1 /* 2 * turbostat -- show CPU frequency and C-state residency 3 * on modern Intel turbo-capable processors. 4 * 5 * Copyright (c) 2013 Intel Corporation. 6 * Len Brown <len.brown@intel.com> 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms and conditions of the GNU General Public License, 10 * version 2, as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope it will be useful, but WITHOUT 13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 * more details. 16 * 17 * You should have received a copy of the GNU General Public License along with 18 * this program; if not, write to the Free Software Foundation, Inc., 19 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. 20 */ 21 22 #define _GNU_SOURCE 23 #include MSRHEADER 24 #include <stdarg.h> 25 #include <stdio.h> 26 #include <err.h> 27 #include <unistd.h> 28 #include <sys/types.h> 29 #include <sys/wait.h> 30 #include <sys/stat.h> 31 #include <sys/resource.h> 32 #include <fcntl.h> 33 #include <signal.h> 34 #include <sys/time.h> 35 #include <stdlib.h> 36 #include <dirent.h> 37 #include <string.h> 38 #include <ctype.h> 39 #include <sched.h> 40 #include <cpuid.h> 41 42 char *proc_stat = "/proc/stat"; 43 unsigned int interval_sec = 5; /* set with -i interval_sec */ 44 unsigned int verbose; /* set with -v */ 45 unsigned int rapl_verbose; /* set with -R */ 46 unsigned int rapl_joules; /* set with -J */ 47 unsigned int thermal_verbose; /* set with -T */ 48 unsigned int summary_only; /* set with -S */ 49 unsigned int dump_only; /* set with -s */ 50 unsigned int skip_c0; 51 unsigned int skip_c1; 52 unsigned int do_nhm_cstates; 53 unsigned int do_snb_cstates; 54 unsigned int do_c8_c9_c10; 55 unsigned int do_slm_cstates; 56 unsigned int use_c1_residency_msr; 57 unsigned int has_aperf; 58 unsigned int has_epb; 59 unsigned int units = 1000000; /* MHz etc */ 60 unsigned int genuine_intel; 61 unsigned int has_invariant_tsc; 62 unsigned int do_nehalem_platform_info; 63 unsigned int do_nehalem_turbo_ratio_limit; 64 unsigned int do_ivt_turbo_ratio_limit; 65 unsigned int extra_msr_offset32; 66 unsigned int extra_msr_offset64; 67 unsigned int extra_delta_offset32; 68 unsigned int extra_delta_offset64; 69 int do_smi; 70 double bclk; 71 unsigned int show_pkg; 72 unsigned int show_core; 73 unsigned int show_cpu; 74 unsigned int show_pkg_only; 75 unsigned int show_core_only; 76 char *output_buffer, *outp; 77 unsigned int do_rapl; 78 unsigned int do_dts; 79 unsigned int do_ptm; 80 unsigned int tcc_activation_temp; 81 unsigned int tcc_activation_temp_override; 82 double rapl_power_units, rapl_energy_units, rapl_time_units; 83 double rapl_joule_counter_range; 84 85 #define RAPL_PKG (1 << 0) 86 /* 0x610 MSR_PKG_POWER_LIMIT */ 87 /* 0x611 MSR_PKG_ENERGY_STATUS */ 88 #define RAPL_PKG_PERF_STATUS (1 << 1) 89 /* 0x613 MSR_PKG_PERF_STATUS */ 90 #define RAPL_PKG_POWER_INFO (1 << 2) 91 /* 0x614 MSR_PKG_POWER_INFO */ 92 93 #define RAPL_DRAM (1 << 3) 94 /* 0x618 MSR_DRAM_POWER_LIMIT */ 95 /* 0x619 MSR_DRAM_ENERGY_STATUS */ 96 /* 0x61c MSR_DRAM_POWER_INFO */ 97 #define RAPL_DRAM_PERF_STATUS (1 << 4) 98 /* 0x61b MSR_DRAM_PERF_STATUS */ 99 100 #define RAPL_CORES (1 << 5) 101 /* 0x638 MSR_PP0_POWER_LIMIT */ 102 /* 0x639 MSR_PP0_ENERGY_STATUS */ 103 #define RAPL_CORE_POLICY (1 << 6) 104 /* 0x63a MSR_PP0_POLICY */ 105 106 107 #define RAPL_GFX (1 << 7) 108 /* 0x640 MSR_PP1_POWER_LIMIT */ 109 /* 0x641 MSR_PP1_ENERGY_STATUS */ 110 /* 0x642 MSR_PP1_POLICY */ 111 #define TJMAX_DEFAULT 100 112 113 #define MAX(a, b) ((a) > (b) ? (a) : (b)) 114 115 int aperf_mperf_unstable; 116 int backwards_count; 117 char *progname; 118 119 cpu_set_t *cpu_present_set, *cpu_affinity_set; 120 size_t cpu_present_setsize, cpu_affinity_setsize; 121 122 struct thread_data { 123 unsigned long long tsc; 124 unsigned long long aperf; 125 unsigned long long mperf; 126 unsigned long long c1; 127 unsigned long long extra_msr64; 128 unsigned long long extra_delta64; 129 unsigned long long extra_msr32; 130 unsigned long long extra_delta32; 131 unsigned int smi_count; 132 unsigned int cpu_id; 133 unsigned int flags; 134 #define CPU_IS_FIRST_THREAD_IN_CORE 0x2 135 #define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4 136 } *thread_even, *thread_odd; 137 138 struct core_data { 139 unsigned long long c3; 140 unsigned long long c6; 141 unsigned long long c7; 142 unsigned int core_temp_c; 143 unsigned int core_id; 144 } *core_even, *core_odd; 145 146 struct pkg_data { 147 unsigned long long pc2; 148 unsigned long long pc3; 149 unsigned long long pc6; 150 unsigned long long pc7; 151 unsigned long long pc8; 152 unsigned long long pc9; 153 unsigned long long pc10; 154 unsigned int package_id; 155 unsigned int energy_pkg; /* MSR_PKG_ENERGY_STATUS */ 156 unsigned int energy_dram; /* MSR_DRAM_ENERGY_STATUS */ 157 unsigned int energy_cores; /* MSR_PP0_ENERGY_STATUS */ 158 unsigned int energy_gfx; /* MSR_PP1_ENERGY_STATUS */ 159 unsigned int rapl_pkg_perf_status; /* MSR_PKG_PERF_STATUS */ 160 unsigned int rapl_dram_perf_status; /* MSR_DRAM_PERF_STATUS */ 161 unsigned int pkg_temp_c; 162 163 } *package_even, *package_odd; 164 165 #define ODD_COUNTERS thread_odd, core_odd, package_odd 166 #define EVEN_COUNTERS thread_even, core_even, package_even 167 168 #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \ 169 (thread_base + (pkg_no) * topo.num_cores_per_pkg * \ 170 topo.num_threads_per_core + \ 171 (core_no) * topo.num_threads_per_core + (thread_no)) 172 #define GET_CORE(core_base, core_no, pkg_no) \ 173 (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no)) 174 #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no) 175 176 struct system_summary { 177 struct thread_data threads; 178 struct core_data cores; 179 struct pkg_data packages; 180 } sum, average; 181 182 183 struct topo_params { 184 int num_packages; 185 int num_cpus; 186 int num_cores; 187 int max_cpu_num; 188 int num_cores_per_pkg; 189 int num_threads_per_core; 190 } topo; 191 192 struct timeval tv_even, tv_odd, tv_delta; 193 194 void setup_all_buffers(void); 195 196 int cpu_is_not_present(int cpu) 197 { 198 return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set); 199 } 200 /* 201 * run func(thread, core, package) in topology order 202 * skip non-present cpus 203 */ 204 205 int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *), 206 struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base) 207 { 208 int retval, pkg_no, core_no, thread_no; 209 210 for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { 211 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { 212 for (thread_no = 0; thread_no < 213 topo.num_threads_per_core; ++thread_no) { 214 struct thread_data *t; 215 struct core_data *c; 216 struct pkg_data *p; 217 218 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); 219 220 if (cpu_is_not_present(t->cpu_id)) 221 continue; 222 223 c = GET_CORE(core_base, core_no, pkg_no); 224 p = GET_PKG(pkg_base, pkg_no); 225 226 retval = func(t, c, p); 227 if (retval) 228 return retval; 229 } 230 } 231 } 232 return 0; 233 } 234 235 int cpu_migrate(int cpu) 236 { 237 CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); 238 CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set); 239 if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1) 240 return -1; 241 else 242 return 0; 243 } 244 245 int get_msr(int cpu, off_t offset, unsigned long long *msr) 246 { 247 ssize_t retval; 248 char pathname[32]; 249 int fd; 250 251 sprintf(pathname, "/dev/cpu/%d/msr", cpu); 252 fd = open(pathname, O_RDONLY); 253 if (fd < 0) 254 return -1; 255 256 retval = pread(fd, msr, sizeof *msr, offset); 257 close(fd); 258 259 if (retval != sizeof *msr) { 260 fprintf(stderr, "%s offset 0x%llx read failed\n", pathname, (unsigned long long)offset); 261 return -1; 262 } 263 264 return 0; 265 } 266 267 /* 268 * Example Format w/ field column widths: 269 * 270 * Package Core CPU Avg_MHz Bzy_MHz TSC_MHz SMI %Busy CPU_%c1 CPU_%c3 CPU_%c6 CPU_%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt 271 * 123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678 272 */ 273 274 void print_header(void) 275 { 276 if (show_pkg) 277 outp += sprintf(outp, " Package"); 278 if (show_core) 279 outp += sprintf(outp, " Core"); 280 if (show_cpu) 281 outp += sprintf(outp, " CPU"); 282 if (has_aperf) 283 outp += sprintf(outp, " Avg_MHz"); 284 if (do_nhm_cstates) 285 outp += sprintf(outp, " %%Busy"); 286 if (has_aperf) 287 outp += sprintf(outp, " Bzy_MHz"); 288 outp += sprintf(outp, " TSC_MHz"); 289 if (do_smi) 290 outp += sprintf(outp, " SMI"); 291 if (extra_delta_offset32) 292 outp += sprintf(outp, " count 0x%03X", extra_delta_offset32); 293 if (extra_delta_offset64) 294 outp += sprintf(outp, " COUNT 0x%03X", extra_delta_offset64); 295 if (extra_msr_offset32) 296 outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32); 297 if (extra_msr_offset64) 298 outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64); 299 if (do_nhm_cstates) 300 outp += sprintf(outp, " CPU%%c1"); 301 if (do_nhm_cstates && !do_slm_cstates) 302 outp += sprintf(outp, " CPU%%c3"); 303 if (do_nhm_cstates) 304 outp += sprintf(outp, " CPU%%c6"); 305 if (do_snb_cstates) 306 outp += sprintf(outp, " CPU%%c7"); 307 308 if (do_dts) 309 outp += sprintf(outp, " CoreTmp"); 310 if (do_ptm) 311 outp += sprintf(outp, " PkgTmp"); 312 313 if (do_snb_cstates) 314 outp += sprintf(outp, " Pkg%%pc2"); 315 if (do_nhm_cstates && !do_slm_cstates) 316 outp += sprintf(outp, " Pkg%%pc3"); 317 if (do_nhm_cstates && !do_slm_cstates) 318 outp += sprintf(outp, " Pkg%%pc6"); 319 if (do_snb_cstates) 320 outp += sprintf(outp, " Pkg%%pc7"); 321 if (do_c8_c9_c10) { 322 outp += sprintf(outp, " Pkg%%pc8"); 323 outp += sprintf(outp, " Pkg%%pc9"); 324 outp += sprintf(outp, " Pk%%pc10"); 325 } 326 327 if (do_rapl && !rapl_joules) { 328 if (do_rapl & RAPL_PKG) 329 outp += sprintf(outp, " PkgWatt"); 330 if (do_rapl & RAPL_CORES) 331 outp += sprintf(outp, " CorWatt"); 332 if (do_rapl & RAPL_GFX) 333 outp += sprintf(outp, " GFXWatt"); 334 if (do_rapl & RAPL_DRAM) 335 outp += sprintf(outp, " RAMWatt"); 336 if (do_rapl & RAPL_PKG_PERF_STATUS) 337 outp += sprintf(outp, " PKG_%%"); 338 if (do_rapl & RAPL_DRAM_PERF_STATUS) 339 outp += sprintf(outp, " RAM_%%"); 340 } else { 341 if (do_rapl & RAPL_PKG) 342 outp += sprintf(outp, " Pkg_J"); 343 if (do_rapl & RAPL_CORES) 344 outp += sprintf(outp, " Cor_J"); 345 if (do_rapl & RAPL_GFX) 346 outp += sprintf(outp, " GFX_J"); 347 if (do_rapl & RAPL_DRAM) 348 outp += sprintf(outp, " RAM_W"); 349 if (do_rapl & RAPL_PKG_PERF_STATUS) 350 outp += sprintf(outp, " PKG_%%"); 351 if (do_rapl & RAPL_DRAM_PERF_STATUS) 352 outp += sprintf(outp, " RAM_%%"); 353 outp += sprintf(outp, " time"); 354 355 } 356 outp += sprintf(outp, "\n"); 357 } 358 359 int dump_counters(struct thread_data *t, struct core_data *c, 360 struct pkg_data *p) 361 { 362 outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p); 363 364 if (t) { 365 outp += sprintf(outp, "CPU: %d flags 0x%x\n", 366 t->cpu_id, t->flags); 367 outp += sprintf(outp, "TSC: %016llX\n", t->tsc); 368 outp += sprintf(outp, "aperf: %016llX\n", t->aperf); 369 outp += sprintf(outp, "mperf: %016llX\n", t->mperf); 370 outp += sprintf(outp, "c1: %016llX\n", t->c1); 371 outp += sprintf(outp, "msr0x%x: %08llX\n", 372 extra_delta_offset32, t->extra_delta32); 373 outp += sprintf(outp, "msr0x%x: %016llX\n", 374 extra_delta_offset64, t->extra_delta64); 375 outp += sprintf(outp, "msr0x%x: %08llX\n", 376 extra_msr_offset32, t->extra_msr32); 377 outp += sprintf(outp, "msr0x%x: %016llX\n", 378 extra_msr_offset64, t->extra_msr64); 379 if (do_smi) 380 outp += sprintf(outp, "SMI: %08X\n", t->smi_count); 381 } 382 383 if (c) { 384 outp += sprintf(outp, "core: %d\n", c->core_id); 385 outp += sprintf(outp, "c3: %016llX\n", c->c3); 386 outp += sprintf(outp, "c6: %016llX\n", c->c6); 387 outp += sprintf(outp, "c7: %016llX\n", c->c7); 388 outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c); 389 } 390 391 if (p) { 392 outp += sprintf(outp, "package: %d\n", p->package_id); 393 outp += sprintf(outp, "pc2: %016llX\n", p->pc2); 394 outp += sprintf(outp, "pc3: %016llX\n", p->pc3); 395 outp += sprintf(outp, "pc6: %016llX\n", p->pc6); 396 outp += sprintf(outp, "pc7: %016llX\n", p->pc7); 397 outp += sprintf(outp, "pc8: %016llX\n", p->pc8); 398 outp += sprintf(outp, "pc9: %016llX\n", p->pc9); 399 outp += sprintf(outp, "pc10: %016llX\n", p->pc10); 400 outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg); 401 outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores); 402 outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx); 403 outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram); 404 outp += sprintf(outp, "Throttle PKG: %0X\n", 405 p->rapl_pkg_perf_status); 406 outp += sprintf(outp, "Throttle RAM: %0X\n", 407 p->rapl_dram_perf_status); 408 outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c); 409 } 410 411 outp += sprintf(outp, "\n"); 412 413 return 0; 414 } 415 416 /* 417 * column formatting convention & formats 418 */ 419 int format_counters(struct thread_data *t, struct core_data *c, 420 struct pkg_data *p) 421 { 422 double interval_float; 423 char *fmt8; 424 425 /* if showing only 1st thread in core and this isn't one, bail out */ 426 if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 427 return 0; 428 429 /* if showing only 1st thread in pkg and this isn't one, bail out */ 430 if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 431 return 0; 432 433 interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0; 434 435 /* topo columns, print blanks on 1st (average) line */ 436 if (t == &average.threads) { 437 if (show_pkg) 438 outp += sprintf(outp, " -"); 439 if (show_core) 440 outp += sprintf(outp, " -"); 441 if (show_cpu) 442 outp += sprintf(outp, " -"); 443 } else { 444 if (show_pkg) { 445 if (p) 446 outp += sprintf(outp, "%8d", p->package_id); 447 else 448 outp += sprintf(outp, " -"); 449 } 450 if (show_core) { 451 if (c) 452 outp += sprintf(outp, "%8d", c->core_id); 453 else 454 outp += sprintf(outp, " -"); 455 } 456 if (show_cpu) 457 outp += sprintf(outp, "%8d", t->cpu_id); 458 } 459 460 /* AvgMHz */ 461 if (has_aperf) 462 outp += sprintf(outp, "%8.0f", 463 1.0 / units * t->aperf / interval_float); 464 465 /* %c0 */ 466 if (do_nhm_cstates) { 467 if (!skip_c0) 468 outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc); 469 else 470 outp += sprintf(outp, "********"); 471 } 472 473 /* BzyMHz */ 474 if (has_aperf) 475 outp += sprintf(outp, "%8.0f", 476 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float); 477 478 /* TSC */ 479 outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float); 480 481 /* SMI */ 482 if (do_smi) 483 outp += sprintf(outp, "%8d", t->smi_count); 484 485 /* delta */ 486 if (extra_delta_offset32) 487 outp += sprintf(outp, " %11llu", t->extra_delta32); 488 489 /* DELTA */ 490 if (extra_delta_offset64) 491 outp += sprintf(outp, " %11llu", t->extra_delta64); 492 /* msr */ 493 if (extra_msr_offset32) 494 outp += sprintf(outp, " 0x%08llx", t->extra_msr32); 495 496 /* MSR */ 497 if (extra_msr_offset64) 498 outp += sprintf(outp, " 0x%016llx", t->extra_msr64); 499 500 if (do_nhm_cstates) { 501 if (!skip_c1) 502 outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc); 503 else 504 outp += sprintf(outp, "********"); 505 } 506 507 /* print per-core data only for 1st thread in core */ 508 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 509 goto done; 510 511 if (do_nhm_cstates && !do_slm_cstates) 512 outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc); 513 if (do_nhm_cstates) 514 outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc); 515 if (do_snb_cstates) 516 outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc); 517 518 if (do_dts) 519 outp += sprintf(outp, "%8d", c->core_temp_c); 520 521 /* print per-package data only for 1st core in package */ 522 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 523 goto done; 524 525 if (do_ptm) 526 outp += sprintf(outp, "%8d", p->pkg_temp_c); 527 528 if (do_snb_cstates) 529 outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc); 530 if (do_nhm_cstates && !do_slm_cstates) 531 outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc); 532 if (do_nhm_cstates && !do_slm_cstates) 533 outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc); 534 if (do_snb_cstates) 535 outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc); 536 if (do_c8_c9_c10) { 537 outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc); 538 outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc); 539 outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc); 540 } 541 542 /* 543 * If measurement interval exceeds minimum RAPL Joule Counter range, 544 * indicate that results are suspect by printing "**" in fraction place. 