1103a8feaSLen Brown /* 2103a8feaSLen Brown * turbostat -- show CPU frequency and C-state residency 3103a8feaSLen Brown * on modern Intel turbo-capable processors. 4103a8feaSLen Brown * 5e23da037SLen Brown * Copyright (c) 2012 Intel Corporation. 6103a8feaSLen Brown * Len Brown <len.brown@intel.com> 7103a8feaSLen Brown * 8103a8feaSLen Brown * This program is free software; you can redistribute it and/or modify it 9103a8feaSLen Brown * under the terms and conditions of the GNU General Public License, 10103a8feaSLen Brown * version 2, as published by the Free Software Foundation. 11103a8feaSLen Brown * 12103a8feaSLen Brown * This program is distributed in the hope it will be useful, but WITHOUT 13103a8feaSLen Brown * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14103a8feaSLen Brown * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15103a8feaSLen Brown * more details. 16103a8feaSLen Brown * 17103a8feaSLen Brown * You should have received a copy of the GNU General Public License along with 18103a8feaSLen Brown * this program; if not, write to the Free Software Foundation, Inc., 19103a8feaSLen Brown * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 20103a8feaSLen Brown */ 21103a8feaSLen Brown 2288c3281fSLen Brown #define _GNU_SOURCE 23103a8feaSLen Brown #include <stdio.h> 24103a8feaSLen Brown #include <unistd.h> 25103a8feaSLen Brown #include <sys/types.h> 26103a8feaSLen Brown #include <sys/wait.h> 27103a8feaSLen Brown #include <sys/stat.h> 28103a8feaSLen Brown #include <sys/resource.h> 29103a8feaSLen Brown #include <fcntl.h> 30103a8feaSLen Brown #include <signal.h> 31103a8feaSLen Brown #include <sys/time.h> 32103a8feaSLen Brown #include <stdlib.h> 33103a8feaSLen Brown #include <dirent.h> 34103a8feaSLen Brown #include <string.h> 35103a8feaSLen Brown #include <ctype.h> 3688c3281fSLen Brown #include <sched.h> 37103a8feaSLen Brown 38103a8feaSLen Brown #define MSR_NEHALEM_PLATFORM_INFO 0xCE 39103a8feaSLen Brown #define MSR_NEHALEM_TURBO_RATIO_LIMIT 0x1AD 406574a5d5SLen Brown #define MSR_IVT_TURBO_RATIO_LIMIT 0x1AE 41103a8feaSLen Brown #define MSR_APERF 0xE8 42103a8feaSLen Brown #define MSR_MPERF 0xE7 43103a8feaSLen Brown #define MSR_PKG_C2_RESIDENCY 0x60D /* SNB only */ 44103a8feaSLen Brown #define MSR_PKG_C3_RESIDENCY 0x3F8 45103a8feaSLen Brown #define MSR_PKG_C6_RESIDENCY 0x3F9 46103a8feaSLen Brown #define MSR_PKG_C7_RESIDENCY 0x3FA /* SNB only */ 47103a8feaSLen Brown #define MSR_CORE_C3_RESIDENCY 0x3FC 48103a8feaSLen Brown #define MSR_CORE_C6_RESIDENCY 0x3FD 49103a8feaSLen Brown #define MSR_CORE_C7_RESIDENCY 0x3FE /* SNB only */ 50103a8feaSLen Brown 51103a8feaSLen Brown char *proc_stat = "/proc/stat"; 52103a8feaSLen Brown unsigned int interval_sec = 5; /* set with -i interval_sec */ 53103a8feaSLen Brown unsigned int verbose; /* set with -v */ 54e23da037SLen Brown unsigned int summary_only; /* set with -s */ 55103a8feaSLen Brown unsigned int skip_c0; 56103a8feaSLen Brown unsigned int skip_c1; 57103a8feaSLen Brown unsigned int do_nhm_cstates; 58103a8feaSLen Brown unsigned int do_snb_cstates; 59103a8feaSLen Brown unsigned int has_aperf; 60103a8feaSLen Brown unsigned int units = 1000000000; /* Ghz etc */ 61103a8feaSLen Brown unsigned int genuine_intel; 62103a8feaSLen Brown unsigned int has_invariant_tsc; 63103a8feaSLen Brown unsigned int do_nehalem_platform_info; 64103a8feaSLen Brown unsigned int do_nehalem_turbo_ratio_limit; 656574a5d5SLen Brown unsigned int do_ivt_turbo_ratio_limit; 662f32edf1SLen Brown unsigned int extra_msr_offset32; 672f32edf1SLen Brown unsigned int extra_msr_offset64; 688e180f3cSLen Brown unsigned int extra_delta_offset32; 698e180f3cSLen Brown unsigned int extra_delta_offset64; 70103a8feaSLen Brown double bclk; 71103a8feaSLen Brown unsigned int show_pkg; 72103a8feaSLen Brown unsigned int show_core; 73103a8feaSLen Brown unsigned int show_cpu; 74c98d5d94SLen Brown unsigned int show_pkg_only; 75c98d5d94SLen Brown unsigned int show_core_only; 76c98d5d94SLen Brown char *output_buffer, *outp; 77103a8feaSLen Brown 78103a8feaSLen Brown int aperf_mperf_unstable; 79103a8feaSLen Brown int backwards_count; 80103a8feaSLen Brown char *progname; 81103a8feaSLen Brown 82c98d5d94SLen Brown cpu_set_t *cpu_present_set, *cpu_affinity_set; 83c98d5d94SLen Brown size_t cpu_present_setsize, cpu_affinity_setsize; 84c98d5d94SLen Brown 85c98d5d94SLen Brown struct thread_data { 86c98d5d94SLen Brown unsigned long long tsc; 87c98d5d94SLen Brown unsigned long long aperf; 88c98d5d94SLen Brown unsigned long long mperf; 89c98d5d94SLen Brown unsigned long long c1; /* derived */ 902f32edf1SLen Brown unsigned long long extra_msr64; 918e180f3cSLen Brown unsigned long long extra_delta64; 928e180f3cSLen Brown unsigned long long extra_msr32; 938e180f3cSLen Brown unsigned long long extra_delta32; 94c98d5d94SLen Brown unsigned int cpu_id; 95c98d5d94SLen Brown unsigned int flags; 96c98d5d94SLen Brown #define CPU_IS_FIRST_THREAD_IN_CORE 0x2 97c98d5d94SLen Brown #define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4 98c98d5d94SLen Brown } *thread_even, *thread_odd; 99c98d5d94SLen Brown 100c98d5d94SLen Brown struct core_data { 101c98d5d94SLen Brown unsigned long long c3; 102c98d5d94SLen Brown unsigned long long c6; 103c98d5d94SLen Brown unsigned long long c7; 104c98d5d94SLen Brown unsigned int core_id; 105c98d5d94SLen Brown } *core_even, *core_odd; 106c98d5d94SLen Brown 107c98d5d94SLen Brown struct pkg_data { 108c98d5d94SLen Brown unsigned long long pc2; 109c98d5d94SLen Brown unsigned long long pc3; 110c98d5d94SLen Brown unsigned long long pc6; 111c98d5d94SLen Brown unsigned long long pc7; 112c98d5d94SLen Brown unsigned int package_id; 113c98d5d94SLen Brown } *package_even, *package_odd; 114c98d5d94SLen Brown 115c98d5d94SLen Brown #define ODD_COUNTERS thread_odd, core_odd, package_odd 116c98d5d94SLen Brown #define EVEN_COUNTERS thread_even, core_even, package_even 117c98d5d94SLen Brown 118c98d5d94SLen Brown #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \ 119c98d5d94SLen Brown (thread_base + (pkg_no) * topo.num_cores_per_pkg * \ 120c98d5d94SLen Brown topo.num_threads_per_core + \ 121c98d5d94SLen Brown (core_no) * topo.num_threads_per_core + (thread_no)) 122c98d5d94SLen Brown #define GET_CORE(core_base, core_no, pkg_no) \ 123c98d5d94SLen Brown (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no)) 124c98d5d94SLen Brown #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no) 125c98d5d94SLen Brown 126c98d5d94SLen Brown struct system_summary { 127c98d5d94SLen Brown struct thread_data threads; 128c98d5d94SLen Brown struct core_data cores; 129c98d5d94SLen Brown struct pkg_data packages; 130c98d5d94SLen Brown } sum, average; 131c98d5d94SLen Brown 132c98d5d94SLen Brown 133c98d5d94SLen Brown struct topo_params { 134c98d5d94SLen Brown int num_packages; 135103a8feaSLen Brown int num_cpus; 136c98d5d94SLen Brown int num_cores; 137c98d5d94SLen Brown int max_cpu_num; 138c98d5d94SLen Brown int num_cores_per_pkg; 139c98d5d94SLen Brown int num_threads_per_core; 140c98d5d94SLen Brown } topo; 141103a8feaSLen Brown 142c98d5d94SLen Brown struct timeval tv_even, tv_odd, tv_delta; 143103a8feaSLen Brown 144c98d5d94SLen Brown void setup_all_buffers(void); 145103a8feaSLen Brown 146c98d5d94SLen Brown int cpu_is_not_present(int cpu) 147d15cf7c1SLen Brown { 148c98d5d94SLen Brown return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set); 149c98d5d94SLen Brown } 150c98d5d94SLen Brown /* 151c98d5d94SLen Brown * run func(thread, core, package) in topology order 152c98d5d94SLen Brown * skip non-present cpus 153c98d5d94SLen Brown */ 154c98d5d94SLen Brown 155c98d5d94SLen Brown int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *), 156c98d5d94SLen Brown struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base) 157c98d5d94SLen Brown { 158c98d5d94SLen Brown int retval, pkg_no, core_no, thread_no; 159c98d5d94SLen Brown 160c98d5d94SLen Brown for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { 161c98d5d94SLen Brown for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { 162c98d5d94SLen Brown for (thread_no = 0; thread_no < 163c98d5d94SLen Brown topo.num_threads_per_core; ++thread_no) { 164c98d5d94SLen Brown struct thread_data *t; 165c98d5d94SLen Brown struct core_data *c; 166c98d5d94SLen Brown struct pkg_data *p; 167c98d5d94SLen Brown 168c98d5d94SLen Brown t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); 169c98d5d94SLen Brown 170c98d5d94SLen Brown if (cpu_is_not_present(t->cpu_id)) 171c98d5d94SLen Brown continue; 172c98d5d94SLen Brown 173c98d5d94SLen Brown c = GET_CORE(core_base, core_no, pkg_no); 174c98d5d94SLen Brown p = GET_PKG(pkg_base, pkg_no); 175c98d5d94SLen Brown 176c98d5d94SLen Brown retval = func(t, c, p); 177c98d5d94SLen Brown if (retval) 178c98d5d94SLen Brown return retval; 179c98d5d94SLen Brown } 180c98d5d94SLen Brown } 181c98d5d94SLen Brown } 182d15cf7c1SLen Brown return 0; 183d15cf7c1SLen Brown } 184d15cf7c1SLen Brown 18588c3281fSLen Brown int cpu_migrate(int cpu) 18688c3281fSLen Brown { 187c98d5d94SLen Brown CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); 188c98d5d94SLen Brown CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set); 189c98d5d94SLen Brown if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1) 19088c3281fSLen