2 * turbostat -- show CPU frequency and C-state residency
3 * on modern Intel turbo-capable processors.
5 * Copyright (c) 2013 Intel Corporation.
6 * Len Brown <len.brown@intel.com>
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.
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
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.
28 #include <sys/types.h>
31 #include <sys/resource.h>
42 #include <linux/capability.h>
45 char *proc_stat = "/proc/stat";
46 unsigned int interval_sec = 5;
48 unsigned int rapl_joules;
49 unsigned int summary_only;
50 unsigned int dump_only;
53 unsigned int do_nhm_cstates;
54 unsigned int do_snb_cstates;
59 unsigned int do_c8_c9_c10;
60 unsigned int do_slm_cstates;
61 unsigned int use_c1_residency_msr;
62 unsigned int has_aperf;
64 unsigned int units = 1000000; /* MHz etc */
65 unsigned int genuine_intel;
66 unsigned int has_invariant_tsc;
67 unsigned int do_nhm_platform_info;
68 unsigned int do_nhm_turbo_ratio_limit;
69 unsigned int do_ivt_turbo_ratio_limit;
70 unsigned int extra_msr_offset32;
71 unsigned int extra_msr_offset64;
72 unsigned int extra_delta_offset32;
73 unsigned int extra_delta_offset64;
76 unsigned int show_pkg;
77 unsigned int show_core;
78 unsigned int show_cpu;
79 unsigned int show_pkg_only;
80 unsigned int show_core_only;
81 char *output_buffer, *outp;
85 unsigned int tcc_activation_temp;
86 unsigned int tcc_activation_temp_override;
87 double rapl_power_units, rapl_energy_units, rapl_time_units;
88 double rapl_joule_counter_range;
89 unsigned int do_core_perf_limit_reasons;
90 unsigned int do_gfx_perf_limit_reasons;
91 unsigned int do_ring_perf_limit_reasons;
93 #define RAPL_PKG (1 << 0)
94 /* 0x610 MSR_PKG_POWER_LIMIT */
95 /* 0x611 MSR_PKG_ENERGY_STATUS */
96 #define RAPL_PKG_PERF_STATUS (1 << 1)
97 /* 0x613 MSR_PKG_PERF_STATUS */
98 #define RAPL_PKG_POWER_INFO (1 << 2)
99 /* 0x614 MSR_PKG_POWER_INFO */
101 #define RAPL_DRAM (1 << 3)
102 /* 0x618 MSR_DRAM_POWER_LIMIT */
103 /* 0x619 MSR_DRAM_ENERGY_STATUS */
104 /* 0x61c MSR_DRAM_POWER_INFO */
105 #define RAPL_DRAM_PERF_STATUS (1 << 4)
106 /* 0x61b MSR_DRAM_PERF_STATUS */
108 #define RAPL_CORES (1 << 5)
109 /* 0x638 MSR_PP0_POWER_LIMIT */
110 /* 0x639 MSR_PP0_ENERGY_STATUS */
111 #define RAPL_CORE_POLICY (1 << 6)
112 /* 0x63a MSR_PP0_POLICY */
115 #define RAPL_GFX (1 << 7)
116 /* 0x640 MSR_PP1_POWER_LIMIT */
117 /* 0x641 MSR_PP1_ENERGY_STATUS */
118 /* 0x642 MSR_PP1_POLICY */
119 #define TJMAX_DEFAULT 100
121 #define MAX(a, b) ((a) > (b) ? (a) : (b))
123 int aperf_mperf_unstable;
127 cpu_set_t *cpu_present_set, *cpu_affinity_set;
128 size_t cpu_present_setsize, cpu_affinity_setsize;
131 unsigned long long tsc;
132 unsigned long long aperf;
133 unsigned long long mperf;
134 unsigned long long c1;
135 unsigned long long extra_msr64;
136 unsigned long long extra_delta64;
137 unsigned long long extra_msr32;
138 unsigned long long extra_delta32;
139 unsigned int smi_count;
142 #define CPU_IS_FIRST_THREAD_IN_CORE 0x2
143 #define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4
144 } *thread_even, *thread_odd;
147 unsigned long long c3;
148 unsigned long long c6;
149 unsigned long long c7;
150 unsigned int core_temp_c;
151 unsigned int core_id;
152 } *core_even, *core_odd;
155 unsigned long long pc2;
156 unsigned long long pc3;
157 unsigned long long pc6;
158 unsigned long long pc7;
159 unsigned long long pc8;
160 unsigned long long pc9;
161 unsigned long long pc10;
162 unsigned int package_id;
163 unsigned int energy_pkg; /* MSR_PKG_ENERGY_STATUS */
164 unsigned int energy_dram; /* MSR_DRAM_ENERGY_STATUS */
165 unsigned int energy_cores; /* MSR_PP0_ENERGY_STATUS */
166 unsigned int energy_gfx; /* MSR_PP1_ENERGY_STATUS */
167 unsigned int rapl_pkg_perf_status; /* MSR_PKG_PERF_STATUS */
168 unsigned int rapl_dram_perf_status; /* MSR_DRAM_PERF_STATUS */
169 unsigned int pkg_temp_c;
171 } *package_even, *package_odd;
173 #define ODD_COUNTERS thread_odd, core_odd, package_odd
174 #define EVEN_COUNTERS thread_even, core_even, package_even
176 #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \
177 (thread_base + (pkg_no) * topo.num_cores_per_pkg * \
178 topo.num_threads_per_core + \
179 (core_no) * topo.num_threads_per_core + (thread_no))
180 #define GET_CORE(core_base, core_no, pkg_no) \
181 (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no))
182 #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no)
184 struct system_summary {
185 struct thread_data threads;
186 struct core_data cores;
187 struct pkg_data packages;