545 */ 546 if (interval_float < rapl_joule_counter_range) 547 fmt8 = "%8.2f"; 548 else 549 fmt8 = " %6.0f**"; 550 551 if (do_rapl && !rapl_joules) { 552 if (do_rapl & RAPL_PKG) 553 outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float); 554 if (do_rapl & RAPL_CORES) 555 outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float); 556 if (do_rapl & RAPL_GFX) 557 outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float); 558 if (do_rapl & RAPL_DRAM) 559 outp += sprintf(outp, fmt8, p->energy_dram * rapl_energy_units / interval_float); 560 if (do_rapl & RAPL_PKG_PERF_STATUS) 561 outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); 562 if (do_rapl & RAPL_DRAM_PERF_STATUS) 563 outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); 564 } else { 565 if (do_rapl & RAPL_PKG) 566 outp += sprintf(outp, fmt8, 567 p->energy_pkg * rapl_energy_units); 568 if (do_rapl & RAPL_CORES) 569 outp += sprintf(outp, fmt8, 570 p->energy_cores * rapl_energy_units); 571 if (do_rapl & RAPL_GFX) 572 outp += sprintf(outp, fmt8, 573 p->energy_gfx * rapl_energy_units); 574 if (do_rapl & RAPL_DRAM) 575 outp += sprintf(outp, fmt8, 576 p->energy_dram * rapl_energy_units); 577 if (do_rapl & RAPL_PKG_PERF_STATUS) 578 outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float); 579 if (do_rapl & RAPL_DRAM_PERF_STATUS) 580 outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float); 581 outp += sprintf(outp, fmt8, interval_float); 582 583 } 584 done: 585 outp += sprintf(outp, "\n"); 586 587 return 0; 588 } 589 590 void flush_stdout() 591 { 592 fputs(output_buffer, stdout); 593 fflush(stdout); 594 outp = output_buffer; 595 } 596 void flush_stderr() 597 { 598 fputs(output_buffer, stderr); 599 outp = output_buffer; 600 } 601 void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 602 { 603 static int printed; 604 605 if (!printed || !summary_only) 606 print_header(); 607 608 if (topo.num_cpus > 1) 609 format_counters(&average.threads, &average.cores, 610 &average.packages); 611 612 printed = 1; 613 614 if (summary_only) 615 return; 616 617 for_all_cpus(format_counters, t, c, p); 618 } 619 620 #define DELTA_WRAP32(new, old) \ 621 if (new > old) { \ 622 old = new - old; \ 623 } else { \ 624 old = 0x100000000 + new - old; \ 625 } 626 627 void 628 delta_package(struct pkg_data *new, struct pkg_data *old) 629 { 630 old->pc2 = new->pc2 - old->pc2; 631 old->pc3 = new->pc3 - old->pc3; 632 old->pc6 = new->pc6 - old->pc6; 633 old->pc7 = new->pc7 - old->pc7; 634 old->pc8 = new->pc8 - old->pc8; 635 old->pc9 = new->pc9 - old->pc9; 636 old->pc10 = new->pc10 - old->pc10; 637 old->pkg_temp_c = new->pkg_temp_c; 638 639 DELTA_WRAP32(new->energy_pkg, old->energy_pkg); 640 DELTA_WRAP32(new->energy_cores, old->energy_cores); 641 DELTA_WRAP32(new->energy_gfx, old->energy_gfx); 642 DELTA_WRAP32(new->energy_dram, old->energy_dram); 643 DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status); 644 DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status); 645 } 646 647 void 648 delta_core(struct core_data *new, struct core_data *old) 649 { 650 old->c3 = new->c3 - old->c3; 651 old->c6 = new->c6 - old->c6; 652 old->c7 = new->c7 - old->c7; 653 old->core_temp_c = new->core_temp_c; 654 } 655 656 /* 657 * old = new - old 658 */ 659 void 660 delta_thread(struct thread_data *new, struct thread_data *old, 661 struct core_data *core_delta) 662 { 663 old->tsc = new->tsc - old->tsc; 664 665 /* check for TSC < 1 Mcycles over interval */ 666 if (old->tsc < (1000 * 1000)) 667 errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n" 668 "You can disable all c-states by booting with \"idle=poll\"\n" 669 "or just the deep ones with \"processor.max_cstate=1\""); 670 671 old->c1 = new->c1 - old->c1; 672 673 if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) { 674 old->aperf = new->aperf - old->aperf; 675 old->mperf = new->mperf - old->mperf; 676 } else { 677 678 if (!aperf_mperf_unstable) { 679 fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname); 680 fprintf(stderr, "* Frequency results do not cover entire interval *\n"); 681 fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n"); 682 683 aperf_mperf_unstable = 1; 684 } 685 /* 686 * mperf delta is likely a huge "positive" number 687 * can not use it for calculating c0 time 688 */ 689 skip_c0 = 1; 690 skip_c1 = 1; 691 } 692 693 694 if (use_c1_residency_msr) { 695 /* 696 * Some models have a dedicated C1 residency MSR, 697 * which should be more accurate than the derivation below. 698 */ 699 } else { 700 /* 701 * As counter collection is not atomic, 702 * it is possible for mperf's non-halted cycles + idle states 703 * to exceed TSC's all cycles: show c1 = 0% in that case. 704 */ 705 if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc) 706 old->c1 = 0; 707 else { 708 /* normal case, derive c1 */ 709 old->c1 = old->tsc - old->mperf - core_delta->c3 710 - core_delta->c6 - core_delta->c7; 711 } 712 } 713 714 if (old->mperf == 0) { 715 if (verbose > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id); 716 old->mperf = 1; /* divide by 0 protection */ 717 } 718 719 old->extra_delta32 = new->extra_delta32 - old->extra_delta32; 720 old->extra_delta32 &= 0xFFFFFFFF; 721 722 old->extra_delta64 = new->extra_delta64 - old->extra_delta64; 723 724 /* 725 * Extra MSR is just a snapshot, simply copy latest w/o subtracting 726 */ 727 old->extra_msr32 = new->extra_msr32; 728 old->extra_msr64 = new->extra_msr64; 729 730 if (do_smi) 731 old->smi_count = new->smi_count - old->smi_count; 732 } 733 734 int delta_cpu(struct thread_data *t, struct core_data *c, 735 struct pkg_data *p, struct thread_data *t2, 736 struct core_data *c2, struct pkg_data *p2) 737 { 738 /* calculate core delta only for 1st thread in core */ 739 if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE) 740 delta_core(c, c2); 741 742 /* always calculate thread delta */ 743 delta_thread(t, t2, c2); /* c2 is core delta */ 744 745 /* calculate package delta only for 1st core in package */ 746 if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE) 747 delta_package(p, p2); 748 749 return 0; 750 } 751 752 void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 753 { 754 t->tsc = 0; 755 t->aperf = 0; 756 t->mperf = 0; 757 t->c1 = 0; 758 759 t->smi_count = 0; 760 t->extra_delta32 = 0; 761 t->extra_delta64 = 0; 762 763 /* tells format_counters to dump all fields from this set */ 764 t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE; 765 766 c->c3 = 0; 767 c->c6 = 0; 768 c->c7 = 0; 769 c->core_temp_c = 0; 770 771 p->pc2 = 0; 772 p->pc3 = 0; 773 p->pc6 = 0; 774 p->pc7 = 0; 775 p->pc8 = 0; 776 p->pc9 = 0; 777 p->pc10 = 0; 778 779 p->energy_pkg = 0; 780 p->energy_dram = 0; 781 p->energy_cores = 0; 782 p->energy_gfx = 0; 783 p->rapl_pkg_perf_status = 0; 784 p->rapl_dram_perf_status = 0; 785 p->pkg_temp_c = 0; 786 } 787 int sum_counters(struct thread_data *t, struct core_data *c, 788 struct pkg_data *p) 789 { 790 average.threads.tsc += t->tsc; 791 average.threads.aperf += t->aperf; 792 average.threads.mperf += t->mperf; 793 average.threads.c1 += t->c1; 794 795 average.threads.extra_delta32 += t->extra_delta32; 796 average.threads.extra_delta64 += t->extra_delta64; 797 798 /* sum per-core values only for 1st thread in core */ 799 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 800 return 0; 801 802 average.cores.c3 += c->c3; 803 average.cores.c6 += c->c6; 804 average.cores.c7 += c->c7; 805 806 average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c); 807 808 /* sum per-pkg values only for 1st core in pkg */ 809 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 810 return 0; 811 812 average.packages.pc2 += p->pc2; 813 average.packages.pc3 += p->pc3; 814 average.packages.pc6 += p->pc6; 815 average.packages.pc7 += p->pc7; 816 average.packages.pc8 += p->pc8; 817 average.packages.pc9 += p->pc9; 818 average.packages.pc10 += p->pc10; 819 820 average.packages.energy_pkg += p->energy_pkg; 821 average.packages.energy_dram += p->energy_dram; 822 average.packages.energy_cores += p->energy_cores; 823 average.packages.energy_gfx += p->energy_gfx; 824 825 average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c); 826 827 average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status; 828 average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status; 829 return 0; 830 } 831 /* 832 * sum the counters for all cpus in the system 833 * compute the weighted average 834 */ 835 void compute_average(struct thread_data *t, struct core_data *c, 836 struct pkg_data *p) 837 { 838 clear_counters(&average.threads, &average.cores, &average.packages); 839 840 for_all_cpus(sum_counters, t, c, p); 841 842 average.threads.tsc /= topo.num_cpus; 843 average.threads.aperf /= topo.num_cpus; 844 average.threads.mperf /= topo.num_cpus; 845 average.threads.c1 /= topo.num_cpus; 846 847 average.threads.extra_delta32 /= topo.num_cpus; 848 average.threads.extra_delta32 &= 0xFFFFFFFF; 849 850 average.threads.extra_delta64 /= topo.num_cpus; 851 852 average.cores.c3 /= topo.num_cores; 853 average.cores.c6 /= topo.num_cores; 854 average.cores.c7 /= topo.num_cores; 855 856 average.packages.pc2 /= topo.num_packages; 857 average.packages.pc3 /= topo.num_packages; 858 average.packages.pc6 /= topo.num_packages; 859 average.packages.pc7 /= topo.num_packages; 860 861 average.packages.pc8 /= topo.num_packages; 862 average.packages.pc9 /= topo.num_packages; 863 average.packages.pc10 /= topo.num_packages; 864 } 865 866 static unsigned long long rdtsc(void) 867 { 868 unsigned int low, high; 869 870 asm volatile("rdtsc" : "=a" (low), "=d" (high)); 871 872 return low | ((unsigned long long)high) << 32; 873 } 874 875 876 /* 877 * get_counters(...) 