1146bf80669eSDavid Ahern OPT_BOOLEAN(0, "group", &opts->group, 114786470930SIngo Molnar "put the counters into a counter group"), 11482376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('i', "no-inherit", &opts->no_inherit, 11492376c67aSArnaldo Carvalho de Melo "child tasks do not inherit counters"), 11501758af10SArnaldo Carvalho de Melo OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", 11516cff0e8dSKirill Smelkov "symbol to annotate"), 11522376c67aSArnaldo Carvalho de Melo OPT_BOOLEAN('z', "zero", &top.zero, "zero history across updates"), 11532376c67aSArnaldo Carvalho de Melo OPT_UINTEGER('F', "freq", &opts->user_freq, "profile at this frequency"), 11548c3e10ebSArnaldo Carvalho de Melo OPT_INTEGER('E', "entries", &top.print_entries, 115586470930SIngo Molnar "display this many functions"), 11568c3e10ebSArnaldo Carvalho de Melo OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, 11578ffcda17SArnaldo Carvalho de Melo "hide user symbols"), 11581758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), 11591758af10SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), 1160c0555642SIan Munsie OPT_INCR('v', "verbose", &verbose, 11613da297a6SIngo Molnar "be more verbose (show counter open errors, etc)"), 1162ab81f3fdSArnaldo Carvalho de Melo OPT_STRING('s', "sort", &sort_order, "key[,key2...]", 1163a2ce067eSNamhyung Kim "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..." 1164a2ce067eSNamhyung Kim " Please refer the man page for the complete list."), 11656fe8c26dSNamhyung Kim OPT_STRING(0, "fields", &field_order, "key[,keys...]", 11666fe8c26dSNamhyung Kim "output field(s): overhead, period, sample plus all of sort keys"), 1167ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, 1168ab81f3fdSArnaldo Carvalho de Melo "Show a column with the number of samples"), 11692ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK_NOOPT('g', NULL, &callchain_param, 1170a2c10d39SNamhyung Kim NULL, "enables call-graph recording and display", 1171ae779a63SJiri Olsa &callchain_opt), 11722ddd5c04SArnaldo Carvalho de Melo OPT_CALLBACK(0, "call-graph", &callchain_param, 117376a26549SNamhyung Kim "record_mode[,record_size],print_type,threshold[,print_limit],order,sort_key[,branch]", 1174a2c10d39SNamhyung Kim top_callchain_help, &parse_callchain_opt), 11751432ec34SNamhyung Kim OPT_BOOLEAN(0, "children", &symbol_conf.cumulate_callchain, 11761432ec34SNamhyung Kim "Accumulate callchains of children and show total overhead as well"), 11775dbb6e81SWaiman Long OPT_INTEGER(0, "max-stack", &top.max_stack, 11785dbb6e81SWaiman Long "Set the maximum stack depth when parsing the callchain. " 11794cb93446SArnaldo Carvalho de Melo "Default: kernel.perf_event_max_stack or " __stringify(PERF_MAX_STACK_DEPTH)), 1180b21484f1SGreg Price OPT_CALLBACK(0, "ignore-callees", NULL, "regex", 1181b21484f1SGreg Price "ignore callees of these functions in call graphs", 1182b21484f1SGreg Price report_parse_ignore_callees_opt), 1183ab81f3fdSArnaldo Carvalho de Melo OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, 1184ab81f3fdSArnaldo Carvalho de Melo "Show a column with the sum of periods"), 1185ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 1186ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these