Brown return -1; 19188c3281fSLen Brown else 19288c3281fSLen Brown return 0; 19388c3281fSLen Brown } 19488c3281fSLen Brown 19515aaa346SLen Brown int get_msr(int cpu, off_t offset, unsigned long long *msr) 196103a8feaSLen Brown { 197103a8feaSLen Brown ssize_t retval; 198103a8feaSLen Brown char pathname[32]; 199103a8feaSLen Brown int fd; 200103a8feaSLen Brown 201103a8feaSLen Brown sprintf(pathname, "/dev/cpu/%d/msr", cpu); 202103a8feaSLen Brown fd = open(pathname, O_RDONLY); 20315aaa346SLen Brown if (fd < 0) 20415aaa346SLen Brown return -1; 205103a8feaSLen Brown 20615aaa346SLen Brown retval = pread(fd, msr, sizeof *msr, offset); 207103a8feaSLen Brown close(fd); 20815aaa346SLen Brown 209d91bb17cSLen Brown if (retval != sizeof *msr) { 210d91bb17cSLen Brown fprintf(stderr, "%s offset 0x%zx read failed\n", pathname, offset); 21115aaa346SLen Brown return -1; 212d91bb17cSLen Brown } 21315aaa346SLen Brown 21415aaa346SLen Brown return 0; 215103a8feaSLen Brown } 216103a8feaSLen Brown 217a829eb4dSLen Brown void print_header(void) 218103a8feaSLen Brown { 219103a8feaSLen Brown if (show_pkg) 220c98d5d94SLen Brown outp += sprintf(outp, "pk"); 221e23da037SLen Brown if (show_pkg) 222c98d5d94SLen Brown outp += sprintf(outp, " "); 223103a8feaSLen Brown if (show_core) 224c98d5d94SLen Brown outp += sprintf(outp, "cor"); 225103a8feaSLen Brown if (show_cpu) 226c98d5d94SLen Brown outp += sprintf(outp, " CPU"); 227e23da037SLen Brown if (show_pkg || show_core || show_cpu) 228c98d5d94SLen Brown outp += sprintf(outp, " "); 229103a8feaSLen Brown if (do_nhm_cstates) 230c98d5d94SLen Brown outp += sprintf(outp, " %%c0"); 231103a8feaSLen Brown if (has_aperf) 232c98d5d94SLen Brown outp += sprintf(outp, " GHz"); 233c98d5d94SLen Brown outp += sprintf(outp, " TSC"); 2348e180f3cSLen Brown if (extra_delta_offset32) 235f9240813SLen Brown outp += sprintf(outp, " count 0x%03X", extra_delta_offset32); 2368e180f3cSLen Brown if (extra_delta_offset64) 237f9240813SLen Brown outp += sprintf(outp, " COUNT 0x%03X", extra_delta_offset64); 2382f32edf1SLen Brown if (extra_msr_offset32) 2398e180f3cSLen Brown outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32); 2402f32edf1SLen Brown if (extra_msr_offset64) 2418e180f3cSLen Brown outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64); 242103a8feaSLen Brown if (do_nhm_cstates) 243c98d5d94SLen Brown outp += sprintf(outp, " %%c1"); 244103a8feaSLen Brown if (do_nhm_cstates) 245c98d5d94SLen Brown outp += sprintf(outp, " %%c3"); 246103a8feaSLen Brown if (do_nhm_cstates) 247c98d5d94SLen Brown outp += sprintf(outp, " %%c6"); 248103a8feaSLen Brown if (do_snb_cstates) 249c98d5d94SLen Brown outp += sprintf(outp, " %%c7"); 250103a8feaSLen Brown if (do_snb_cstates) 251c98d5d94SLen Brown outp += sprintf(outp, " %%pc2"); 252103a8feaSLen Brown if (do_nhm_cstates) 253c98d5d94SLen Brown outp += sprintf(outp, " %%pc3"); 254103a8feaSLen Brown if (do_nhm_cstates) 255c98d5d94SLen Brown outp += sprintf(outp, " %%pc6"); 256103a8feaSLen Brown if (do_snb_cstates) 257c98d5d94SLen Brown outp += sprintf(outp, " %%pc7"); 258103a8feaSLen Brown 259c98d5d94SLen Brown outp += sprintf(outp, "\n"); 260103a8feaSLen Brown } 261103a8feaSLen Brown 262c98d5d94SLen Brown int dump_counters(struct thread_data *t, struct core_data *c, 263c98d5d94SLen Brown struct pkg_data *p) 264103a8feaSLen Brown { 265c98d5d94SLen Brown fprintf(stderr, "t %p, c %p, p %p\n", t, c, p); 266c98d5d94SLen Brown 267c98d5d94SLen Brown if (t) { 268c98d5d94SLen Brown fprintf(stderr, "CPU: %d flags 0x%x\n", t->cpu_id, t->flags); 269c98d5d94SLen Brown fprintf(stderr, "TSC: %016llX\n", t->tsc); 270c98d5d94SLen Brown fprintf(stderr, "aperf: %016llX\n", t->aperf); 271c98d5d94SLen Brown fprintf(stderr, "mperf: %016llX\n", t->mperf); 272c98d5d94SLen Brown fprintf(stderr, "c1: %016llX\n", t->c1); 2738e180f3cSLen Brown fprintf(stderr, "msr0x%x: %08llX\n", 2748e180f3cSLen Brown extra_delta_offset32, t->extra_delta32); 2758e180f3cSLen Brown fprintf(stderr, "msr0x%x: %016llX\n", 2768e180f3cSLen Brown extra_delta_offset64, t->extra_delta64); 2778e180f3cSLen Brown fprintf(stderr, "msr0x%x: %08llX\n", 2782f32edf1SLen Brown extra_msr_offset32, t->extra_msr32); 279c98d5d94SLen Brown fprintf(stderr, "msr0x%x: %016llX\n", 2802f32edf1SLen Brown extra_msr_offset64, t->extra_msr64); 281103a8feaSLen Brown } 282103a8feaSLen Brown 283c98d5d94SLen Brown if (c) { 284c98d5d94SLen Brown fprintf(stderr, "core: %d\n", c->core_id); 285c98d5d94SLen Brown fprintf(stderr, "c3: %016llX\n", c->c3); 286c98d5d94SLen Brown fprintf(stderr, "c6: %016llX\n", c->c6); 287c98d5d94SLen Brown fprintf(stderr, "c7: %016llX\n", c->c7); 288c98d5d94SLen Brown } 289103a8feaSLen Brown 290c98d5d94SLen Brown if (p) { 291c98d5d94SLen Brown fprintf(stderr, "package: %d\n", p->package_id); 292c98d5d94SLen Brown fprintf(stderr, "pc2: %016llX\n", p->pc2); 293c98d5d94SLen Brown fprintf(stderr, "pc3: %016llX\n", p->pc3); 294c98d5d94SLen Brown fprintf(stderr, "pc6: %016llX\n", p->pc6); 295c98d5d94SLen Brown fprintf(stderr, "pc7: %016llX\n", p->pc7); 296c98d5d94SLen Brown } 297c98d5d94SLen Brown return 0; 298103a8feaSLen Brown } 299103a8feaSLen Brown 300e23da037SLen Brown /* 301e23da037SLen Brown * column formatting convention & formats 302e23da037SLen Brown * package: "pk" 2 columns %2d 303e23da037SLen Brown * core: "cor" 3 columns %3d 304e23da037SLen Brown * CPU: "CPU" 3 columns %3d 305e23da037SLen Brown * GHz: "GHz" 3 columns %3.2 306e23da037SLen Brown * TSC: "TSC" 3 columns %3.2 307e23da037SLen Brown * percentage " %pc3" %6.2 308e23da037SLen Brown */ 309c98d5d94SLen Brown int format_counters(struct thread_data *t, struct core_data *c, 310c98d5d94SLen Brown struct pkg_data *p) 311103a8feaSLen Brown { 312103a8feaSLen Brown double interval_float; 313103a8feaSLen Brown 314c98d5d94SLen Brown /* if showing only 1st thread in core and this isn't one, bail out */ 315c98d5d94SLen Brown if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 316c98d5d94SLen Brown return 0; 317c98d5d94SLen Brown 318c98d5d94SLen Brown /* if showing only 1st thread in pkg and this isn't one, bail out */ 319c98d5d94SLen Brown if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 320c98d5d94SLen Brown return 0; 321c98d5d94SLen Brown 322103a8feaSLen Brown interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0; 323103a8feaSLen Brown 324c98d5d94SLen Brown /* topo columns, print blanks on 1st (average) line */ 325c98d5d94SLen Brown if (t == &average.threads) { 326103a8feaSLen Brown if (show_pkg) 327c98d5d94SLen Brown outp += sprintf(outp, " "); 328e23da037SLen Brown if (show_pkg && show_core) 329c98d5d94SLen Brown outp += sprintf(outp, " "); 330103a8feaSLen Brown if (show_core) 331c98d5d94SLen Brown outp += sprintf(outp, " "); 332103a8feaSLen Brown if (show_cpu) 333c98d5d94SLen Brown outp += sprintf(outp, " " " "); 334103a8feaSLen Brown } else { 335c98d5d94SLen Brown if (show_pkg) { 336c98d5d94SLen Brown if (p) 337c98d5d94SLen Brown outp += sprintf(outp, "%2d", p->package_id); 338c98d5d94SLen Brown else 339c98d5d94SLen Brown outp += sprintf(outp, " "); 340c98d5d94SLen Brown } 341e23da037SLen Brown if (show_pkg && show_core) 342c98d5d94SLen Brown outp += sprintf(outp, " "); 343c98d5d94SLen Brown if (show_core) { 344c98d5d94SLen Brown if (c) 345c98d5d94SLen Brown outp += sprintf(outp, "%3d", c->core_id); 346c98d5d94SLen Brown else 347c98d5d94SLen Brown outp += sprintf(outp, " "); 348c98d5d94SLen Brown } 349103a8feaSLen Brown if (show_cpu) 350c98d5d94SLen Brown outp += sprintf(outp, " %3d", t->cpu_id); 351103a8feaSLen Brown } 352103a8feaSLen Brown 353103a8feaSLen Brown /* %c0 */ 354103a8feaSLen Brown if (do_nhm_cstates) { 355e23da037SLen Brown if (show_pkg || show_core || show_cpu) 356c98d5d94SLen Brown outp += sprintf(outp, " "); 357103a8feaSLen Brown if (!skip_c0) 358c98d5d94SLen Brown outp += sprintf(outp, "%6.2f", 100.0 * t->mperf/t->tsc); 359103a8feaSLen Brown else 360c98d5d94SLen Brown outp += sprintf(outp, " ****"); 361103a8feaSLen Brown } 362103a8feaSLen Brown 363103a8feaSLen Brown /* GHz */ 364103a8feaSLen Brown if (has_aperf) { 365103a8feaSLen Brown if (!aperf_mperf_unstable) { 366c98d5d94SLen Brown outp += sprintf(outp, " %3.2f", 367c98d5d94SLen Brown 1.0 * t->tsc / units * t->aperf / 368c98d5d94SLen Brown t->mperf / interval_float); 369103a8feaSLen Brown } else { 370c98d5d94SLen Brown if (t->aperf > t->tsc || t->mperf > t->tsc) { 371c98d5d94SLen Brown outp += sprintf(outp, " ***"); 372103a8feaSLen Brown } else { 373c98d5d94SLen Brown outp += sprintf(outp, "%3.1f*", 374c98d5d94SLen Brown 1.0 * t->tsc / 375c98d5d94SLen Brown units * t->aperf / 376c98d5d94SLen Brown t->mperf / interval_float); 377103a8feaSLen Brown } 378103a8feaSLen Brown } 379103a8feaSLen Brown } 380103a8feaSLen Brown 381103a8feaSLen Brown /* TSC */ 382c98d5d94SLen Brown outp += sprintf(outp, "%5.2f", 1.0 * t->tsc/units/interval_float); 383103a8feaSLen Brown 3848e180f3cSLen Brown /* delta */ 3858e180f3cSLen Brown if (extra_delta_offset32) 3868e180f3cSLen Brown outp += sprintf(outp, " %11llu", t->extra_delta32); 3878e180f3cSLen Brown 3888e180f3cSLen Brown /* DELTA */ 3898e180f3cSLen Brown if (extra_delta_offset64) 3908e180f3cSLen Brown outp += sprintf(outp, " %11llu", t->extra_delta64); 3912f32edf1SLen Brown /* msr */ 3922f32edf1SLen Brown if (extra_msr_offset32) 3938e180f3cSLen Brown outp += sprintf(outp, " 0x%08llx", t->extra_msr32); 3942f32edf1SLen Brown 395130ff304SLen Brown /* MSR */ 3962f32edf1SLen Brown if (extra_msr_offset64) 3972f32edf1SLen Brown outp += sprintf(outp, " 0x%016llx", t->extra_msr64); 398130ff304SLen Brown 399103a8feaSLen Brown if (do_nhm_cstates) { 400103a8feaSLen Brown if (!skip_c1) 401c98d5d94SLen Brown outp += sprintf(outp, " %6.2f", 100.0 * t->c1/t->tsc); 402103a8feaSLen Brown else 403c98d5d94SLen Brown outp += sprintf(outp, " ****"); 404103a8feaSLen Brown } 405c98d5d94SLen Brown 406c98d5d94SLen Brown /* print per-core data only for 1st thread in core */ 407c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 408c98d5d94SLen Brown goto done; 409c98d5d94SLen Brown 410103a8feaSLen Brown if (do_nhm_cstates) 411c98d5d94SLen Brown outp += sprintf(outp, " %6.2f", 100.0 * c->c3/t->tsc); 412103a8feaSLen Brown if (do_nhm_cstates) 413c98d5d94SLen Brown outp += sprintf(outp, " %6.2f", 100.0 * c->c6/t->tsc); 414103a8feaSLen Brown if (do_snb_cstates) 415c98d5d94SLen Brown outp += sprintf(outp, " %6.2f", 100.0 * c->c7/t->tsc); 416c98d5d94SLen Brown 417c98d5d94SLen Brown /* print per-package data only for 1st core in package */ 418c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 419c98d5d94SLen Brown goto done; 420c98d5d94SLen Brown 421103a8feaSLen Brown if (do_snb_cstates) 422c98d5d94SLen Brown outp += sprintf(outp, " %6.2f", 100.0 * p->pc2/t->tsc); 423103a8feaSLen Brown if (do_nhm_cstates) 424c98d5d94SLen Brown outp += sprintf(outp, " %6.2f", 100.0 * p->pc3/t->tsc); 425103a8feaSLen Brown if (do_nhm_cstates) 426c98d5d94SLen Brown outp += sprintf(outp, " %6.2f", 100.0 * p->pc6/t->tsc); 427103a8feaSLen Brown if (do_snb_cstates) 428c98d5d94SLen Brown outp += sprintf(outp, " %6.2f", 100.0 * p->pc7/t->tsc); 429c98d5d94SLen Brown done: 430c98d5d94SLen Brown outp += sprintf(outp, "\n"); 431c98d5d94SLen Brown 432c98d5d94SLen Brown return 0; 433103a8feaSLen Brown } 434103a8feaSLen Brown 435c98d5d94SLen Brown void flush_stdout() 436103a8feaSLen Brown { 437c98d5d94SLen Brown fputs(output_buffer, stdout); 438c98d5d94SLen Brown outp = output_buffer; 439c98d5d94SLen Brown } 440c98d5d94SLen Brown void flush_stderr() 441c98d5d94SLen Brown { 442c98d5d94SLen Brown fputs(output_buffer, stderr); 443c98d5d94SLen Brown outp = output_buffer; 444c98d5d94SLen Brown } 445c98d5d94SLen Brown void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 446c98d5d94SLen Brown { 447e23da037SLen Brown static int printed; 448103a8feaSLen Brown 449e23da037SLen Brown if (!printed || !summary_only) 450103a8feaSLen Brown print_header(); 451103a8feaSLen Brown 452c98d5d94SLen Brown if (topo.num_cpus > 1) 453c98d5d94SLen Brown format_counters(&average.threads, &average.cores, 454c98d5d94SLen Brown &average.packages); 455103a8feaSLen Brown 456e23da037SLen Brown printed = 1; 457e23da037SLen Brown 458e23da037SLen Brown if (summary_only) 459e23da037SLen Brown return; 460e23da037SLen Brown 461c98d5d94SLen Brown for_all_cpus(format_counters, t, c, p); 462103a8feaSLen Brown } 463103a8feaSLen Brown 464c98d5d94SLen Brown void 465c98d5d94SLen Brown delta_package(struct pkg_data *new, struct pkg_data *old) 466103a8feaSLen Brown { 467c98d5d94SLen Brown old->pc2 = new->pc2 - old->pc2; 468c98d5d94SLen Brown old->pc3 = new->pc3 - old->pc3; 469c98d5d94SLen Brown old->pc6 = new->pc6 - old->pc6; 470c98d5d94SLen Brown old->pc7 = new->pc7 - old->pc7; 471103a8feaSLen Brown } 472103a8feaSLen Brown 473c98d5d94SLen Brown void 474c98d5d94SLen Brown delta_core(struct core_data *new, struct core_data *old) 475c98d5d94SLen Brown { 476c98d5d94SLen Brown old->c3 = new->c3 - old->c3; 477c98d5d94SLen Brown old->c6 = new->c6 - old->c6; 478c98d5d94SLen Brown old->c7 = new->c7 - old->c7; 479103a8feaSLen Brown } 480c98d5d94SLen Brown 481c3ae331dSLen Brown /* 482c3ae331dSLen Brown * old = new - old 483c3ae331dSLen Brown */ 484c98d5d94SLen Brown void 485c98d5d94SLen Brown delta_thread(struct thread_data *new, struct thread_data *old, 486c98d5d94SLen Brown struct core_data *core_delta) 487c98d5d94SLen Brown { 488c98d5d94SLen Brown old->tsc = new->tsc - old->tsc; 489c98d5d94SLen Brown 490103a8feaSLen Brown /* check for TSC < 1 Mcycles over interval */ 491c98d5d94SLen Brown if (old->tsc < (1000 * 1000)) { 492c98d5d94SLen Brown fprintf(stderr, "Insanely slow TSC rate, TSC stops in idle?\n"); 493c98d5d94SLen Brown fprintf(stderr, "You can disable all c-states by booting with \"idle=poll\"\n"); 494c98d5d94SLen Brown fprintf(stderr, "or just the deep ones with \"processor.max_cstate=1\"\n"); 495103a8feaSLen Brown exit(-3); 496103a8feaSLen Brown } 497103a8feaSLen Brown 498c98d5d94SLen Brown old->c1 = new->c1 - old->c1; 499c98d5d94SLen Brown 500c98d5d94SLen Brown if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) { 501c98d5d94SLen Brown old->aperf = new->aperf - old->aperf; 502c98d5d94SLen Brown old->mperf = new->mperf - old->mperf; 503c98d5d94SLen Brown } else { 504c98d5d94SLen Brown 505103a8feaSLen Brown if (!aperf_mperf_unstable) { 506103a8feaSLen Brown fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname); 507103a8feaSLen Brown fprintf(stderr, "* Frequency results do not cover entire interval *\n"); 508103a8feaSLen Brown fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n"); 509103a8feaSLen Brown 510103a8feaSLen Brown aperf_mperf_unstable = 1; 511103a8feaSLen Brown } 512103a8feaSLen Brown /* 513103a8feaSLen Brown * mperf delta is likely a huge "positive" number 514103a8feaSLen Brown * can not use it for calculating c0 time 515103a8feaSLen Brown */ 516103a8feaSLen Brown skip_c0 = 1; 517103a8feaSLen Brown skip_c1 = 1; 518103a8feaSLen Brown } 519103a8feaSLen Brown 520c98d5d94SLen Brown 521103a8feaSLen Brown /* 522c3ae331dSLen Brown * As counter collection is not atomic, 523c3ae331dSLen Brown * it is possible for mperf's non-halted cycles + idle states 524103a8feaSLen Brown * to exceed TSC's all cycles: show c1 = 0% in that case. 525103a8feaSLen Brown */ 526c3ae331dSLen Brown if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc) 527c98d5d94SLen Brown old->c1 = 0; 528c98d5d94SLen Brown else { 529c98d5d94SLen Brown /* normal case, derive c1 */ 530c98d5d94SLen Brown old->c1 = old->tsc - old->mperf - core_delta->c3 531c98d5d94SLen Brown - core_delta->c6 - core_delta->c7; 532c98d5d94SLen Brown } 533c3ae331dSLen Brown 534c98d5d94SLen Brown if (old->mperf == 0) { 535c3ae331dSLen Brown if (verbose > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id); 536c98d5d94SLen Brown old->mperf = 1; /* divide by 0 protection */ 537c98d5d94SLen Brown } 538103a8feaSLen Brown 5398e180f3cSLen Brown old->extra_delta32 = new->extra_delta32 - old->extra_delta32; 5408e180f3cSLen Brown old->extra_delta32 &= 0xFFFFFFFF; 5418e180f3cSLen Brown 5428e180f3cSLen Brown old->extra_delta64 = new->extra_delta64 - old->extra_delta64; 5438e180f3cSLen Brown 544103a8feaSLen Brown /* 5458e180f3cSLen Brown * Extra MSR is just a snapshot, simply copy latest w/o subtracting 546103a8feaSLen Brown */ 5472f32edf1SLen Brown old->extra_msr32 = new->extra_msr32; 5482f32edf1SLen Brown old->extra_msr64 = new->extra_msr64; 549103a8feaSLen Brown } 550c98d5d94SLen Brown 551c98d5d94SLen Brown int delta_cpu(struct thread_data *t, struct core_data *c, 552c98d5d94SLen Brown struct pkg_data *p, struct thread_data *t2, 553c98d5d94SLen Brown struct core_data *c2, struct pkg_data *p2) 554c98d5d94SLen Brown { 555c98d5d94SLen Brown /* calculate core delta only for 1st thread in core */ 556c98d5d94SLen Brown if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE) 557c98d5d94SLen Brown delta_core(c, c2); 558c98d5d94SLen Brown 559c98d5d94SLen Brown /* always calculate thread delta */ 560c98d5d94SLen Brown delta_thread(t, t2, c2); /* c2 is core delta */ 561c98d5d94SLen Brown 562c98d5d94SLen Brown /* calculate package delta only for 1st core in package */ 563c98d5d94SLen Brown if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE) 564c98d5d94SLen Brown delta_package(p, p2); 565c98d5d94SLen Brown 566103a8feaSLen Brown return 0; 567103a8feaSLen Brown } 568103a8feaSLen Brown 569c98d5d94SLen Brown void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 570103a8feaSLen Brown { 571c98d5d94SLen Brown t->tsc = 0; 572c98d5d94SLen Brown t->aperf = 0; 573c98d5d94SLen Brown t->mperf = 0; 574c98d5d94SLen Brown t->c1 = 0; 575103a8feaSLen Brown 5768e180f3cSLen Brown t->extra_delta32 = 0; 5778e180f3cSLen Brown t->extra_delta64 = 0; 5788e180f3cSLen Brown 579c98d5d94SLen Brown /* tells format_counters to dump all fields from this set */ 580c98d5d94SLen Brown t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE; 581c98d5d94SLen Brown 582c98d5d94SLen Brown c->c3 = 0; 583c98d5d94SLen Brown c->c6 = 0; 584c98d5d94SLen Brown c->c7 = 0; 585c98d5d94SLen Brown 586c98d5d94SLen Brown p->pc2 = 0; 587c98d5d94SLen Brown p->pc3 = 0; 588c98d5d94SLen Brown p->pc6 = 0; 589c98d5d94SLen Brown p->pc7 = 0; 590103a8feaSLen Brown } 591c98d5d94SLen Brown int sum_counters(struct thread_data *t, struct core_data *c, 592c98d5d94SLen Brown struct pkg_data *p) 593103a8feaSLen Brown { 594c98d5d94SLen Brown average.threads.tsc += t->tsc; 595c98d5d94SLen Brown average.threads.aperf += t->aperf; 