878 * migrate to cpu 879 * acquire and record local counters for that cpu 880 */ 881 int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) 882 { 883 int cpu = t->cpu_id; 884 unsigned long long msr; 885 886 if (cpu_migrate(cpu)) { 887 fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 888 return -1; 889 } 890 891 t->tsc = rdtsc(); /* we are running on local CPU of interest */ 892 893 if (has_aperf) { 894 if (get_msr(cpu, MSR_IA32_APERF, &t->aperf)) 895 return -3; 896 if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf)) 897 return -4; 898 } 899 900 if (do_smi) { 901 if (get_msr(cpu, MSR_SMI_COUNT, &msr)) 902 return -5; 903 t->smi_count = msr & 0xFFFFFFFF; 904 } 905 if (extra_delta_offset32) { 906 if (get_msr(cpu, extra_delta_offset32, &msr)) 907 return -5; 908 t->extra_delta32 = msr & 0xFFFFFFFF; 909 } 910 911 if (extra_delta_offset64) 912 if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64)) 913 return -5; 914 915 if (extra_msr_offset32) { 916 if (get_msr(cpu, extra_msr_offset32, &msr)) 917 return -5; 918 t->extra_msr32 = msr & 0xFFFFFFFF; 919 } 920 921 if (extra_msr_offset64) 922 if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64)) 923 return -5; 924 925 if (use_c1_residency_msr) { 926 if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1)) 927 return -6; 928 } 929 930 /* collect core counters only for 1st thread in core */ 931 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 932 return 0; 933 934 if (do_nhm_cstates && !do_slm_cstates) { 935 if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3)) 936 return -6; 937 } 938 939 if (do_nhm_cstates) { 940 if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6)) 941 return -7; 942 } 943 944 if (do_snb_cstates) 945 if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7)) 946 return -8; 947 948 if (do_dts) { 949 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr)) 950 return -9; 951 c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F); 952 } 953 954 955 /* collect package counters only for 1st core in package */ 956 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 957 return 0; 958 959 if (do_nhm_cstates && !do_slm_cstates) { 960 if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3)) 961 return -9; 962 if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6)) 963 return -10; 964 } 965 if (do_snb_cstates) { 966 if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2)) 967 return -11; 968 if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7)) 969 return -12; 970 } 971 if (do_c8_c9_c10) { 972 if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8)) 973 return -13; 974 if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9)) 975 return -13; 976 if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10)) 977 return -13; 978 } 979 if (do_rapl & RAPL_PKG) { 980 if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr)) 981 return -13; 982 p->energy_pkg = msr & 0xFFFFFFFF; 983 } 984 if (do_rapl & RAPL_CORES) { 985 if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr)) 986 return -14; 987 p->energy_cores = msr & 0xFFFFFFFF; 988 } 989 if (do_rapl & RAPL_DRAM) { 990 if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr)) 991 return -15; 992 p->energy_dram = msr & 0xFFFFFFFF; 993 } 994 if (do_rapl & RAPL_GFX) { 995 if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr)) 996 return -16; 997 p->energy_gfx = msr & 0xFFFFFFFF; 998 } 999 if (do_rapl & RAPL_PKG_PERF_STATUS) { 1000 if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr)) 1001 return -16; 1002 p->rapl_pkg_perf_status = msr & 0xFFFFFFFF; 1003 } 1004 if (do_rapl & RAPL_DRAM_PERF_STATUS) { 1005 if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr)) 1006 return -16; 1007 p->rapl_dram_perf_status = msr & 0xFFFFFFFF; 1008 } 1009 if (do_ptm) { 1010 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr)) 1011 return -17; 1012 p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F); 1013 } 1014 return 0; 1015 } 1016 1017 void print_verbose_header(void) 1018 { 1019 unsigned long long msr; 1020 unsigned int ratio; 1021 1022 if (!do_nehalem_platform_info) 1023 return; 1024 1025 get_msr(0, MSR_NHM_PLATFORM_INFO, &msr); 1026 1027 fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr); 1028 1029 ratio = (msr >> 40) & 0xFF; 1030 fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n", 1031 ratio, bclk, ratio * bclk); 1032 1033 ratio = (msr >> 8) & 0xFF; 1034 fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n", 1035 ratio, bclk, ratio * bclk); 1036 1037 get_msr(0, MSR_IA32_POWER_CTL, &msr); 1038 fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n", 1039 msr, msr & 0x2 ? "EN" : "DIS"); 1040 1041 if (!do_ivt_turbo_ratio_limit) 1042 goto print_nhm_turbo_ratio_limits; 1043 1044 get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr); 1045 1046 fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); 1047 1048 ratio = (msr >> 56) & 0xFF; 1049 if (ratio) 1050 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n", 1051 ratio, bclk, ratio * bclk); 1052 1053 ratio = (msr >> 48) & 0xFF; 1054 if (ratio) 1055 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n", 1056 ratio, bclk, ratio * bclk); 1057 1058 ratio = (msr >> 40) & 0xFF; 1059 if (ratio) 1060 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n", 1061 ratio, bclk, ratio * bclk); 1062 1063 ratio = (msr >> 32) & 0xFF; 1064 if (ratio) 1065 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n", 1066 ratio, bclk, ratio * bclk); 1067 1068 ratio = (msr >> 24) & 0xFF; 1069 if (ratio) 1070 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n", 1071 ratio, bclk, ratio * bclk); 1072 1073 ratio = (msr >> 16) & 0xFF; 1074 if (ratio) 1075 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n", 1076 ratio, bclk, ratio * bclk); 1077 1078 ratio = (msr >> 8) & 0xFF; 1079 if (ratio) 1080 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n", 1081 ratio, bclk, ratio * bclk); 1082 1083 ratio = (msr >> 0) & 0xFF; 1084 if (ratio) 1085 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n", 1086 ratio, bclk, ratio * bclk); 1087 1088 print_nhm_turbo_ratio_limits: 1089 get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr); 1090 1091 #define SNB_C1_AUTO_UNDEMOTE (1UL << 27) 1092 #define SNB_C3_AUTO_UNDEMOTE (1UL << 28) 1093 1094 fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr); 1095 1096 fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: ", 1097 (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "", 1098 (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "", 1099 (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "", 1100 (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "", 1101 (msr & (1 << 15)) ? "" : "UN", 1102 (unsigned int)msr & 7); 1103 1104 1105 switch(msr & 0x7) { 1106 case 0: 1107 fprintf(stderr, do_slm_cstates ? "no pkg states" : "pc0"); 1108 break; 1109 case 1: 1110 fprintf(stderr, do_slm_cstates ? "no pkg states" : do_snb_cstates ? "pc2" : "pc0"); 1111 break; 1112 case 2: 1113 fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc6-noret" : "pc3"); 1114 break; 1115 case 3: 1116 fprintf(stderr, do_slm_cstates ? "invalid" : "pc6"); 1117 break; 1118 case 4: 1119 fprintf(stderr, do_slm_cstates ? "pc4" : "pc7"); 1120 break; 1121 case 5: 1122 fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc7s" : "invalid"); 1123 break; 1124 case 6: 1125 fprintf(stderr, do_slm_cstates ? "pc6" : "invalid"); 1126 break; 1127 case 7: 1128 fprintf(stderr, do_slm_cstates ? "pc7" : "unlimited"); 1129 break; 1130 default: 1131 fprintf(stderr, "invalid"); 1132 } 1133 fprintf(stderr, ")\n"); 1134 1135 if (!do_nehalem_turbo_ratio_limit) 1136 return; 1137 1138 get_msr(0, MSR_NHM_TURBO_RATIO_LIMIT, &msr); 1139 1140 fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr); 1141 1142 ratio = (msr >> 56) & 0xFF; 1143 if (ratio) 1144 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n", 1145 ratio, bclk, ratio * bclk); 1146 1147 ratio = (msr >> 48) & 0xFF; 1148 if (ratio) 1149 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n", 1150 ratio, bclk, ratio * bclk); 1151 1152 ratio = (msr >> 40) & 0xFF; 1153 if (ratio) 1154 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n", 1155 ratio, bclk, ratio * bclk); 1156 1157 ratio = (msr >> 32) & 0xFF; 1158 if (ratio) 1159 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n", 1160 ratio, bclk, ratio * bclk); 1161 1162 ratio = (msr >> 24) & 0xFF; 1163 if (ratio) 1164 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", 1165 ratio, bclk, ratio * bclk); 1166 1167 ratio = (msr >> 16) & 0xFF; 1168 if (ratio) 1169 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", 1170 ratio, bclk, ratio * bclk); 1171 1172 ratio = (msr >> 8) & 0xFF; 1173 if (ratio) 1174 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", 1175 ratio, bclk, ratio * bclk); 1176 1177 ratio = (msr >> 0) & 0xFF; 1178 if (ratio) 1179 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", 1180 ratio, bclk, ratio * bclk); 1181 } 1182 1183 void free_all_buffers(void) 1184 { 1185 CPU_FREE(cpu_present_set); 1186 cpu_present_set = NULL; 1187 cpu_present_set = 0; 1188 1189 CPU_FREE(cpu_affinity_set); 1190 cpu_affinity_set = NULL; 1191 cpu_affinity_setsize = 0; 1192 1193 free(thread_even); 1194 free(core_even); 1195 free(package_even); 1196 1197 thread_even = NULL; 1198 core_even = NULL; 1199 package_even = NULL; 1200 1201 free(thread_odd); 1202 free(core_odd); 1203 free(package_odd); 1204 1205 thread_odd = NULL; 1206 core_odd = NULL; 1207 package_odd = NULL; 1208 1209 free(output_buffer); 1210 output_buffer = NULL; 1211 outp = NULL; 1212 } 1213 1214 /* 1215 * Open a file, and exit on failure 1216 */ 1217 FILE *fopen_or_die(const char *path, const char *mode) 1218 { 1219 FILE *filep = fopen(path, "r"); 1220 if (!filep) 1221 err(1, "%s: open failed", path); 1222 return filep; 1223 } 1224 1225 /* 1226 * Parse a file containing a single int. 1227 */ 1228 int parse_int_file(const char *fmt, ...) 1229 { 1230 va_list args; 1231 char path[PATH_MAX]; 1232 FILE *filep; 1233 int value; 1234 1235 va_start(args, fmt); 1236 vsnprintf(path, sizeof(path), fmt, args); 1237 va_end(args); 1238 filep = fopen_or_die(path, "r"); 1239 if (fscanf(filep, "%d", &value) != 1) 1240 err(1, "%s: failed to parse number from file", path); 1241 fclose(filep); 1242 return value; 1243 } 1244 1245 /* 1246 * cpu_is_first_sibling_in_core(cpu) 1247 * return 1 if given CPU is 1st HT sibling in the core 1248 */ 1249 int cpu_is_first_sibling_in_core(int cpu) 1250 { 1251 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); 1252 } 1253 1254 /* 1255 * cpu_is_first_core_in_package(cpu) 1256 * return 1 if given CPU is 1st core in package 1257 */ 1258 int cpu_is_first_core_in_package(int cpu) 1259 { 1260 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu); 1261 } 1262 1263 int get_physical_package_id(int cpu) 1264 { 1265 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu); 1266 } 1267 1268 int get_core_id(int cpu) 1269 { 1270 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); 1271 } 1272 1273 int get_num_ht_siblings(int cpu) 1274 { 1275 char path[80]; 1276 FILE *filep; 1277 int sib1, sib2; 1278 int matches; 1279 char character; 1280 1281 sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); 1282 filep = fopen_or_die(path, "r"); 1283 /* 1284 * file format: 1285 * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4) 1286 * otherwinse 1 sibling (self). 1287 */ 1288 matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2); 1289 1290 fclose(filep); 1291 1292 if (matches == 3) 1293 return 2; 1294 else 1295 return 1; 1296 } 1297 1298 /* 1299 * run func(thread, core, package) in topology order 1300 * skip non-present cpus 1301 */ 1302 1303 int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *, 1304 struct pkg_data *, struct thread_data *, struct core_data *, 1305 struct pkg_data *), struct thread_data *thread_base, 1306 struct core_data *core_base, struct pkg_data *pkg_base, 1307 struct thread_data *thread_base2, struct core_data *core_base2, 1308 struct pkg_data *pkg_base2) 1309 { 1310 int retval, pkg_no, core_no, thread_no; 1311 1312 for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { 1313 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { 1314 for (thread_no = 0; thread_no < 1315 topo.num_threads_per_core; ++thread_no) { 1316 struct thread_data *t, *t2; 1317 struct core_data *c, *c2; 1318 struct pkg_data *p, *p2; 1319 1320 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); 1321 1322 if (cpu_is_not_present(t->cpu_id)) 1323 continue; 1324 1325 t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no); 1326 1327 c = GET_CORE(core_base, core_no, pkg_no); 1328 c2 = GET_CORE(core_base2, core_no, pkg_no); 1329 1330 p = GET_PKG(pkg_base, pkg_no); 1331 p2 = GET_PKG(pkg_base2, pkg_no); 1332 1333 retval = func(t, c, p, t2, c2, p2); 1334 if (retval) 1335 return retval; 1336 } 1337 } 1338 } 1339 return 0; 1340 } 1341 1342 /* 1343 * run func(cpu) on every cpu in /proc/stat 1344 * return max_cpu number 1345 */ 1346 int for_all_proc_cpus(int (func)(int)) 1347 { 1348 FILE *fp; 1349 int cpu_num; 1350 int retval; 1351 1352 fp = fopen_or_die(proc_stat, "r"); 1353 1354 retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n"); 1355 if (retval != 0) 1356 err(1, "%s: failed to parse format", proc_stat); 1357 1358 while (1) { 1359 retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num); 1360 if (retval != 1) 1361 break; 1362 1363 retval = func(cpu_num); 1364 if (retval) { 1365 fclose(fp); 1366 return(retval); 1367 } 1368 } 1369 fclose(fp); 1370 return 0; 1371 } 1372 1373 void re_initialize(void) 1374 { 1375 free_all_buffers(); 1376 setup_all_buffers(); 1377 printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus); 1378 } 1379 1380 1381 /* 1382 * count_cpus() 1383 * remember the last one seen, it will be the max 1384 */ 1385 int count_cpus(int cpu) 1386 { 1387 if (topo.max_cpu_num < cpu) 1388 topo.max_cpu_num = cpu; 1389 1390 topo.num_cpus += 1; 1391 return 0; 1392 } 1393 int mark_cpu_present(int cpu) 1394 { 1395 CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set); 1396 return 0; 1397 } 1398 1399 void turbostat_loop() 1400 { 1401 int retval; 1402 int restarted = 0; 1403 1404 restart: 1405 restarted++; 1406 1407 retval = for_all_cpus(get_counters, EVEN_COUNTERS); 1408 if (retval < -1) { 1409 exit(retval); 1410 } else if (retval == -1) { 1411 if (restarted > 1) { 1412 exit(retval); 1413 } 1414 re_initialize(); 1415 goto restart; 1416 } 1417 restarted = 0; 1418 gettimeofday(&tv_even, (struct timezone *)NULL); 1419 1420 while (1) { 1421 if (for_all_proc_cpus(cpu_is_not_present)) { 1422 re_initialize(); 1423 goto restart; 1424 } 1425 sleep(interval_sec); 1426 retval = for_all_cpus(get_counters, ODD_COUNTERS); 1427 if (retval < -1) { 1428 exit(retval); 1429 } else if (retval == -1) { 1430 re_initialize(); 1431 goto restart; 1432 } 1433 gettimeofday(&tv_odd, (struct timezone *)NULL); 1434 timersub(&tv_odd, &tv_even, &tv_delta); 1435 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); 1436 compute_average(EVEN_COUNTERS); 1437 format_all_counters(EVEN_COUNTERS); 1438 flush_stdout(); 1439 sleep(interval_sec); 1440 retval = for_all_cpus(get_counters, EVEN_COUNTERS); 1441 if (retval < -1) { 1442 exit(retval); 1443 } else if (retval == -1) { 1444 re_initialize(); 1445 goto restart; 1446 } 1447 gettimeofday(&tv_even, (struct timezone *)NULL); 1448 timersub(&tv_even, &tv_odd, &tv_delta); 1449 for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS); 1450 compute_average(ODD_COUNTERS); 1451 format_all_counters(ODD_COUNTERS); 1452 flush_stdout(); 1453 } 1454 } 1455 1456 void check_dev_msr() 1457 { 1458 struct stat sb; 1459 1460 if (stat("/dev/cpu/0/msr", &sb)) 1461 err(-5, "no /dev/cpu/0/msr\n" 1462 "Try \"# modprobe msr\""); 1463 } 1464 1465 void check_super_user() 1466 { 1467 if (getuid() != 0) 1468 errx(-6, "must be root"); 1469 } 1470 1471 int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model) 1472 { 1473 if (!genuine_intel) 1474 return 0; 1475 1476 if (family != 6) 1477 return 0; 1478 1479 switch (model) { 1480 case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */ 1481 case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */ 1482 case 0x1F: /* Core i7 and i5 Processor - Nehalem */ 1483 case 0x25: /* Westmere Client - Clarkdale, Arrandale */ 1484 case 0x2C: /* Westmere EP - Gulftown */ 1485 case 0x2A: /* SNB */ 1486 case 0x2D: /* SNB Xeon */ 1487 case 0x3A: /* IVB */ 1488 case 0x3E: /* IVB Xeon */ 1489 case 0x3C: /* HSW */ 1490 case 0x3F: /* HSX */ 1491 case 0x45: /* HSW */ 1492 case 0x46: /* HSW */ 1493 case 0x37: /* BYT */ 1494 case 0x4D: /* AVN */ 1495 case 0x3D: /* BDW */ 1496 case 0x4F: /* BDX */ 1497 case 0x56: /* BDX-DE */ 1498 return 1; 1499 case 0x2E: /* Nehalem-EX Xeon - Beckton */ 1500 case 0x2F: /* Westmere-EX Xeon - Eagleton */ 1501 default: 1502 return 0; 1503 } 1504 } 1505 int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model) 1506 { 1507 if (!genuine_intel) 1508 return 0; 1509 1510 if (family != 6) 1511 return 0; 1512 1513 switch (model) { 1514 case 0x3E: /* IVB Xeon */ 1515 return 1; 1516 default: 1517 return 0; 1518 } 1519 } 1520 1521 /* 1522 * print_epb() 1523 * Decode the ENERGY_PERF_BIAS MSR 1524 */ 1525 int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p) 1526 { 1527 unsigned long long msr; 1528 char *epb_string; 1529 int cpu; 1530 1531 if (!has_epb) 1532 return 0; 1533 1534 cpu = t->cpu_id; 1535 1536 /* EPB is per-package */ 1537 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 1538 return 0; 1539 1540 if (cpu_migrate(cpu)) { 1541 fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 1542 return -1; 1543 } 1544 1545 if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr)) 1546 return 0; 1547 1548 switch (msr & 0x7) { 1549 case ENERGY_PERF_BIAS_PERFORMANCE: 1550 epb_string = "performance"; 1551 break; 1552 case ENERGY_PERF_BIAS_NORMAL: 1553 epb_string = "balanced"; 1554 break; 1555 case ENERGY_PERF_BIAS_POWERSAVE: 1556 epb_string = "powersave"; 1557 break; 1558 default: 1559 epb_string = "custom"; 1560 break; 1561 } 1562 fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string); 1563 1564 return 0; 1565 } 1566 1567 #define RAPL_POWER_GRANULARITY 0x7FFF /* 15 bit power granularity */ 1568 #define RAPL_TIME_GRANULARITY 0x3F /* 6 bit time granularity */ 1569 1570 double get_tdp(model) 1571 { 1572 unsigned long long msr; 1573 1574 if (do_rapl & RAPL_PKG_POWER_INFO) 1575 if (!get_msr(0, MSR_PKG_POWER_INFO, &msr)) 1576 return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units; 1577 1578 switch (model) { 1579 case 0x37: 1580 case 0x4D: 1581 return 30.0; 1582 default: 1583 return 135.0; 1584 } 1585 } 1586 1587 1588 /* 1589 * rapl_probe() 1590 * 1591 * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units 1592 */ 1593 void rapl_probe(unsigned int family, unsigned int model) 1594 { 1595 unsigned long long msr; 1596 unsigned int time_unit; 1597 double tdp; 1598 1599 if (!genuine_intel) 1600 return; 1601 1602 if (family != 6) 1603 return; 1604 1605 switch (model) { 1606 case 0x2A: 1607 case 0x3A: 1608 case 0x3C: /* HSW */ 1609 case 0x45: /* HSW */ 1610 case 0x46: /* HSW */ 1611 case 0x3D: /* BDW */ 1612 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO; 1613 break; 1614 case 0x3F: /* HSX */ 1615 case 0x4F: /* BDX */ 1616 case 0x56: /* BDX-DE */ 1617 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO; 1618 break; 1619 case 0x2D: 1620 case 0x3E: 1621 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO; 1622 break; 1623 case 0x37: /* BYT */ 1624 case 0x4D: /* AVN */ 1625 do_rapl = RAPL_PKG | RAPL_CORES ; 1626 break; 1627 default: 1628 return; 1629 } 1630 1631 /* units on package 0, verify later other packages match */ 1632 if (get_msr(0, MSR_RAPL_POWER_UNIT, &msr)) 1633 return; 1634 1635 rapl_power_units = 1.0 / (1 << (msr & 0xF)); 1636 if (model == 0x37) 1637 rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000; 1638 else 1639 rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F)); 1640 1641 time_unit = msr >> 16 & 0xF; 1642 if (time_unit == 0) 1643 time_unit = 0xA; 1644 1645 rapl_time_units = 1.0 / (1 << (time_unit)); 1646 1647 tdp = get_tdp(model); 1648 1649 rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp; 1650 if (verbose) 1651 fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp); 1652 1653 return; 1654 } 1655 1656 int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p) 1657 { 1658 unsigned long long msr; 1659 unsigned int dts; 1660 int cpu; 1661 1662 if (!(do_dts || do_ptm)) 1663 return 0; 1664 1665 cpu = t->cpu_id; 1666 1667 /* DTS is per-core, no need to print for each thread */ 1668 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) 1669 return 0; 1670 1671 if (cpu_migrate(cpu)) { 1672 fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 1673 return -1; 1674 } 1675 1676 if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) { 1677 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr)) 1678 return 0; 1679 1680 dts = (msr >> 16) & 0x7F; 1681 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n", 1682 cpu, msr, tcc_activation_temp - dts); 1683 1684 #ifdef THERM_DEBUG 1685 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr)) 1686 return 0; 1687 1688 dts = (msr >> 16) & 0x7F; 1689 dts2 = (msr >> 8) & 0x7F; 1690 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", 1691 cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); 1692 #endif 1693 } 1694 1695 1696 if (do_dts) { 1697 unsigned int resolution; 1698 1699 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr)) 1700 return 0; 1701 1702 dts = (msr >> 16) & 0x7F; 1703 resolution = (msr >> 27) & 0xF; 1704 fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n", 1705 cpu, msr, tcc_activation_temp - dts, resolution); 1706 1707 #ifdef THERM_DEBUG 1708 if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr)) 1709 return 0; 1710 1711 dts = (msr >> 16) & 0x7F; 1712 dts2 = (msr >> 8) & 0x7F; 1713 fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n", 1714 cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2); 1715 #endif 1716 } 1717 1718 return 0; 1719 } 1720 1721 void print_power_limit_msr(int cpu, unsigned long long msr, char *label) 1722 { 1723 fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n", 1724 cpu, label, 1725 ((msr >> 15) & 1) ? "EN" : "DIS", 1726 ((msr >> 0) & 0x7FFF) * rapl_power_units, 1727 (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units, 1728 (((msr >> 16) & 1) ? "EN" : "DIS")); 1729 1730 return; 1731 } 1732 1733 int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p) 1734 { 1735 unsigned long long msr; 1736 int cpu; 1737 1738 if (!do_rapl) 1739 return 0; 1740 1741 /* RAPL counters are per package, so print only for 1st thread/package */ 1742 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 1743 return 0; 1744 1745 cpu = t->cpu_id; 1746 if (cpu_migrate(cpu)) { 1747 fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 1748 return -1; 1749 } 1750 1751 if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr)) 1752 return -1; 1753 1754 if (verbose) { 1755 fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx " 1756 "(%f Watts, %f Joules, %f sec.)\n", cpu, msr, 1757 rapl_power_units, rapl_energy_units, rapl_time_units); 1758 } 1759 if (do_rapl & RAPL_PKG_POWER_INFO) { 1760 1761 if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr)) 1762 return -5; 1763 1764 1765 fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", 1766 cpu, msr, 1767 ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1768 ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1769 ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1770 ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units); 1771 1772 } 1773 if (do_rapl & RAPL_PKG) { 1774 1775 if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr)) 1776 return -9; 1777 1778 fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n", 1779 cpu, msr, (msr >> 63) & 1 ? "": "UN"); 1780 1781 print_power_limit_msr(cpu, msr, "PKG Limit #1"); 1782 fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n", 1783 cpu, 1784 ((msr >> 47) & 1) ? "EN" : "DIS", 1785 ((msr >> 32) & 0x7FFF) * rapl_power_units, 1786 (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units, 1787 ((msr >> 48) & 1) ? "EN" : "DIS"); 1788 } 1789 1790 if (do_rapl & RAPL_DRAM) { 1791 if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr)) 1792 return -6; 1793 1794 1795 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n", 1796 cpu, msr, 1797 ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1798 ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1799 ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units, 1800 ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units); 1801 1802 1803 if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr)) 1804 return -9; 1805 