dsos"), 1187ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 1188ab81f3fdSArnaldo Carvalho de Melo "only consider symbols in these comms"), 1189ab81f3fdSArnaldo Carvalho de Melo OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", 1190ab81f3fdSArnaldo Carvalho de Melo "only consider these symbols"), 119164c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, 119264c6f0c7SArnaldo Carvalho de Melo "Interleave source code with assembly code (default)"), 119364c6f0c7SArnaldo Carvalho de Melo OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, 119464c6f0c7SArnaldo Carvalho de Melo "Display raw encoding of assembly instructions (default)"), 1195763122adSAvi Kivity OPT_BOOLEAN(0, "demangle-kernel", &symbol_conf.demangle_kernel, 1196763122adSAvi Kivity "Enable kernel symbol demangling"), 11970d3942dbSSukadev Bhattiprolu OPT_STRING(0, "objdump", &objdump_path, "path", 11980d3942dbSSukadev Bhattiprolu "objdump binary to use for disassembly and annotations"), 119964c6f0c7SArnaldo Carvalho de Melo OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", 120064c6f0c7SArnaldo Carvalho de Melo "Specify disassembler style (e.g. -M intel for intel syntax)"), 12012376c67aSArnaldo Carvalho de Melo OPT_STRING('u', "uid", &target->uid_str, "user", "user to profile"), 1202fa5df943SNamhyung Kim OPT_CALLBACK(0, "percent-limit", &top, "percent", 1203fa5df943SNamhyung Kim "Don't show entries under that percent", parse_percent_limit), 120433db4568SNamhyung Kim OPT_CALLBACK(0, "percentage", NULL, "relative|absolute", 120533db4568SNamhyung Kim "How to display percentage of filtered entries", parse_filter_percentage), 1206cf59002fSNamhyung Kim OPT_STRING('w', "column-widths", &symbol_conf.col_width_list_str, 1207cf59002fSNamhyung Kim "width[,width...]", 1208cf59002fSNamhyung Kim "don't try to adjust column width, use these fixed values"), 12099d9cad76SKan Liang OPT_UINTEGER(0, "proc-map-timeout", &opts->proc_map_timeout, 12109d9cad76SKan Liang "per thread proc mmap processing timeout in ms"), 1211a18b027eSAndi Kleen OPT_CALLBACK_NOOPT('b', "branch-any", &opts->branch_stack, 1212a18b027eSAndi Kleen "branch any", "sample any taken branches", 1213a18b027eSAndi Kleen parse_branch_stack), 1214a18b027eSAndi Kleen OPT_CALLBACK('j', "branch-filter", &opts->branch_stack, 1215a18b027eSAndi Kleen "branch filter mask", "branch stack filter modes", 1216a18b027eSAndi Kleen parse_branch_stack), 1217053a3989SNamhyung Kim OPT_BOOLEAN(0, "raw-trace", &symbol_conf.raw_trace, 1218053a3989SNamhyung Kim "Show raw trace event output (do not use print fmt or plugins)"), 1219c92fcfdeSNamhyung Kim OPT_BOOLEAN(0, "hierarchy", &symbol_conf.report_hierarchy, 1220c92fcfdeSNamhyung Kim "Show entries in a hierarchy"), 122186470930SIngo Molnar OPT_END() 122286470930SIngo Molnar }; 1223be772842SArnaldo Carvalho de Melo const char * const top_usage[] = { 1224be772842SArnaldo Carvalho de Melo "perf top [<options>]", 1225be772842SArnaldo Carvalho de Melo NULL 1226be772842SArnaldo Carvalho de Melo }; 1227a635fc51SArnaldo Carvalho de Melo int status = hists__init(); 1228a635fc51SArnaldo Carvalho de Melo 1229a635fc51SArnaldo Carvalho de Melo if (status < 0) 1230a635fc51SArnaldo Carvalho de Melo return status; 123186470930SIngo Molnar 