596c98d5d94SLen Brown average.threads.mperf += t->mperf; 597c98d5d94SLen Brown average.threads.c1 += t->c1; 59815aaa346SLen Brown 5998e180f3cSLen Brown average.threads.extra_delta32 += t->extra_delta32; 6008e180f3cSLen Brown average.threads.extra_delta64 += t->extra_delta64; 6018e180f3cSLen Brown 602c98d5d94SLen Brown /* sum per-core values only for 1st thread in core */ 603c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 604c98d5d94SLen Brown return 0; 605c98d5d94SLen Brown 606c98d5d94SLen Brown average.cores.c3 += c->c3; 607c98d5d94SLen Brown average.cores.c6 += c->c6; 608c98d5d94SLen Brown average.cores.c7 += c->c7; 609c98d5d94SLen Brown 610c98d5d94SLen Brown /* sum per-pkg values only for 1st core in pkg */ 611c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 612c98d5d94SLen Brown return 0; 613c98d5d94SLen Brown 614c98d5d94SLen Brown average.packages.pc2 += p->pc2; 615c98d5d94SLen Brown average.packages.pc3 += p->pc3; 616c98d5d94SLen Brown average.packages.pc6 += p->pc6; 617c98d5d94SLen Brown average.packages.pc7 += p->pc7; 618c98d5d94SLen Brown 619c98d5d94SLen Brown return 0; 620c98d5d94SLen Brown } 621c98d5d94SLen Brown /* 622c98d5d94SLen Brown * sum the counters for all cpus in the system 623c98d5d94SLen Brown * compute the weighted average 624c98d5d94SLen Brown */ 625c98d5d94SLen Brown void compute_average(struct thread_data *t, struct core_data *c, 626c98d5d94SLen Brown struct pkg_data *p) 627c98d5d94SLen Brown { 628c98d5d94SLen Brown clear_counters(&average.threads, &average.cores, &average.packages); 629c98d5d94SLen Brown 630c98d5d94SLen Brown for_all_cpus(sum_counters, t, c, p); 631c98d5d94SLen Brown 632c98d5d94SLen Brown average.threads.tsc /= topo.num_cpus; 633c98d5d94SLen Brown average.threads.aperf /= topo.num_cpus; 634c98d5d94SLen Brown average.threads.mperf /= topo.num_cpus; 635c98d5d94SLen Brown average.threads.c1 /= topo.num_cpus; 636c98d5d94SLen Brown 6378e180f3cSLen Brown average.threads.extra_delta32 /= topo.num_cpus; 6388e180f3cSLen Brown average.threads.extra_delta32 &= 0xFFFFFFFF; 6398e180f3cSLen Brown 6408e180f3cSLen Brown average.threads.extra_delta64 /= topo.num_cpus; 6418e180f3cSLen Brown 642c98d5d94SLen Brown average.cores.c3 /= topo.num_cores; 643c98d5d94SLen Brown average.cores.c6 /= topo.num_cores; 644c98d5d94SLen Brown average.cores.c7 /= topo.num_cores; 645c98d5d94SLen Brown 646c98d5d94SLen Brown average.packages.pc2 /= topo.num_packages; 647c98d5d94SLen Brown average.packages.pc3 /= topo.num_packages; 648c98d5d94SLen Brown average.packages.pc6 /= topo.num_packages; 649c98d5d94SLen Brown average.packages.pc7 /= topo.num_packages; 650c98d5d94SLen Brown } 651c98d5d94SLen Brown 652c98d5d94SLen Brown static unsigned long long rdtsc(void) 653c98d5d94SLen Brown { 654c98d5d94SLen Brown unsigned int low, high; 655c98d5d94SLen Brown 656c98d5d94SLen Brown asm volatile("rdtsc" : "=a" (low), "=d" (high)); 657c98d5d94SLen Brown 658c98d5d94SLen Brown return low | ((unsigned long long)high) << 32; 659c98d5d94SLen Brown } 660c98d5d94SLen Brown 661c98d5d94SLen Brown 662c98d5d94SLen Brown /* 663c98d5d94SLen Brown * get_counters(...) 664c98d5d94SLen Brown * migrate to cpu 665c98d5d94SLen Brown * acquire and record local counters for that cpu 666c98d5d94SLen Brown */ 667c98d5d94SLen Brown int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 668c98d5d94SLen Brown { 669c98d5d94SLen Brown int cpu = t->cpu_id; 670c98d5d94SLen Brown 671c98d5d94SLen Brown if (cpu_migrate(cpu)) 67215aaa346SLen Brown return -1; 67315aaa346SLen Brown 674c98d5d94SLen Brown t->tsc = rdtsc(); /* we are running on local CPU of interest */ 67515aaa346SLen Brown 67615aaa346SLen Brown if (has_aperf) { 677c98d5d94SLen Brown if (get_msr(cpu, MSR_APERF, &t->aperf)) 678c98d5d94SLen Brown return -3; 679c98d5d94SLen Brown if (get_msr(cpu, MSR_MPERF, &t->mperf)) 680c98d5d94SLen Brown return -4; 68188c3281fSLen Brown } 68288c3281fSLen Brown 6838e180f3cSLen Brown if (extra_delta_offset32) { 6848e180f3cSLen Brown if (get_msr(cpu, extra_delta_offset32, &t->extra_delta32)) 6852f32edf1SLen Brown return -5; 6868e180f3cSLen Brown t->extra_delta32 &= 0xFFFFFFFF; 6878e180f3cSLen Brown } 6888e180f3cSLen Brown 6898e180f3cSLen Brown if (extra_delta_offset64) 6908e180f3cSLen Brown if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64)) 6918e180f3cSLen Brown return -5; 6928e180f3cSLen Brown 6938e180f3cSLen Brown if (extra_msr_offset32) { 6948e180f3cSLen Brown if (get_msr(cpu, extra_msr_offset32, &t->extra_msr32)) 6958e180f3cSLen Brown return -5; 6968e180f3cSLen Brown t->extra_msr32 &= 0xFFFFFFFF; 6978e180f3cSLen Brown } 6982f32edf1SLen Brown 6992f32edf1SLen Brown if (extra_msr_offset64) 7002f32edf1SLen Brown if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64)) 701c98d5d94SLen Brown return -5; 702c98d5d94SLen Brown 703c98d5d94SLen Brown /* collect core counters only for 1st thread in core */ 704c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 705c98d5d94SLen Brown return 0; 706c98d5d94SLen Brown 70715aaa346SLen Brown if (do_nhm_cstates) { 708c98d5d94SLen Brown if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3)) 709c98d5d94SLen Brown return -6; 710c98d5d94SLen Brown if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6)) 711c98d5d94SLen Brown return -7; 712103a8feaSLen Brown } 71315aaa346SLen Brown 71415aaa346SLen Brown if (do_snb_cstates) 715c98d5d94SLen Brown if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7)) 716c98d5d94SLen Brown return -8; 717c98d5d94SLen Brown 718c98d5d94SLen Brown /* collect package counters only for 1st core in package */ 719c98d5d94SLen Brown if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 720c98d5d94SLen Brown return 0; 72115aaa346SLen Brown 72215aaa346SLen Brown if (do_nhm_cstates) { 723c98d5d94SLen Brown if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3)) 724c98d5d94SLen Brown return -9; 725c98d5d94SLen Brown if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6)) 726c98d5d94SLen Brown return -10; 72715aaa346SLen Brown } 72815aaa346SLen Brown if (do_snb_cstates) { 729c98d5d94SLen Brown if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2)) 730c98d5d94SLen Brown return -11; 731c98d5d94SLen Brown if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7)) 732c98d5d94SLen Brown return -12; 73315aaa346SLen Brown } 73415aaa346SLen Brown return 0; 735103a8feaSLen Brown } 736103a8feaSLen Brown 737c98d5d94SLen Brown void print_verbose_header(void) 738103a8feaSLen Brown { 739103a8feaSLen Brown unsigned long long msr; 740103a8feaSLen Brown unsigned int ratio; 741103a8feaSLen Brown 742103a8feaSLen Brown if (!do_nehalem_platform_info) 743103a8feaSLen Brown return; 744103a8feaSLen Brown 74515aaa346SLen Brown get_msr(0, MSR_NEHALEM_PLATFORM_INFO, &msr); 746103a8feaSLen Brown 7476574a5d5SLen Brown if (verbose > 1) 7486574a5d5SLen Brown fprintf(stderr, "MSR_NEHALEM_PLATFORM_INFO: 0x%llx\n", msr); 7496574a5d5SLen Brown 750103a8feaSLen Brown ratio = (msr >> 40) & 0xFF; 751103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n", 752103a8feaSLen Brown ratio, bclk, ratio * bclk); 753103a8feaSLen Brown 754103a8feaSLen Brown ratio = (msr >> 8) & 0xFF; 755103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n", 756103a8feaSLen Brown ratio, bclk, ratio * bclk); 757103a8feaSLen Brown 7586574a5d5SLen Brown if (!do_ivt_turbo_ratio_limit) 7596574a5d5SLen Brown goto print_nhm_turbo_ratio_limits; 7606574a5d5SLen Brown 7616574a5d5SLen Brown get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr); 7626574a5d5SLen Brown 763103a8feaSLen Brown if (verbose > 1) 7646574a5d5SLen Brown fprintf(stderr, "MSR_IVT_TURBO_RATIO_LIMIT: 0x%llx\n", msr); 7656574a5d5SLen Brown 7666574a5d5SLen Brown ratio = (msr >> 56) & 0xFF; 7676574a5d5SLen Brown if (ratio) 7686574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n", 7696574a5d5SLen Brown ratio, bclk, ratio * bclk); 7706574a5d5SLen Brown 7716574a5d5SLen Brown ratio = (msr >> 48) & 0xFF; 7726574a5d5SLen Brown if (ratio) 7736574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n", 7746574a5d5SLen Brown ratio, bclk, ratio * bclk); 7756574a5d5SLen Brown 7766574a5d5SLen Brown ratio = (msr >> 40) & 0xFF; 7776574a5d5SLen Brown if (ratio) 7786574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n", 7796574a5d5SLen Brown ratio, bclk, ratio * bclk); 7806574a5d5SLen Brown 7816574a5d5SLen Brown ratio = (msr >> 32) & 0xFF; 7826574a5d5SLen Brown if (ratio) 7836574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n", 7846574a5d5SLen Brown ratio, bclk, ratio * bclk); 7856574a5d5SLen Brown 7866574a5d5SLen Brown ratio = (msr >> 24) & 0xFF; 7876574a5d5SLen Brown if (ratio) 7886574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n", 7896574a5d5SLen Brown ratio, bclk, ratio * bclk); 7906574a5d5SLen Brown 7916574a5d5SLen Brown ratio = (msr >> 16) & 0xFF; 7926574a5d5SLen Brown if (ratio) 7936574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n", 7946574a5d5SLen Brown ratio, bclk, ratio * bclk); 7956574a5d5SLen Brown 7966574a5d5SLen Brown ratio = (msr >> 8) & 0xFF; 7976574a5d5SLen Brown if (ratio) 7986574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n", 7996574a5d5SLen Brown ratio, bclk, ratio * bclk); 8006574a5d5SLen Brown 8016574a5d5SLen Brown ratio = (msr >> 0) & 0xFF; 