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n", 1806 cpu, msr, (msr >> 31) & 1 ? "": "UN"); 1807 1808 print_power_limit_msr(cpu, msr, "DRAM Limit"); 1809 } 1810 if (do_rapl & RAPL_CORE_POLICY) { 1811 if (verbose) { 1812 if (get_msr(cpu, MSR_PP0_POLICY, &msr)) 1813 return -7; 1814 1815 fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF); 1816 } 1817 } 1818 if (do_rapl & RAPL_CORES) { 1819 if (verbose) { 1820 1821 if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr)) 1822 return -9; 1823 fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n", 1824 cpu, msr, (msr >> 31) & 1 ? "": "UN"); 1825 print_power_limit_msr(cpu, msr, "Cores Limit"); 1826 } 1827 } 1828 if (do_rapl & RAPL_GFX) { 1829 if (verbose) { 1830 if (get_msr(cpu, MSR_PP1_POLICY, &msr)) 1831 return -8; 1832 1833 fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF); 1834 1835 if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr)) 1836 return -9; 1837 fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n", 1838 cpu, msr, (msr >> 31) & 1 ? "": "UN"); 1839 print_power_limit_msr(cpu, msr, "GFX Limit"); 1840 } 1841 } 1842 return 0; 1843 } 1844 1845 1846 int is_snb(unsigned int family, unsigned int model) 1847 { 1848 if (!genuine_intel) 1849 return 0; 1850 1851 switch (model) { 1852 case 0x2A: 1853 case 0x2D: 1854 case 0x3A: /* IVB */ 1855 case 0x3E: /* IVB Xeon */ 1856 case 0x3C: /* HSW */ 1857 case 0x3F: /* HSW */ 1858 case 0x45: /* HSW */ 1859 case 0x46: /* HSW */ 1860 case 0x3D: /* BDW */ 1861 case 0x4F: /* BDX */ 1862 case 0x56: /* BDX-DE */ 1863 return 1; 1864 } 1865 return 0; 1866 } 1867 1868 int has_c8_c9_c10(unsigned int family, unsigned int model) 1869 { 1870 if (!genuine_intel) 1871 return 0; 1872 1873 switch (model) { 1874 case 0x45: /* HSW */ 1875 case 0x3D: /* BDW */ 1876 return 1; 1877 } 1878 return 0; 1879 } 1880 1881 1882 int is_slm(unsigned int family, unsigned int model) 1883 { 1884 if (!genuine_intel) 1885 return 0; 1886 switch (model) { 1887 case 0x37: /* BYT */ 1888 case 0x4D: /* AVN */ 1889 return 1; 1890 } 1891 return 0; 1892 } 1893 1894 #define SLM_BCLK_FREQS 5 1895 double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0}; 1896 1897 double slm_bclk(void) 1898 { 1899 unsigned long long msr = 3; 1900 unsigned int i; 1901 double freq; 1902 1903 if (get_msr(0, MSR_FSB_FREQ, &msr)) 1904 fprintf(stderr, "SLM BCLK: unknown\n"); 1905 1906 i = msr & 0xf; 1907 if (i >= SLM_BCLK_FREQS) { 1908 fprintf(stderr, "SLM BCLK[%d] invalid\n", i); 1909 msr = 3; 1910 } 1911 freq = slm_freq_table[i]; 1912 1913 fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq); 1914 1915 return freq; 1916 } 1917 1918 double discover_bclk(unsigned int family, unsigned int model) 1919 { 1920 if (is_snb(family, model)) 1921 return 100.00; 1922 else if (is_slm(family, model)) 1923 return slm_bclk(); 1924 else 1925 return 133.33; 1926 } 1927 1928 /* 1929 * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where 1930 * the Thermal Control Circuit (TCC) activates. 1931 * This is usually equal to tjMax. 1932 * 1933 * Older processors do not have this MSR, so there we guess, 1934 * but also allow cmdline over-ride with -T. 1935 * 1936 * Several MSR temperature values are in units of degrees-C 1937 * below this value, including the Digital Thermal Sensor (DTS), 1938 * Package Thermal Management Sensor (PTM), and thermal event thresholds. 1939 */ 1940 int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p) 1941 { 1942 unsigned long long msr; 1943 unsigned int target_c_local; 1944 int cpu; 1945 1946 /* tcc_activation_temp is used only for dts or ptm */ 1947 if (!(do_dts || do_ptm)) 1948 return 0; 1949 1950 /* this is a per-package concept */ 1951 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) 1952 return 0; 1953 1954 cpu = t->cpu_id; 1955 if (cpu_migrate(cpu)) { 1956 fprintf(stderr, "Could not migrate to CPU %d\n", cpu); 1957 return -1; 1958 } 1959 1960 if (tcc_activation_temp_override != 0) { 1961 tcc_activation_temp = tcc_activation_temp_override; 1962 fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n", 1963 cpu, tcc_activation_temp); 1964 return 0; 1965 } 1966 1967 /* Temperature Target MSR is Nehalem and newer only */ 1968 if (!do_nehalem_platform_info) 1969 goto guess; 1970 1971 if (get_msr(0, MSR_IA32_TEMPERATURE_TARGET, &msr)) 1972 goto guess; 1973 1974 target_c_local = (msr >> 16) & 0xFF; 1975 1976 if (verbose) 1977 fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n", 1978 cpu, msr, target_c_local); 1979 1980 if (!target_c_local) 1981 goto guess; 1982 1983 tcc_activation_temp = target_c_local; 1984 1985 return 0; 1986 1987 guess: 1988 tcc_activation_temp = TJMAX_DEFAULT; 1989 fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n", 1990 cpu, tcc_activation_temp); 1991 1992 return 0; 1993 } 1994 void check_cpuid() 1995 { 1996 unsigned int eax, ebx, ecx, edx, max_level; 1997 unsigned int fms, family, model, stepping; 1998 1999 eax = ebx = ecx = edx = 0; 2000 2001 __get_cpuid(0, &max_level, &ebx, &ecx, &edx); 2002 2003 if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e) 2004 genuine_intel = 1; 2005 2006 if (verbose) 2007 fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ", 2008 (char *)&ebx, (char *)&edx, (char *)&ecx); 2009 2010 __get_cpuid(1, &fms, &ebx, &ecx, &edx); 2011 family = (fms >> 8) & 0xf; 2012 model = (fms >> 4) & 0xf; 2013 stepping = fms & 0xf; 2014 if (family == 6 || family == 0xf) 2015 model += ((fms >> 16) & 0xf) << 4; 2016 2017 if (verbose) 2018 fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n", 2019 max_level, family, model, stepping, family, model, stepping); 2020 2021 if (!(edx & (1 << 5))) 2022 errx(1, "CPUID: no MSR"); 2023 2024 /* 2025 * check max extended function levels of CPUID. 2026 * This is needed to check for invariant TSC. 2027 * This check is valid for both Intel and AMD. 2028 */ 2029 ebx = ecx = edx = 0; 2030 __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx); 2031 2032 if (max_level < 0x80000007) 2033 errx(1, "CPUID: no invariant TSC (max_level 0x%x)", max_level); 2034 2035 /* 2036 * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8 2037 * this check is valid for both Intel and AMD 2038 */ 2039 __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx); 2040 has_invariant_tsc = edx & (1 << 8); 2041 2042 if (!has_invariant_tsc) 2043 errx(1, "No invariant TSC"); 2044 2045 /* 2046 * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0 2047 * this check is valid for both Intel and AMD 2048 */ 2049 2050 __get_cpuid(0x6, &eax, &ebx, &ecx, &edx); 2051 has_aperf = ecx & (1 << 0); 2052 do_dts = eax & (1 << 0); 2053 do_ptm = eax & (1 << 6); 2054 has_epb = ecx & (1 << 3); 2055 2056 if (verbose) 2057 fprintf(stderr, "CPUID(6): %s%s%s%s\n", 2058 has_aperf ? "APERF" : "No APERF!", 2059 do_dts ? ", DTS" : "", 2060 do_ptm ? ", PTM": "", 2061 has_epb ? ", EPB": ""); 2062 2063 if (!has_aperf) 2064 errx(-1, "No APERF"); 2065 2066 do_nehalem_platform_info = genuine_intel && has_invariant_tsc; 2067 do_nhm_cstates = genuine_intel; /* all Intel w/ non-stop TSC have NHM counters */ 2068 do_smi = do_nhm_cstates; 2069 do_snb_cstates = is_snb(family, model); 2070 do_c8_c9_c10 = has_c8_c9_c10(family, model); 2071 do_slm_cstates = is_slm(family, model); 2072 bclk = discover_bclk(family, model); 2073 2074 do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model); 2075 do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model); 2076 rapl_probe(family, model); 2077 2078 return; 2079 } 2080 2081 2082 void usage() 2083 { 2084 errx(1, "%s: [-v][-R][-T][-p|-P|-S][-c MSR#][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n", 2085 progname); 2086 } 2087 2088 2089 /* 2090 * in /dev/cpu/ return success for names that are numbers 2091 * ie. filter out ".", "..", "microcode". 