1232334fe7a3SNamhyung Kim top.evlist = perf_evlist__new(); 12338c3e10ebSArnaldo Carvalho de Melo if (top.evlist == NULL) 1234361c99a6SArnaldo Carvalho de Melo return -ENOMEM; 1235361c99a6SArnaldo Carvalho de Melo 1236eb853e80SJiri Olsa perf_config(perf_top_config, &top); 1237eb853e80SJiri Olsa 123886470930SIngo Molnar argc = parse_options(argc, argv, options, top_usage, 0); 123986470930SIngo Molnar if (argc) 124086470930SIngo Molnar usage_with_options(top_usage, options); 124186470930SIngo Molnar 124254f8f403SNamhyung Kim if (!top.evlist->nr_entries && 124354f8f403SNamhyung Kim perf_evlist__add_default(top.evlist) < 0) { 124454f8f403SNamhyung Kim pr_err("Not enough memory for event selector list\n"); 124554f8f403SNamhyung Kim goto out_delete_evlist; 124654f8f403SNamhyung Kim } 124754f8f403SNamhyung Kim 1248c92fcfdeSNamhyung Kim if (symbol_conf.report_hierarchy) { 1249c92fcfdeSNamhyung Kim /* disable incompatible options */ 1250c92fcfdeSNamhyung Kim symbol_conf.event_group = false; 1251c92fcfdeSNamhyung Kim symbol_conf.cumulate_callchain = false; 1252c92fcfdeSNamhyung Kim 1253c92fcfdeSNamhyung Kim if (field_order) { 1254c92fcfdeSNamhyung Kim pr_err("Error: --hierarchy and --fields options cannot be used together\n"); 1255c92fcfdeSNamhyung Kim parse_options_usage(top_usage, options, "fields", 0); 1256c92fcfdeSNamhyung Kim parse_options_usage(NULL, options, "hierarchy", 0); 1257c92fcfdeSNamhyung Kim goto out_delete_evlist; 1258c92fcfdeSNamhyung Kim } 1259c92fcfdeSNamhyung Kim } 1260c92fcfdeSNamhyung Kim 1261512ae1bdSNamhyung Kim sort__mode = SORT_MODE__TOP; 12623a5714f8SNamhyung Kim /* display thread wants entries to be collapsed in a different tree */ 126352225036SJiri Olsa perf_hpp_list.need_collapse = 1; 12643a5714f8SNamhyung Kim 12653ee60c3bSArnaldo Carvalho de Melo if (top.use_stdio) 12663ee60c3bSArnaldo Carvalho de Melo use_browser = 0; 12673ee60c3bSArnaldo Carvalho de Melo else if (top.use_tui) 12683ee60c3bSArnaldo Carvalho de Melo use_browser = 1; 12693ee60c3bSArnaldo Carvalho de Melo 12703ee60c3bSArnaldo Carvalho de Melo setup_browser(false); 12713ee60c3bSArnaldo Carvalho de Melo 127240184c46SNamhyung Kim if (setup_sorting(top.evlist) < 0) { 12736fe8c26dSNamhyung Kim if (sort_order) 12746fe8c26dSNamhyung Kim parse_options_usage(top_usage, options, "s", 1); 12756fe8c26dSNamhyung Kim if (field_order) 12766fe8c26dSNamhyung Kim parse_options_usage(sort_order ? NULL : top_usage, 12776fe8c26dSNamhyung Kim options, "fields", 0); 12786fe8c26dSNamhyung Kim goto out_delete_evlist; 12796fe8c26dSNamhyung Kim } 128022af969eSNamhyung Kim 1281602ad878SArnaldo Carvalho de Melo status = target__validate(target); 128216ad2ffbSNamhyung Kim if (status) { 1283602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1284ea432a8bSIngo Molnar ui__warning("%s\n", errbuf); 128516ad2ffbSNamhyung Kim } 12864bd0f2d2SNamhyung Kim 1287602ad878SArnaldo Carvalho de Melo status = target__parse_uid(target); 128816ad2ffbSNamhyung Kim if (status) { 128916ad2ffbSNamhyung Kim int saved_errno = errno; 129016ad2ffbSNamhyung Kim 1291602ad878SArnaldo Carvalho de Melo target__strerror(target, status, errbuf, BUFSIZ); 1292ea432a8bSIngo Molnar ui__error("%s\n", errbuf); 129316ad2ffbSNamhyung Kim 129416ad2ffbSNamhyung Kim status = -saved_errno; 