8026574a5d5SLen Brown if (ratio) 8036574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n", 8046574a5d5SLen Brown ratio, bclk, ratio * bclk); 8056574a5d5SLen Brown 8066574a5d5SLen Brown print_nhm_turbo_ratio_limits: 807103a8feaSLen Brown 808103a8feaSLen Brown if (!do_nehalem_turbo_ratio_limit) 809103a8feaSLen Brown return; 810103a8feaSLen Brown 81115aaa346SLen Brown get_msr(0, MSR_NEHALEM_TURBO_RATIO_LIMIT, &msr); 812103a8feaSLen Brown 8136574a5d5SLen Brown if (verbose > 1) 8146574a5d5SLen Brown fprintf(stderr, "MSR_NEHALEM_TURBO_RATIO_LIMIT: 0x%llx\n", msr); 8156574a5d5SLen Brown 8166574a5d5SLen Brown ratio = (msr >> 56) & 0xFF; 8176574a5d5SLen Brown if (ratio) 8186574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n", 8196574a5d5SLen Brown ratio, bclk, ratio * bclk); 8206574a5d5SLen Brown 8216574a5d5SLen Brown ratio = (msr >> 48) & 0xFF; 8226574a5d5SLen Brown if (ratio) 8236574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n", 8246574a5d5SLen Brown ratio, bclk, ratio * bclk); 8256574a5d5SLen Brown 8266574a5d5SLen Brown ratio = (msr >> 40) & 0xFF; 8276574a5d5SLen Brown if (ratio) 8286574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n", 8296574a5d5SLen Brown ratio, bclk, ratio * bclk); 8306574a5d5SLen Brown 8316574a5d5SLen Brown ratio = (msr >> 32) & 0xFF; 8326574a5d5SLen Brown if (ratio) 8336574a5d5SLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n", 8346574a5d5SLen Brown ratio, bclk, ratio * bclk); 8356574a5d5SLen Brown 836103a8feaSLen Brown ratio = (msr >> 24) & 0xFF; 837103a8feaSLen Brown if (ratio) 838103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", 839103a8feaSLen Brown ratio, bclk, ratio * bclk); 840103a8feaSLen Brown 841103a8feaSLen Brown ratio = (msr >> 16) & 0xFF; 842103a8feaSLen Brown if (ratio) 843103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", 844103a8feaSLen Brown ratio, bclk, ratio * bclk); 845103a8feaSLen Brown 846103a8feaSLen Brown ratio = (msr >> 8) & 0xFF; 847103a8feaSLen Brown if (ratio) 848103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", 849103a8feaSLen Brown ratio, bclk, ratio * bclk); 850103a8feaSLen Brown 851103a8feaSLen Brown ratio = (msr >> 0) & 0xFF; 852103a8feaSLen Brown if (ratio) 853103a8feaSLen Brown fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", 854103a8feaSLen Brown ratio, bclk, ratio * bclk); 855103a8feaSLen Brown } 856103a8feaSLen Brown 857c98d5d94SLen Brown void free_all_buffers(void) 858103a8feaSLen Brown { 859c98d5d94SLen Brown CPU_FREE(cpu_present_set); 860c98d5d94SLen Brown cpu_present_set = NULL; 861c98d5d94SLen Brown cpu_present_set = 0; 862103a8feaSLen Brown 863c98d5d94SLen Brown CPU_FREE(cpu_affinity_set); 864c98d5d94SLen Brown cpu_affinity_set = NULL; 865c98d5d94SLen Brown cpu_affinity_setsize = 0; 866103a8feaSLen Brown 867c98d5d94SLen Brown free(thread_even); 868c98d5d94SLen Brown free(core_even); 869c98d5d94SLen Brown free(package_even); 870103a8feaSLen Brown 871c98d5d94SLen Brown thread_even = NULL; 872c98d5d94SLen Brown core_even = NULL; 873c98d5d94SLen Brown package_even = NULL; 874103a8feaSLen Brown 875c98d5d94SLen Brown free(thread_odd); 876c98d5d94SLen Brown free(core_odd); 877c98d5d94SLen Brown free(package_odd); 878103a8feaSLen Brown 879c98d5d94SLen Brown thread_odd = NULL; 880c98d5d94SLen Brown core_odd = NULL; 881c98d5d94SLen Brown package_odd = NULL; 882103a8feaSLen Brown 883c98d5d94SLen Brown free(output_buffer); 884c98d5d94SLen Brown output_buffer = NULL; 885c98d5d94SLen Brown outp = NULL; 886103a8feaSLen Brown } 887103a8feaSLen Brown 888103a8feaSLen Brown /* 889c98d5d94SLen Brown * cpu_is_first_sibling_in_core(cpu) 890c98d5d94SLen Brown * return 1 if given CPU is 1st HT sibling in the core 891103a8feaSLen Brown */ 892c98d5d94SLen Brown int cpu_is_first_sibling_in_core(int cpu) 893103a8feaSLen Brown { 894c98d5d94SLen Brown char path[64]; 895c98d5d94SLen Brown FILE *filep; 896c98d5d94SLen Brown int first_cpu; 897103a8feaSLen Brown 898c98d5d94SLen Brown sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); 899c98d5d94SLen Brown filep = fopen(path, "r"); 900c98d5d94SLen Brown if (filep == NULL) { 901c98d5d94SLen Brown perror(path); 902103a8feaSLen Brown exit(1); 903103a8feaSLen Brown } 904c98d5d94SLen Brown fscanf(filep, "%d", &first_cpu); 905c98d5d94SLen Brown fclose(filep); 906c98d5d94SLen Brown return (cpu == first_cpu); 907c98d5d94SLen Brown } 908103a8feaSLen Brown 909c98d5d94SLen Brown /* 910c98d5d94SLen Brown * cpu_is_first_core_in_package(cpu) 911c98d5d94SLen Brown * return 1 if given CPU is 1st core in package 912c98d5d94SLen Brown */ 913c98d5d94SLen Brown int cpu_is_first_core_in_package(int cpu) 914c98d5d94SLen Brown { 915c98d5d94SLen Brown char path[64]; 916c98d5d94SLen Brown FILE *filep; 917c98d5d94SLen Brown int first_cpu; 918c98d5d94SLen Brown 919c98d5d94SLen Brown sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu); 920c98d5d94SLen Brown filep = fopen(path, "r"); 921c98d5d94SLen Brown if (filep == NULL) { 922c98d5d94SLen Brown perror(path); 923103a8feaSLen Brown exit(1); 924103a8feaSLen Brown } 925c98d5d94SLen Brown fscanf(filep, "%d", &first_cpu); 926c98d5d94SLen Brown fclose(filep); 927c98d5d94SLen Brown return (cpu == first_cpu); 928103a8feaSLen Brown } 929103a8feaSLen Brown 930103a8feaSLen Brown int get_physical_package_id(int cpu) 931103a8feaSLen Brown { 932c98d5d94SLen Brown char path[80]; 933103a8feaSLen Brown FILE *filep; 934103a8feaSLen Brown int pkg; 935103a8feaSLen Brown 936103a8feaSLen Brown sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu); 937103a8feaSLen Brown filep = fopen(path, "r"); 938103a8feaSLen Brown if (filep == NULL) { 939103a8feaSLen Brown perror(path); 940103a8feaSLen Brown exit(1); 941103a8feaSLen Brown } 942103a8feaSLen Brown fscanf(filep, "%d", &pkg); 943103a8feaSLen Brown fclose(filep); 944103a8feaSLen Brown return pkg; 945103a8feaSLen Brown } 946103a8feaSLen Brown 947103a8feaSLen Brown int get_core_id(int cpu) 948103a8feaSLen Brown { 949c98d5d94SLen Brown char path[80]; 950103a8feaSLen Brown FILE *filep; 951103a8feaSLen Brown int core; 952103a8feaSLen Brown 953103a8feaSLen Brown sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); 954103a8feaSLen Brown filep = fopen(path, "r"); 955103a8feaSLen Brown if (filep == NULL) { 956103a8feaSLen Brown perror(path); 957103a8feaSLen Brown exit(1); 958103a8feaSLen Brown } 959103a8feaSLen Brown fscanf(filep, "%d", &core); 960103a8feaSLen Brown fclose(filep); 961103a8feaSLen Brown return core; 962103a8feaSLen Brown } 963103a8feaSLen Brown 964c98d5d94SLen Brown int get_num_ht_siblings(int cpu) 965c98d5d94SLen Brown { 966c98d5d94SLen Brown char path[80]; 967c98d5d94SLen Brown FILE *filep; 968c98d5d94SLen Brown int sib1, sib2; 969c98d5d94SLen Brown int matches; 970c98d5d94SLen Brown char character; 971c98d5d94SLen Brown 972c98d5d94SLen Brown sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); 973c98d5d94SLen Brown filep = fopen(path, "r"); 974c98d5d94SLen Brown if (filep == NULL) { 975c98d5d94SLen Brown perror(path); 976c98d5d94SLen Brown exit(1); 977c98d5d94SLen Brown } 978103a8feaSLen Brown /* 979c98d5d94SLen Brown * file format: 980c98d5d94SLen Brown * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4) 981c98d5d94SLen Brown * otherwinse 1 sibling (self). 982c98d5d94SLen Brown */ 983c98d5d94SLen Brown matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2); 984c98d5d94SLen Brown 985c98d5d94SLen Brown fclose(filep); 986c98d5d94SLen Brown 987c98d5d94SLen Brown if (matches == 3) 988c98d5d94SLen Brown return 2; 989c98d5d94SLen Brown else 990c98d5d94SLen Brown return 1; 991c98d5d94SLen Brown } 992c98d5d94SLen Brown 993c98d5d94SLen Brown /* 994c98d5d94SLen Brown * run func(thread, core, package) in topology order 995c98d5d94SLen Brown * skip non-present cpus 996103a8feaSLen Brown */ 997103a8feaSLen Brown 998c98d5d94SLen Brown int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *, 999c98d5d94SLen Brown struct pkg_data *, struct thread_data *, struct core_data *, 1000c98d5d94SLen Brown struct pkg_data *), struct thread_data *thread_base, 1001c98d5d94SLen Brown struct core_data *core_base, struct pkg_data *pkg_base, 1002c98d5d94SLen Brown struct thread_data *thread_base2, struct core_data *core_base2, 1003c98d5d94SLen Brown struct pkg_data *pkg_base2) 1004c98d5d94SLen Brown { 1005c98d5d94SLen Brown int retval, pkg_no, core_no, thread_no; 1006c98d5d94SLen Brown 1007c98d5d94SLen Brown for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { 1008c98d5d94SLen Brown for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { 1009c98d5d94SLen Brown for (thread_no = 0; thread_no < 1010c98d5d94SLen Brown topo.num_threads_per_core; ++thread_no) { 1011c98d5d94SLen Brown struct thread_data *t, *t2; 1012c98d5d94SLen Brown struct core_data *c, *c2; 1013c98d5d94SLen Brown struct pkg_data *p, *p2; 1014c98d5d94SLen Brown 1015c98d5d94SLen Brown t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); 1016c98d5d94SLen Brown 1017c98d5d94SLen Brown if (cpu_is_not_present(t->cpu_id)) 1018c98d5d94SLen Brown continue; 1019c98d5d94SLen Brown 1020c98d5d94SLen Brown t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no); 1021c98d5d94SLen Brown 1022c98d5d94SLen Brown c = GET_CORE(core_base, core_no, pkg_no); 1023c98d5d94SLen Brown