2092 */ 2093 int dir_filter(const struct dirent *dirp) 2094 { 2095 if (isdigit(dirp->d_name[0])) 2096 return 1; 2097 else 2098 return 0; 2099 } 2100 2101 int open_dev_cpu_msr(int dummy1) 2102 { 2103 return 0; 2104 } 2105 2106 void topology_probe() 2107 { 2108 int i; 2109 int max_core_id = 0; 2110 int max_package_id = 0; 2111 int max_siblings = 0; 2112 struct cpu_topology { 2113 int core_id; 2114 int physical_package_id; 2115 } *cpus; 2116 2117 /* Initialize num_cpus, max_cpu_num */ 2118 topo.num_cpus = 0; 2119 topo.max_cpu_num = 0; 2120 for_all_proc_cpus(count_cpus); 2121 if (!summary_only && topo.num_cpus > 1) 2122 show_cpu = 1; 2123 2124 if (verbose > 1) 2125 fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); 2126 2127 cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology)); 2128 if (cpus == NULL) 2129 err(1, "calloc cpus"); 2130 2131 /* 2132 * Allocate and initialize cpu_present_set 2133 */ 2134 cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1)); 2135 if (cpu_present_set == NULL) 2136 err(3, "CPU_ALLOC"); 2137 cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); 2138 CPU_ZERO_S(cpu_present_setsize, cpu_present_set); 2139 for_all_proc_cpus(mark_cpu_present); 2140 2141 /* 2142 * Allocate and initialize cpu_affinity_set 2143 */ 2144 cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1)); 2145 if (cpu_affinity_set == NULL) 2146 err(3, "CPU_ALLOC"); 2147 cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); 2148 CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); 2149 2150 2151 /* 2152 * For online cpus 2153 * find max_core_id, max_package_id 2154 */ 2155 for (i = 0; i <= topo.max_cpu_num; ++i) { 2156 int siblings; 2157 2158 if (cpu_is_not_present(i)) { 2159 if (verbose > 1) 2160 fprintf(stderr, "cpu%d NOT PRESENT\n", i); 2161 continue; 2162 } 2163 cpus[i].core_id = get_core_id(i); 2164 if (cpus[i].core_id > max_core_id) 2165 max_core_id = cpus[i].core_id; 2166 2167 cpus[i].physical_package_id = get_physical_package_id(i); 2168 if (cpus[i].physical_package_id > max_package_id) 2169 max_package_id = cpus[i].physical_package_id; 2170 2171 siblings = get_num_ht_siblings(i); 2172 if (siblings > max_siblings) 2173 max_siblings = siblings; 2174 if (verbose > 1) 2175 fprintf(stderr, "cpu %d pkg %d core %d\n", 2176 i, cpus[i].physical_package_id, cpus[i].core_id); 2177 } 2178 topo.num_cores_per_pkg = max_core_id + 1; 2179 if (verbose > 1) 2180 fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n", 2181 max_core_id, topo.num_cores_per_pkg); 2182 if (!summary_only && topo.num_cores_per_pkg > 1) 2183 show_core = 1; 2184 2185 topo.num_packages = max_package_id + 1; 2186 if (verbose > 1) 2187 fprintf(stderr, "max_package_id %d, sizing for %d packages\n", 2188 max_package_id, topo.num_packages); 2189 if (!summary_only && topo.num_packages > 1) 2190 show_pkg = 1; 2191 2192 topo.num_threads_per_core = max_siblings; 2193 if (verbose > 1) 2194 fprintf(stderr, "max_siblings %d\n", max_siblings); 2195 2196 free(cpus); 2197 } 2198 2199 void 2200 allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p) 2201 { 2202 int i; 2203 2204 *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg * 2205 topo.num_packages, sizeof(struct thread_data)); 2206 if (*t == NULL) 2207 goto error; 2208 2209 for (i = 0; i < topo.num_threads_per_core * 2210 topo.num_cores_per_pkg * topo.num_packages; i++) 2211 (*t)[i].cpu_id = -1; 2212 2213 *c = calloc(topo.num_cores_per_pkg * topo.num_packages, 2214 sizeof(struct core_data)); 2215 if (*c == NULL) 2216 goto error; 2217 2218 for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++) 2219 (*c)[i].core_id = -1; 2220 2221 *p = calloc(topo.num_packages, sizeof(struct pkg_data)); 2222 if (*p == NULL) 2223 goto error; 2224 2225 for (i = 0; i < topo.num_packages; i++) 2226 (*p)[i].package_id = i; 2227 2228 return; 2229 error: 2230 err(1, "calloc counters"); 2231 } 2232 /* 2233 * init_counter() 2234 * 2235 * set cpu_id, core_num, pkg_num 2236 * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE 2237 * 2238 * increment topo.num_cores when 1st core in pkg seen 2239 */ 2240 void init_counter(struct thread_data *thread_base, struct core_data *core_base, 2241 struct pkg_data *pkg_base, int thread_num, int core_num, 2242 int pkg_num, int cpu_id) 2243 { 2244 struct thread_data *t; 2245 struct core_data *c; 2246 struct pkg_data *p; 2247 2248 t = GET_THREAD(thread_base, thread_num, core_num, pkg_num); 2249 c = GET_CORE(core_base, core_num, pkg_num); 2250 p = GET_PKG(pkg_base, pkg_num); 2251 2252 t->cpu_id = cpu_id; 2253 if (thread_num == 0) { 2254 t->flags |= CPU_IS_FIRST_THREAD_IN_CORE; 2255 if (cpu_is_first_core_in_package(cpu_id)) 2256 t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE; 2257 } 2258 2259 c->core_id = core_num; 2260 p->package_id = pkg_num; 2261 } 2262 2263 2264 int initialize_counters(int cpu_id) 2265 { 2266 int my_thread_id, my_core_id, my_package_id; 2267 2268 my_package_id = get_physical_package_id(cpu_id); 2269 my_core_id = get_core_id(cpu_id); 2270 2271 if (cpu_is_first_sibling_in_core(cpu_id)) { 2272 my_thread_id = 0; 2273 topo.num_cores++; 2274 } else { 2275 my_thread_id = 1; 2276 } 2277 2278 init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); 2279 init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); 2280 return 0; 2281 } 2282 2283 void allocate_output_buffer() 2284 { 2285 output_buffer = calloc(1, (1 + topo.num_cpus) * 1024); 2286 outp = output_buffer; 2287 if (outp == NULL) 2288 err(-1, "calloc output buffer"); 2289 } 2290 2291 void setup_all_buffers(void) 2292 { 2293 topology_probe(); 2294 allocate_counters(&thread_even, &core_even, &package_even); 2295 allocate_counters(&thread_odd, &core_odd, &package_odd); 2296 allocate_output_buffer(); 2297 for_all_proc_cpus(initialize_counters); 2298 } 2299 2300 void turbostat_init() 2301 { 2302 check_cpuid(); 2303 2304 check_dev_msr(); 2305 check_super_user(); 2306 2307 setup_all_buffers(); 2308 2309 if (verbose) 2310 print_verbose_header(); 2311 2312 if (verbose) 2313 for_all_cpus(print_epb, ODD_COUNTERS); 2314 2315 if (verbose) 2316 for_all_cpus(print_rapl, ODD_COUNTERS); 2317 2318 for_all_cpus(set_temperature_target, ODD_COUNTERS); 2319 2320 if (verbose) 2321 for_all_cpus(print_thermal, ODD_COUNTERS); 2322 } 2323 2324 int fork_it(char **argv) 2325 { 2326 pid_t child_pid; 2327 int status; 2328 2329 status = for_all_cpus(get_counters, EVEN_COUNTERS); 2330 if (status) 2331 exit(status); 2332 /* clear affinity side-effect of get_counters() */ 2333 sched_setaffinity(0, cpu_present_setsize, cpu_present_set); 2334 gettimeofday(&tv_even, (struct timezone *)NULL); 2335 2336 child_pid = fork(); 2337 if (!child_pid) { 2338 /* child */ 2339 execvp(argv[0], argv); 2340 } else { 2341 2342 /* parent */ 2343 if (child_pid == -1) 2344 err(1, "fork"); 2345 2346 signal(SIGINT, SIG_IGN); 2347 signal(SIGQUIT, SIG_IGN); 2348 if (waitpid(child_pid, &status, 0) == -1) 2349 err(status, "waitpid"); 2350 } 2351 /* 2352 * n.b. fork_it() does not check for errors from for_all_cpus() 2353 * because re-starting is problematic when forking 2354 */ 2355 for_all_cpus(get_counters, ODD_COUNTERS); 2356 gettimeofday(&tv_odd, (struct timezone *)NULL); 2357 timersub(&tv_odd, &tv_even, &tv_delta); 2358 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); 2359 compute_average(EVEN_COUNTERS); 2360 format_all_counters(EVEN_COUNTERS); 2361 flush_stderr(); 2362 2363 fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); 2364 2365 return status; 2366 } 2367 2368 int get_and_dump_counters(void) 2369 { 2370 int status; 2371 2372 status = for_all_cpus(get_counters, ODD_COUNTERS); 2373 if (status) 2374 return status; 2375 2376 status = for_all_cpus(dump_counters, ODD_COUNTERS); 2377 if (status) 2378 return status; 2379 2380 flush_stdout(); 2381 2382 return status; 2383 } 2384 2385 void cmdline(int argc, char **argv) 2386 { 2387 int opt; 2388 2389 progname = argv[0]; 2390 2391 while ((opt = getopt(argc, argv, "+pPsSvi:c:C:m:M:RJT:")) != -1) { 2392 switch (opt) { 2393 case 'p': 2394 show_core_only++; 2395 break; 2396 case 'P': 2397 show_pkg_only++; 2398 break; 2399 case 's': 2400 dump_only++; 2401 break; 2402 case 'S': 2403 summary_only++; 2404 break; 2405 case 'v': 2406 verbose++; 2407 break; 2408 case 'i': 2409 interval_sec = atoi(optarg); 2410 break; 2411 case 'c': 2412 sscanf(optarg, "%x", &extra_delta_offset32); 2413 break; 2414 case 'C': 2415 sscanf(optarg, "%x", &extra_delta_offset64); 2416 break; 2417 case 'm': 2418 sscanf(optarg, "%x", &extra_msr_offset32); 2419 break; 2420 case 'M': 2421 sscanf(optarg, "%x", &extra_msr_offset64); 2422 break; 2423 case 'R': 2424 rapl_verbose++; 2425 break; 2426 case 'T': 2427 tcc_activation_temp_override = atoi(optarg); 2428 break; 2429 case 'J': 2430 rapl_joules++; 2431 break; 2432 2433 default: 2434 usage(); 2435 } 2436 } 2437 } 2438 2439 int main(int argc, char **argv) 2440 { 2441 cmdline(argc, argv); 2442 2443 if (verbose) 2444 fprintf(stderr, "turbostat v3.7 Feb 6, 2014" 2445 " - Len Brown <lenb@kernel.org>\n"); 2446 2447 turbostat_init(); 2448 2449 /* dump counters and exit */ 2450 if (dump_only) 2451 return get_and_dump_counters(); 2452 2453 /* 2454 * if any params left, it must be a command to fork 2455 */ 2456 if (argc - optind) 2457 return fork_it(argv + optind); 2458 else 2459 turbostat_loop(); 2460 2461 return 0; 2462 } 2463