12950d37aa34SArnaldo Carvalho de Melo goto out_delete_evlist; 129616ad2ffbSNamhyung Kim } 12970d37aa34SArnaldo Carvalho de Melo 1298602ad878SArnaldo Carvalho de Melo if (target__none(target)) 12992376c67aSArnaldo Carvalho de Melo target->system_wide = true; 130010b47d54SArnaldo Carvalho de Melo 1301f8a5c0b2SArnaldo Carvalho de Melo if (perf_evlist__create_maps(top.evlist, target) < 0) { 1302f8a5c0b2SArnaldo Carvalho de Melo ui__error("Couldn't create thread/CPU maps: %s\n", 1303c8b5f2c9SArnaldo Carvalho de Melo errno == ENOENT ? "No such process" : str_error_r(errno, errbuf, sizeof(errbuf))); 1304f8a5c0b2SArnaldo Carvalho de Melo goto out_delete_evlist; 1305f8a5c0b2SArnaldo Carvalho de Melo } 13067e2ed097SArnaldo Carvalho de Melo 1307d04b35f8SArnaldo Carvalho de Melo symbol_conf.nr_events = top.evlist->nr_entries; 1308d04b35f8SArnaldo Carvalho de Melo 13098c3e10ebSArnaldo Carvalho de Melo if (top.delay_secs < 1) 13108c3e10ebSArnaldo Carvalho de Melo top.delay_secs = 1; 131186470930SIngo Molnar 1312b4006796SArnaldo Carvalho de Melo if (record_opts__config(opts)) { 13132376c67aSArnaldo Carvalho de Melo status = -EINVAL; 131403ad9747SArnaldo Carvalho de Melo goto out_delete_evlist; 131569aad6f1SArnaldo Carvalho de Melo } 131669aad6f1SArnaldo Carvalho de Melo 13170c21f736SArnaldo Carvalho de Melo top.sym_evsel = perf_evlist__first(top.evlist); 1318cc841580SArnaldo Carvalho de Melo 1319e3815264SArnaldo Carvalho de Melo if (!callchain_param.enabled) { 13201432ec34SNamhyung Kim symbol_conf.cumulate_callchain = false; 13211432ec34SNamhyung Kim perf_hpp__cancel_cumulate(); 13221432ec34SNamhyung Kim } 13231432ec34SNamhyung Kim 1324792aeafaSNamhyung Kim if (symbol_conf.cumulate_callchain && !callchain_param.order_set) 1325792aeafaSNamhyung Kim callchain_param.order = ORDER_CALLER; 1326792aeafaSNamhyung Kim 1327ab81f3fdSArnaldo Carvalho de Melo symbol_conf.priv_size = sizeof(struct annotation); 132869aad6f1SArnaldo Carvalho de Melo 132969aad6f1SArnaldo Carvalho de Melo symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); 13300a7e6d1bSNamhyung Kim if (symbol__init(NULL) < 0) 133169aad6f1SArnaldo Carvalho de Melo return -1; 133269aad6f1SArnaldo Carvalho de Melo 133308e71542SNamhyung Kim sort__setup_elide(stdout); 1334ab81f3fdSArnaldo Carvalho de Melo 13351758af10SArnaldo Carvalho de Melo get_term_dimensions(&top.winsize); 13368c3e10ebSArnaldo Carvalho de Melo if (top.print_entries == 0) { 13371758af10SArnaldo Carvalho de Melo struct sigaction act = { 13381758af10SArnaldo Carvalho de Melo .sa_sigaction = perf_top__sig_winch, 13391758af10SArnaldo Carvalho de Melo .sa_flags = SA_SIGINFO, 13401758af10SArnaldo Carvalho de Melo }; 13411758af10SArnaldo Carvalho de Melo perf_top__update_print_entries(&top); 13421758af10SArnaldo Carvalho de Melo sigaction(SIGWINCH, &act, NULL); 13433b6ed988SArnaldo Carvalho de Melo } 13443b6ed988SArnaldo Carvalho de Melo 13451758af10SArnaldo Carvalho de Melo status = __cmd_top(&top); 1346806fb630SArnaldo Carvalho de Melo 13470d37aa34SArnaldo Carvalho de Melo out_delete_evlist: 13488c3e10ebSArnaldo Carvalho de Melo perf_evlist__delete(top.evlist); 134969aad6f1SArnaldo Carvalho de Melo 135069aad6f1SArnaldo Carvalho de Melo return status; 135186470930SIngo Molnar } 1352