c2 = GET_CORE(core_base2, core_no, pkg_no); 1024c98d5d94SLen Brown 1025c98d5d94SLen Brown p = GET_PKG(pkg_base, pkg_no); 1026c98d5d94SLen Brown p2 = GET_PKG(pkg_base2, pkg_no); 1027c98d5d94SLen Brown 1028c98d5d94SLen Brown retval = func(t, c, p, t2, c2, p2); 1029c98d5d94SLen Brown if (retval) 1030c98d5d94SLen Brown return retval; 1031c98d5d94SLen Brown } 1032c98d5d94SLen Brown } 1033c98d5d94SLen Brown } 1034c98d5d94SLen Brown return 0; 1035c98d5d94SLen Brown } 1036c98d5d94SLen Brown 1037c98d5d94SLen Brown /* 1038c98d5d94SLen Brown * run func(cpu) on every cpu in /proc/stat 1039c98d5d94SLen Brown * return max_cpu number 1040c98d5d94SLen Brown */ 1041c98d5d94SLen Brown int for_all_proc_cpus(int (func)(int)) 1042103a8feaSLen Brown { 1043103a8feaSLen Brown FILE *fp; 1044c98d5d94SLen Brown int cpu_num; 1045103a8feaSLen Brown int retval; 1046103a8feaSLen Brown 1047103a8feaSLen Brown fp = fopen(proc_stat, "r"); 1048103a8feaSLen Brown if (fp == NULL) { 1049103a8feaSLen Brown perror(proc_stat); 1050103a8feaSLen Brown exit(1); 1051103a8feaSLen Brown } 1052103a8feaSLen Brown 1053103a8feaSLen Brown retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n"); 1054103a8feaSLen Brown if (retval != 0) { 1055103a8feaSLen Brown perror("/proc/stat format"); 1056103a8feaSLen Brown exit(1); 1057103a8feaSLen Brown } 1058103a8feaSLen Brown 1059c98d5d94SLen Brown while (1) { 1060c98d5d94SLen Brown retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num); 1061103a8feaSLen Brown if (retval != 1) 1062103a8feaSLen Brown break; 1063103a8feaSLen Brown 1064c98d5d94SLen Brown retval = func(cpu_num); 1065c98d5d94SLen Brown if (retval) { 1066c98d5d94SLen Brown fclose(fp); 1067c98d5d94SLen Brown return(retval); 1068c98d5d94SLen Brown } 1069103a8feaSLen Brown } 1070103a8feaSLen Brown fclose(fp); 1071c98d5d94SLen Brown return 0; 1072103a8feaSLen Brown } 1073103a8feaSLen Brown 1074103a8feaSLen Brown void re_initialize(void) 1075103a8feaSLen Brown { 1076c98d5d94SLen Brown free_all_buffers(); 1077c98d5d94SLen Brown setup_all_buffers(); 1078c98d5d94SLen Brown printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus); 1079103a8feaSLen Brown } 1080103a8feaSLen Brown 1081c98d5d94SLen Brown 1082103a8feaSLen Brown /* 1083c98d5d94SLen Brown * count_cpus() 1084c98d5d94SLen Brown * remember the last one seen, it will be the max 1085103a8feaSLen Brown */ 1086c98d5d94SLen Brown int count_cpus(int cpu) 1087103a8feaSLen Brown { 1088c98d5d94SLen Brown if (topo.max_cpu_num < cpu) 1089c98d5d94SLen Brown topo.max_cpu_num = cpu; 1090103a8feaSLen Brown 1091c98d5d94SLen Brown topo.num_cpus += 1; 1092c98d5d94SLen Brown return 0; 1093103a8feaSLen Brown } 1094c98d5d94SLen Brown int mark_cpu_present(int cpu) 1095c98d5d94SLen Brown { 1096c98d5d94SLen Brown CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set); 109715aaa346SLen Brown return 0; 1098103a8feaSLen Brown } 1099103a8feaSLen Brown 1100103a8feaSLen Brown void turbostat_loop() 1101103a8feaSLen Brown { 1102c98d5d94SLen Brown int retval; 1103c98d5d94SLen Brown 1104103a8feaSLen Brown restart: 1105c98d5d94SLen Brown retval = for_all_cpus(get_counters, EVEN_COUNTERS); 1106d91bb17cSLen Brown if (retval < -1) { 1107d91bb17cSLen Brown exit(retval); 1108d91bb17cSLen Brown } else if (retval == -1) { 1109c98d5d94SLen Brown re_initialize(); 1110c98d5d94SLen Brown goto restart; 1111c98d5d94SLen Brown } 1112103a8feaSLen Brown gettimeofday(&tv_even, (struct timezone *)NULL); 1113103a8feaSLen Brown 1114103a8feaSLen Brown while (1) { 1115c98d5d94SLen Brown if (for_all_proc_cpus(cpu_is_not_present)) { 1116103a8feaSLen Brown re_initialize(); 1117103a8feaSLen Brown goto restart; 1118103a8feaSLen Brown } 1119103a8feaSLen Brown sleep(interval_sec); 1120c98d5d94SLen Brown retval = for_all_cpus(get_counters, ODD_COUNTERS); 1121d91bb17cSLen Brown if (retval < -1) { 1122d91bb17cSLen Brown exit(retval); 1123d91bb17cSLen Brown } else if (retval == -1) { 112415aaa346SLen Brown re_initialize(); 112515aaa346SLen Brown goto restart; 112615aaa346SLen Brown } 1127103a8feaSLen Brown gettimeofday(&tv_odd, (struct timezone *)NULL); 1128103a8feaSLen Brown timersub(&tv_odd, &tv_even, &tv_delta); 1129c98d5d94SLen Brown for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); 1130c98d5d94SLen Brown compute_average(EVEN_COUNTERS); 1131c98d5d94SLen Brown format_all_counters(EVEN_COUNTERS); 1132c98d5d94SLen Brown flush_stdout(); 113315aaa346SLen Brown sleep(interval_sec); 1134c98d5d94SLen Brown retval = for_all_cpus(get_counters, EVEN_COUNTERS); 1135d91bb17cSLen Brown if (retval < -1) { 1136d91bb17cSLen Brown exit(retval); 1137d91bb17cSLen Brown } else if (retval == -1) { 1138103a8feaSLen Brown re_initialize(); 1139103a8feaSLen Brown goto restart; 1140103a8feaSLen Brown } 1141103a8feaSLen Brown gettimeofday(&tv_even, (struct timezone *)NULL); 1142103a8feaSLen Brown timersub(&tv_even, &tv_odd, &tv_delta); 1143c98d5d94SLen Brown for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS); 1144c98d5d94SLen Brown compute_average(ODD_COUNTERS); 1145c98d5d94SLen Brown format_all_counters(ODD_COUNTERS); 1146c98d5d94SLen Brown flush_stdout(); 1147103a8feaSLen Brown } 1148103a8feaSLen Brown } 1149103a8feaSLen Brown 1150103a8feaSLen Brown void check_dev_msr() 1151103a8feaSLen Brown { 1152103a8feaSLen Brown struct stat sb; 1153103a8feaSLen Brown 1154103a8feaSLen Brown if (stat("/dev/cpu/0/msr", &sb)) { 1155103a8feaSLen Brown fprintf(stderr, "no /dev/cpu/0/msr\n"); 1156103a8feaSLen Brown fprintf(stderr, "Try \"# modprobe msr\"\n"); 1157103a8feaSLen Brown exit(-5); 1158103a8feaSLen Brown } 1159103a8feaSLen Brown } 1160103a8feaSLen Brown 1161103a8feaSLen Brown void check_super_user() 1162103a8feaSLen Brown { 1163103a8feaSLen Brown if (getuid() != 0) { 1164103a8feaSLen Brown fprintf(stderr, "must be root\n"); 1165103a8feaSLen Brown exit(-6); 1166103a8feaSLen Brown } 1167103a8feaSLen Brown } 1168103a8feaSLen Brown 1169103a8feaSLen Brown int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model) 1170103a8feaSLen Brown { 1171103a8feaSLen Brown if (!genuine_intel) 1172103a8feaSLen Brown return 0; 1173103a8feaSLen Brown 1174103a8feaSLen Brown if (family != 6) 1175103a8feaSLen Brown return 0; 1176103a8feaSLen Brown 1177103a8feaSLen Brown switch (model) { 1178103a8feaSLen Brown case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */ 1179103a8feaSLen Brown case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */ 1180103a8feaSLen Brown case 0x1F: /* Core i7 and i5 Processor - Nehalem */ 1181103a8feaSLen Brown case 0x25: /* Westmere Client - Clarkdale, Arrandale */ 1182103a8feaSLen Brown case 0x2C: /* Westmere EP - Gulftown */ 1183103a8feaSLen Brown case 0x2A: /* SNB */ 1184103a8feaSLen Brown case 0x2D: /* SNB Xeon */ 1185553575f1SLen Brown case 0x3A: /* IVB */ 11861300651bSLen Brown case 0x3E: /* IVB Xeon */ 1187103a8feaSLen Brown return 1; 1188103a8feaSLen Brown case 0x2E: /* Nehalem-EX Xeon - Beckton */ 1189103a8feaSLen Brown case 0x2F: /* Westmere-EX Xeon - Eagleton */ 1190103a8feaSLen Brown default: 1191103a8feaSLen Brown return 0; 1192103a8feaSLen Brown } 1193103a8feaSLen Brown } 11946574a5d5SLen Brown int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model) 11956574a5d5SLen Brown { 11966574a5d5SLen Brown if (!genuine_intel) 11976574a5d5SLen Brown return 0; 11986574a5d5SLen Brown 11996574a5d5SLen Brown if (family != 6) 12006574a5d5SLen Brown return 0; 12016574a5d5SLen Brown 12026574a5d5SLen Brown switch (model) { 12036574a5d5SLen Brown case 0x3E: /* IVB Xeon */ 12046574a5d5SLen Brown return 1; 12056574a5d5SLen Brown default: 12066574a5d5SLen Brown return 0; 12076574a5d5SLen Brown } 12086574a5d5SLen Brown } 12096574a5d5SLen Brown 1210103a8feaSLen Brown 1211103a8feaSLen Brown int is_snb(unsigned int family, unsigned int model) 1212103a8feaSLen Brown { 1213103a8feaSLen Brown if (!genuine_intel) 1214103a8feaSLen Brown return 0; 1215103a8feaSLen Brown 1216103a8feaSLen Brown switch (model) { 1217103a8feaSLen Brown case 0x2A: 1218103a8feaSLen Brown case 0x2D: 1219650a37f3SLen Brown case 0x3A: /* IVB */ 12201300651bSLen Brown case 0x3E: /* IVB Xeon */ 1221103a8feaSLen Brown return 1; 1222103a8feaSLen Brown } 1223103a8feaSLen Brown return 0; 1224103a8feaSLen Brown } 1225103a8feaSLen Brown 1226103a8feaSLen Brown double discover_bclk(unsigned int family, unsigned int model) 1227103a8feaSLen Brown { 1228103a8feaSLen Brown if (is_snb(family, model)) 1229103a8feaSLen Brown return 100.00; 1230103a8feaSLen Brown else 1231103a8feaSLen Brown return 133.33; 1232103a8feaSLen Brown } 1233103a8feaSLen Brown 1234103a8feaSLen Brown void check_cpuid() 1235103a8feaSLen Brown { 1236103a8feaSLen Brown unsigned int eax, ebx, ecx, edx, max_level; 1237103a8feaSLen Brown unsigned int fms, family, model, stepping; 1238103a8feaSLen Brown 1239103a8feaSLen Brown eax = ebx = ecx = edx = 0; 1240103a8feaSLen Brown 1241103a8feaSLen Brown asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0)); 1242103a8feaSLen Brown 1243103a8feaSLen Brown if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e) 1244103a8feaSLen Brown genuine_intel = 1; 1245103a8feaSLen Brown 1246103a8feaSLen Brown if (verbose) 1247103a8feaSLen Brown fprintf(stderr, "%.4s%.4s%.4s ", 1248103a8feaSLen Brown (char *)&ebx, (char *)&edx, (char *)&ecx); 1249103a8feaSLen Brown 1250103a8feaSLen Brown asm("cpuid" : "=a" (fms), "=c" (ecx), "=d" (edx) : "a" (1) : "ebx"); 1251103a8feaSLen Brown family = (fms >> 8) & 0xf; 1252103a8feaSLen Brown model = (fms >> 4) & 0xf; 1253103a8feaSLen Brown stepping = fms & 0xf; 1254103a8feaSLen Brown if (family == 6 || family == 0xf) 1255103a8feaSLen Brown model += ((fms >> 16) & 0xf) << 4; 1256103a8feaSLen Brown 1257103a8feaSLen Brown if (verbose) 1258103a8feaSLen Brown fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n", 1259103a8feaSLen Brown max_level, family, model, stepping, family, model, stepping); 1260103a8feaSLen Brown 1261103a8feaSLen Brown if (!(edx & (1 << 5))) { 1262103a8feaSLen Brown fprintf(stderr, "CPUID: no MSR\n"); 1263103a8feaSLen Brown exit(1); 1264103a8feaSLen Brown } 1265103a8feaSLen Brown 1266103a8feaSLen Brown /* 1267103a8feaSLen Brown * check max extended function levels of CPUID. 1268103a8feaSLen Brown * This is needed to check for invariant TSC. 1269103a8feaSLen Brown * This check is valid for both Intel and AMD. 1270103a8feaSLen Brown */ 1271103a8feaSLen Brown ebx = ecx = edx = 0; 1272103a8feaSLen Brown asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000000)); 1273103a8feaSLen Brown 1274103a8feaSLen Brown if (max_level < 0x80000007) { 1275103a8feaSLen Brown fprintf(stderr, "CPUID: no invariant TSC (max_level 0x%x)\n", max_level); 1276103a8feaSLen Brown exit(1); 1277103a8feaSLen Brown } 1278103a8feaSLen Brown 1279103a8feaSLen Brown /* 1280103a8feaSLen Brown * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8 1281103a8feaSLen Brown * this check is valid for both Intel and AMD 1282103a8feaSLen Brown */ 1283103a8feaSLen Brown asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000007)); 12848209e054SThomas Renninger has_invariant_tsc = edx & (1 << 8); 1285103a8feaSLen Brown 1286103a8feaSLen Brown if (!has_invariant_tsc) { 1287103a8feaSLen Brown fprintf(stderr, "No invariant TSC\n"); 1288103a8feaSLen Brown exit(1); 1289103a8feaSLen Brown } 1290103a8feaSLen Brown 1291103a8feaSLen Brown /* 1292103a8feaSLen Brown * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0 1293103a8feaSLen Brown * this check is valid for both Intel and AMD 1294103a8feaSLen Brown */ 1295103a8feaSLen Brown 1296103a8feaSLen Brown asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x6)); 12978209e054SThomas Renninger has_aperf = ecx & (1 << 0); 1298103a8feaSLen Brown if (!has_aperf) { 1299103a8feaSLen Brown fprintf(stderr, "No APERF MSR\n"); 1300103a8feaSLen Brown exit(1); 1301103a8feaSLen Brown } 1302103a8feaSLen Brown 1303103a8feaSLen Brown do_nehalem_platform_info = genuine_intel && has_invariant_tsc; 1304103a8feaSLen Brown do_nhm_cstates = genuine_intel; /* all Intel w/ non-stop TSC have NHM counters */ 1305103a8feaSLen Brown do_snb_cstates = is_snb(family, model); 1306103a8feaSLen Brown bclk = discover_bclk(family, model); 1307103a8feaSLen Brown 1308103a8feaSLen Brown do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model); 13096574a5d5SLen Brown do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model); 1310103a8feaSLen Brown } 1311103a8feaSLen Brown 1312103a8feaSLen Brown 1313103a8feaSLen Brown void usage() 1314103a8feaSLen Brown { 1315f9240813SLen Brown fprintf(stderr, "%s: [-v][-p|-P|-S][-c MSR# | -s]][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", 1316103a8feaSLen Brown progname); 1317103a8feaSLen Brown exit(1); 1318103a8feaSLen Brown } 1319103a8feaSLen Brown 1320103a8feaSLen Brown 1321103a8feaSLen Brown /* 1322103a8feaSLen Brown * in /dev/cpu/ return success for names that are numbers 1323103a8feaSLen Brown * ie. filter out ".", "..", "microcode". 1324103a8feaSLen Brown */ 1325103a8feaSLen Brown int dir_filter(const struct dirent *dirp) 1326103a8feaSLen Brown { 1327103a8feaSLen Brown if (isdigit(dirp->d_name[0])) 1328103a8feaSLen Brown return 1; 1329103a8feaSLen Brown else 1330103a8feaSLen Brown return 0; 1331103a8feaSLen Brown } 1332103a8feaSLen Brown 1333103a8feaSLen Brown int open_dev_cpu_msr(int dummy1) 1334103a8feaSLen Brown { 1335103a8feaSLen Brown return 0; 1336103a8feaSLen Brown } 1337103a8feaSLen Brown 1338c98d5d94SLen Brown void topology_probe() 1339c98d5d94SLen Brown { 1340c98d5d94SLen Brown int i; 1341c98d5d94SLen Brown int max_core_id = 0; 1342c98d5d94SLen Brown int max_package_id = 0; 1343c98d5d94SLen Brown int max_siblings = 0; 1344c98d5d94SLen Brown struct cpu_topology { 1345c98d5d94SLen Brown int core_id; 1346c98d5d94SLen Brown int physical_package_id; 1347c98d5d94SLen Brown } *cpus; 1348c98d5d94SLen Brown 1349c98d5d94SLen Brown /* Initialize num_cpus, max_cpu_num */ 1350c98d5d94SLen Brown topo.num_cpus = 0; 1351c98d5d94SLen Brown topo.max_cpu_num = 0; 1352c98d5d94SLen Brown for_all_proc_cpus(count_cpus); 1353c98d5d94SLen Brown if (!summary_only && topo.num_cpus > 1) 1354c98d5d94SLen Brown show_cpu = 1; 1355c98d5d94SLen Brown 1356c98d5d94SLen Brown if (verbose > 1) 1357c98d5d94SLen Brown fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); 1358c98d5d94SLen Brown 1359c98d5d94SLen Brown cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology)); 1360c98d5d94SLen Brown if (cpus == NULL) { 1361c98d5d94SLen Brown perror("calloc cpus"); 1362c98d5d94SLen Brown exit(1); 1363c98d5d94SLen Brown } 1364c98d5d94SLen Brown 1365c98d5d94SLen Brown /* 1366c98d5d94SLen Brown * Allocate and initialize cpu_present_set 1367c98d5d94SLen Brown */ 1368c98d5d94SLen Brown cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1)); 1369c98d5d94SLen Brown if (cpu_present_set == NULL) { 1370c98d5d94SLen Brown perror("CPU_ALLOC"); 1371c98d5d94SLen Brown exit(3); 1372c98d5d94SLen Brown } 1373c98d5d94SLen Brown cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); 1374c98d5d94SLen Brown CPU_ZERO_S(cpu_present_setsize, cpu_present_set); 1375c98d5d94SLen Brown for_all_proc_cpus(mark_cpu_present); 1376c98d5d94SLen Brown 1377c98d5d94SLen Brown /* 1378c98d5d94SLen Brown * Allocate and initialize cpu_affinity_set 1379c98d5d94SLen Brown */ 1380c98d5d94SLen Brown cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1)); 1381c98d5d94SLen Brown if (cpu_affinity_set == NULL) { 1382c98d5d94SLen Brown perror("CPU_ALLOC"); 1383c98d5d94SLen Brown exit(3); 1384c98d5d94SLen Brown } 1385c98d5d94SLen Brown cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); 1386c98d5d94SLen Brown CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); 1387c98d5d94SLen Brown 1388c98d5d94SLen Brown 1389c98d5d94SLen Brown /* 1390c98d5d94SLen Brown * For online cpus 1391c98d5d94SLen Brown * find max_core_id, max_package_id 1392c98d5d94SLen Brown */ 1393c98d5d94SLen Brown for (i = 0; i <= topo.max_cpu_num; ++i) { 1394c98d5d94SLen Brown int siblings; 1395c98d5d94SLen Brown 1396c98d5d94SLen Brown if (cpu_is_not_present(i)) { 1397c98d5d94SLen Brown if (verbose > 1) 1398c98d5d94SLen Brown fprintf(stderr, "cpu%d NOT PRESENT\n", i); 1399c98d5d94SLen Brown continue; 1400c98d5d94SLen Brown } 1401c98d5d94SLen Brown cpus[i].core_id = get_core_id(i); 1402c98d5d94SLen Brown if (cpus[i].core_id > max_core_id) 1403c98d5d94SLen Brown max_core_id = cpus[i].core_id; 1404c98d5d94SLen Brown 1405c98d5d94SLen Brown cpus[i].physical_package_id = get_physical_package_id(i); 1406c98d5d94SLen Brown if (cpus[i].physical_package_id > max_package_id) 1407c98d5d94SLen Brown max_package_id = cpus[i].physical_package_id; 1408c98d5d94SLen Brown 1409c98d5d94SLen Brown siblings = get_num_ht_siblings(i); 1410c98d5d94SLen Brown if (siblings > max_siblings) 1411c98d5d94SLen Brown max_siblings = siblings; 1412c98d5d94SLen Brown if (verbose > 1) 1413c98d5d94SLen Brown fprintf(stderr, "cpu %d pkg %d core %d\n", 1414c98d5d94SLen Brown i, cpus[i].physical_package_id, cpus[i].core_id); 1415c98d5d94SLen Brown } 1416c98d5d94SLen Brown topo.num_cores_per_pkg = max_core_id + 1; 1417c98d5d94SLen Brown if (verbose > 1) 1418c98d5d94SLen Brown fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n", 1419c98d5d94SLen Brown max_core_id, topo.num_cores_per_pkg); 1420c98d5d94SLen Brown if (!summary_only && topo.num_cores_per_pkg > 1) 1421c98d5d94SLen Brown show_core = 1; 1422c98d5d94SLen Brown 1423c98d5d94SLen Brown topo.num_packages = max_package_id + 1; 1424c98d5d94SLen Brown if (verbose > 1) 1425c98d5d94SLen Brown fprintf(stderr, "max_package_id %d, sizing for %d packages\n", 1426c98d5d94SLen Brown max_package_id, topo.num_packages); 1427c98d5d94SLen Brown if (!summary_only && topo.num_packages > 1) 1428c98d5d94SLen Brown show_pkg = 1; 1429c98d5d94SLen Brown 1430c98d5d94SLen Brown topo.num_threads_per_core = max_siblings; 1431c98d5d94SLen Brown if (verbose > 1) 1432c98d5d94SLen Brown fprintf(stderr, "max_siblings %d\n", max_siblings); 1433c98d5d94SLen Brown 1434c98d5d94SLen Brown free(cpus); 1435c98d5d94SLen Brown } 1436c98d5d94SLen Brown 1437c98d5d94SLen Brown void 1438c98d5d94SLen Brown allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p) 1439c98d5d94SLen Brown { 1440c98d5d94SLen Brown int i; 1441c98d5d94SLen Brown 1442c98d5d94SLen Brown *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg * 1443c98d5d94SLen Brown topo.num_packages, sizeof(struct thread_data)); 1444c98d5d94SLen Brown if (*t == NULL) 1445c98d5d94SLen Brown goto error; 1446c98d5d94SLen Brown 1447c98d5d94SLen Brown for (i = 0; i < topo.num_threads_per_core * 1448c98d5d94SLen Brown topo.num_cores_per_pkg * topo.num_packages; i++) 1449c98d5d94SLen Brown (*t)[i].cpu_id = -1; 1450c98d5d94SLen Brown 1451c98d5d94SLen Brown *c = calloc(topo.num_cores_per_pkg * topo.num_packages, 1452c98d5d94SLen Brown sizeof(struct core_data)); 1453c98d5d94SLen Brown if (*c == NULL) 1454c98d5d94SLen Brown goto error; 1455c98d5d94SLen Brown 1456c98d5d94SLen Brown for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++) 1457c98d5d94SLen Brown (*c)[i].core_id = -1; 1458c98d5d94SLen Brown 1459c98d5d94SLen Brown *p = calloc(topo.num_packages, sizeof(struct pkg_data)); 1460c98d5d94SLen Brown if (*p == NULL) 1461c98d5d94SLen Brown goto error; 1462c98d5d94SLen Brown 1463c98d5d94SLen Brown for (i = 0; i < topo.num_packages; i++) 1464c98d5d94SLen Brown (*p)[i].package_id = i; 1465c98d5d94SLen Brown 1466c98d5d94SLen Brown return; 1467c98d5d94SLen Brown error: 1468c98d5d94SLen Brown perror("calloc counters"); 1469c98d5d94SLen Brown exit(1); 1470c98d5d94SLen Brown } 1471c98d5d94SLen Brown /* 1472c98d5d94SLen Brown * init_counter() 1473c98d5d94SLen Brown * 1474c98d5d94SLen Brown * set cpu_id, core_num, pkg_num 1475c98d5d94SLen Brown * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE 1476c98d5d94SLen Brown * 1477c98d5d94SLen Brown * increment topo.num_cores when 1st core in pkg seen 1478c98d5d94SLen Brown */ 1479c98d5d94SLen Brown void init_counter(struct thread_data *thread_base, struct core_data *core_base, 1480c98d5d94SLen Brown struct pkg_data *pkg_base, int thread_num, int core_num, 1481c98d5d94SLen Brown int pkg_num, int cpu_id) 1482c98d5d94SLen Brown { 1483c98d5d94SLen Brown struct thread_data *t; 1484c98d5d94SLen Brown struct core_data *c; 1485c98d5d94SLen Brown struct pkg_data *p; 1486c98d5d94SLen Brown 1487c98d5d94SLen Brown t = GET_THREAD(thread_base, thread_num, core_num, pkg_num); 1488c98d5d94SLen Brown c = GET_CORE(core_base, core_num, pkg_num); 1489c98d5d94SLen Brown p = GET_PKG(pkg_base, pkg_num); 1490c98d5d94SLen Brown 1491c98d5d94SLen Brown t->cpu_id = cpu_id; 1492c98d5d94SLen Brown if (thread_num == 0) { 1493c98d5d94SLen Brown t->flags |= CPU_IS_FIRST_THREAD_IN_CORE; 1494c98d5d94SLen Brown if (cpu_is_first_core_in_package(cpu_id)) 1495c98d5d94SLen Brown t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE; 1496c98d5d94SLen Brown } 1497c98d5d94SLen Brown 1498c98d5d94SLen Brown c->core_id = core_num; 1499c98d5d94SLen Brown p->package_id = pkg_num; 1500c98d5d94SLen Brown } 1501c98d5d94SLen Brown 1502c98d5d94SLen Brown 1503c98d5d94SLen Brown int initialize_counters(int cpu_id) 1504c98d5d94SLen Brown { 1505c98d5d94SLen Brown int my_thread_id, my_core_id, my_package_id; 1506c98d5d94SLen Brown 1507c98d5d94SLen Brown my_package_id = get_physical_package_id(cpu_id); 1508c98d5d94SLen Brown my_core_id = get_core_id(cpu_id); 1509c98d5d94SLen Brown 1510c98d5d94SLen Brown if (cpu_is_first_sibling_in_core(cpu_id)) { 1511c98d5d94SLen Brown my_thread_id = 0; 1512c98d5d94SLen Brown topo.num_cores++; 1513c98d5d94SLen Brown } else { 1514c98d5d94SLen Brown my_thread_id = 1; 1515c98d5d94SLen Brown } 1516c98d5d94SLen Brown 1517c98d5d94SLen Brown init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); 1518c98d5d94SLen Brown init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); 1519c98d5d94SLen Brown return 0; 1520c98d5d94SLen Brown } 1521c98d5d94SLen Brown 1522c98d5d94SLen Brown void allocate_output_buffer() 1523c98d5d94SLen Brown { 1524c98d5d94SLen Brown output_buffer = calloc(1, (1 + topo.num_cpus) * 128); 1525c98d5d94SLen Brown outp = output_buffer; 1526c98d5d94SLen Brown if (outp == NULL) { 1527c98d5d94SLen Brown perror("calloc"); 1528c98d5d94SLen Brown exit(-1); 1529c98d5d94SLen Brown } 1530c98d5d94SLen Brown } 1531c98d5d94SLen Brown 1532c98d5d94SLen Brown void setup_all_buffers(void) 1533c98d5d94SLen Brown { 1534c98d5d94SLen Brown topology_probe(); 1535c98d5d94SLen Brown allocate_counters(&thread_even, &core_even, &package_even); 1536c98d5d94SLen Brown allocate_counters(&thread_odd, &core_odd, &package_odd); 1537c98d5d94SLen Brown allocate_output_buffer(); 1538c98d5d94SLen Brown for_all_proc_cpus(initialize_counters); 1539c98d5d94SLen Brown } 1540103a8feaSLen Brown void turbostat_init() 1541103a8feaSLen Brown { 1542103a8feaSLen Brown check_cpuid(); 1543103a8feaSLen Brown 1544103a8feaSLen Brown check_dev_msr(); 1545103a8feaSLen Brown check_super_user(); 1546103a8feaSLen Brown 1547c98d5d94SLen Brown setup_all_buffers(); 1548103a8feaSLen Brown 1549103a8feaSLen Brown if (verbose) 1550c98d5d94SLen Brown print_verbose_header(); 1551103a8feaSLen Brown } 1552103a8feaSLen Brown 1553103a8feaSLen Brown int fork_it(char **argv) 1554103a8feaSLen Brown { 1555103a8feaSLen Brown pid_t child_pid; 1556d91bb17cSLen Brown int status; 1557d15cf7c1SLen Brown 1558d91bb17cSLen Brown status = for_all_cpus(get_counters, EVEN_COUNTERS); 1559d91bb17cSLen Brown if (status) 1560d91bb17cSLen Brown exit(status); 1561d15cf7c1SLen Brown /* clear affinity side-effect of get_counters() */ 1562d15cf7c1SLen Brown sched_setaffinity(0, cpu_present_setsize, cpu_present_set); 1563103a8feaSLen Brown gettimeofday(&tv_even, (struct timezone *)NULL); 1564103a8feaSLen Brown 1565103a8feaSLen Brown child_pid = fork(); 1566103a8feaSLen Brown if (!child_pid) { 1567103a8feaSLen Brown /* child */ 1568103a8feaSLen Brown execvp(argv[0], argv); 1569103a8feaSLen Brown } else { 1570103a8feaSLen Brown 1571103a8feaSLen Brown /* parent */ 1572103a8feaSLen Brown if (child_pid == -1) { 1573103a8feaSLen Brown perror("fork"); 1574103a8feaSLen Brown exit(1); 1575103a8feaSLen Brown } 1576103a8feaSLen Brown 1577103a8feaSLen Brown signal(SIGINT, SIG_IGN); 1578103a8feaSLen Brown signal(SIGQUIT, SIG_IGN); 1579103a8feaSLen Brown if (waitpid(child_pid, &status, 0) == -1) { 1580103a8feaSLen Brown perror("wait"); 1581d91bb17cSLen Brown exit(status); 1582103a8feaSLen Brown } 1583103a8feaSLen Brown } 1584c98d5d94SLen Brown /* 1585c98d5d94SLen Brown * n.b. fork_it() does not check for errors from for_all_cpus() 1586c98d5d94SLen Brown * because re-starting is problematic when forking 1587c98d5d94SLen Brown */ 1588c98d5d94SLen Brown for_all_cpus(get_counters, ODD_COUNTERS); 1589103a8feaSLen Brown gettimeofday(&tv_odd, (struct timezone *)NULL); 1590103a8feaSLen Brown timersub(&tv_odd, &tv_even, &tv_delta); 1591c98d5d94SLen Brown for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); 1592c98d5d94SLen Brown compute_average(EVEN_COUNTERS); 1593c98d5d94SLen Brown format_all_counters(EVEN_COUNTERS); 1594c98d5d94SLen Brown flush_stderr(); 1595103a8feaSLen Brown 15966eab04a8SJustin P. Mattock fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); 1597103a8feaSLen Brown 1598d91bb17cSLen Brown return status; 1599103a8feaSLen Brown } 1600103a8feaSLen Brown 1601103a8feaSLen Brown void cmdline(int argc, char **argv) 1602103a8feaSLen Brown { 1603103a8feaSLen Brown int opt; 1604103a8feaSLen Brown 1605103a8feaSLen Brown progname = argv[0]; 1606103a8feaSLen Brown 160739300ffbSLen Brown while ((opt = getopt(argc, argv, "+pPSvi:sc:sC:m:M:")) != -1) { 1608103a8feaSLen Brown switch (opt) { 1609f9240813SLen Brown case 'p': 1610c98d5d94SLen Brown show_core_only++; 1611c98d5d94SLen Brown break; 1612f9240813SLen Brown case 'P': 1613c98d5d94SLen Brown show_pkg_only++; 1614c98d5d94SLen Brown break; 1615f9240813SLen Brown case 'S': 1616e23da037SLen Brown summary_only++; 1617e23da037SLen Brown break; 1618103a8feaSLen Brown case 'v': 1619103a8feaSLen Brown verbose++; 1620103a8feaSLen Brown break; 1621103a8feaSLen Brown case 'i': 1622103a8feaSLen Brown interval_sec = atoi(optarg); 1623103a8feaSLen Brown break; 1624f9240813SLen Brown case 'c': 16258e180f3cSLen Brown sscanf(optarg, "%x", &extra_delta_offset32); 16268e180f3cSLen Brown break; 1627f9240813SLen Brown case 's': 1628f9240813SLen Brown extra_delta_offset32 = 0x34; /* SMI counter */ 1629f9240813SLen Brown break; 1630f9240813SLen Brown case 'C': 16318e180f3cSLen Brown sscanf(optarg, "%x", &extra_delta_offset64); 16328e180f3cSLen Brown break; 16332f32edf1SLen Brown case 'm': 16342f32edf1SLen Brown sscanf(optarg, "%x", &extra_msr_offset32); 16352f32edf1SLen Brown break; 16362f32edf1SLen Brown case 'M': 16372f32edf1SLen Brown sscanf(optarg, "%x", &extra_msr_offset64); 1638103a8feaSLen Brown break; 1639103a8feaSLen Brown default: 1640103a8feaSLen Brown usage(); 1641103a8feaSLen Brown } 1642103a8feaSLen Brown } 1643103a8feaSLen Brown } 1644103a8feaSLen Brown 1645103a8feaSLen Brown int main(int argc, char **argv) 1646103a8feaSLen Brown { 1647103a8feaSLen Brown cmdline(argc, argv); 1648103a8feaSLen Brown 1649103a8feaSLen Brown if (verbose > 1) 1650f9240813SLen Brown fprintf(stderr, "turbostat v2.1 October 6, 2012" 1651103a8feaSLen Brown " - Len Brown <lenb@kernel.org>\n"); 1652103a8feaSLen Brown 1653103a8feaSLen Brown turbostat_init(); 1654103a8feaSLen Brown 1655103a8feaSLen Brown /* 1656103a8feaSLen Brown * if any params left, it must be a command to fork 1657103a8feaSLen Brown */ 1658103a8feaSLen Brown if (argc - optind) 1659103a8feaSLen Brown return fork_it(argv + optind); 1660103a8feaSLen Brown else 1661103a8feaSLen Brown turbostat_loop(); 1662103a8feaSLen Brown 1663103a8feaSLen Brown return 0; 1664103a8feaSLen Brown } 1665