196 int num_cores_per_pkg;
197 int num_threads_per_core;
200 struct timeval tv_even, tv_odd, tv_delta;
202 void setup_all_buffers(void);
204 int cpu_is_not_present(int cpu)
206 return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
209 * run func(thread, core, package) in topology order
210 * skip non-present cpus
213 int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
214 struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
216 int retval, pkg_no, core_no, thread_no;
218 for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
219 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
220 for (thread_no = 0; thread_no <
221 topo.num_threads_per_core; ++thread_no) {
222 struct thread_data *t;
226 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
228 if (cpu_is_not_present(t->cpu_id))
231 c = GET_CORE(core_base, core_no, pkg_no);
232 p = GET_PKG(pkg_base, pkg_no);
234 retval = func(t, c, p);
243 int cpu_migrate(int cpu)
245 CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
246 CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
247 if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1)
253 int get_msr(int cpu, off_t offset, unsigned long long *msr)
259 sprintf(pathname, "/dev/cpu/%d/msr", cpu);
260 fd = open(pathname, O_RDONLY);
262 err(-1, "%s open failed, try chown or chmod +r /dev/cpu/*/msr, or run as root", pathname);
264 retval = pread(fd, msr, sizeof *msr, offset);
267 if (retval != sizeof *msr)
268 err(-1, "%s offset 0x%llx read failed", pathname, (unsigned long long)offset);
274 * Example Format w/ field column widths:
276 * 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
277 * 123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678
280 void print_header(void)
283 outp += sprintf(outp, " Package");
285 outp += sprintf(outp, " Core");
287 outp += sprintf(outp, " CPU");
289 outp += sprintf(outp, " Avg_MHz");
291 outp += sprintf(outp, " %%Busy");
293 outp += sprintf(outp, " Bzy_MHz");
294 outp += sprintf(outp, " TSC_MHz");
296 if (extra_delta_offset32)
297 outp += sprintf(outp, " count 0x%03X", extra_delta_offset32);
298 if (extra_delta_offset64)
299 outp += sprintf(outp, " COUNT 0x%03X", extra_delta_offset64);
300 if (extra_msr_offset32)
301 outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32);
302 if (extra_msr_offset64)
303 outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64);
309 outp += sprintf(outp, " SMI");
312 outp += sprintf(outp, " CPU%%c1");
313 if (do_nhm_cstates && !do_slm_cstates)
314 outp += sprintf(outp, " CPU%%c3");
316 outp += sprintf(outp, " CPU%%c6");
318 outp += sprintf(outp, " CPU%%c7");
321 outp += sprintf(outp, " CoreTmp");
323 outp += sprintf(outp, " PkgTmp");
326 outp += sprintf(outp, " Pkg%%pc2");
328 outp += sprintf(outp, " Pkg%%pc3");
330 outp += sprintf(outp, " Pkg%%pc6");
332 outp += sprintf(outp, " Pkg%%pc7");
334 outp += sprintf(outp, " Pkg%%pc8");
335 outp += sprintf(outp, " Pkg%%pc9");
336 outp += sprintf(outp, " Pk%%pc10");
339 if (do_rapl && !rapl_joules) {
340 if (do_rapl & RAPL_PKG)
341 outp += sprintf(outp, " PkgWatt");
342 if (do_rapl & RAPL_CORES)
343 outp += sprintf(outp, " CorWatt");
344 if (do_rapl & RAPL_GFX)
345 outp += sprintf(outp, " GFXWatt");
346 if (do_rapl & RAPL_DRAM)
347 outp += sprintf(outp, " RAMWatt");
348 if (do_rapl & RAPL_PKG_PERF_STATUS)
349 outp += sprintf(outp, " PKG_%%");
350 if (do_rapl & RAPL_DRAM_PERF_STATUS)
351 outp += sprintf(outp, " RAM_%%");
352 } else if (do_rapl && rapl_joules) {
353 if (do_rapl & RAPL_PKG)
354 outp += sprintf(outp, " Pkg_J");
355 if (do_rapl & RAPL_CORES)
356 outp += sprintf(outp, " Cor_J");
357 if (do_rapl & RAPL_GFX)
358 outp += sprintf(outp, " GFX_J");
359 if (do_rapl & RAPL_DRAM)
360 outp += sprintf(outp, " RAM_W");
361 if (do_rapl & RAPL_PKG_PERF_STATUS)
362 outp += sprintf(outp, " PKG_%%");
363 if (do_rapl & RAPL_DRAM_PERF_STATUS)
364 outp += sprintf(outp, " RAM_%%");
365 outp += sprintf(outp, " time");
369 outp += sprintf(outp, "\n");
372 int dump_counters(struct thread_data *t, struct core_data *c,
375 outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p);
378 outp += sprintf(outp, "CPU: %d flags 0x%x\n",
379 t->cpu_id, t->flags);
380 outp += sprintf(outp, "TSC: %016llX\n", t->tsc);
381 outp += sprintf(outp, "aperf: %016llX\n", t->aperf);
382 outp += sprintf(outp, "mperf: %016llX\n", t->mperf);
383 outp += sprintf(outp, "c1: %016llX\n", t->c1);
384 outp += sprintf(outp, "msr0x%x: %08llX\n",
385 extra_delta_offset32, t->extra_delta32);
386 outp += sprintf(outp, "msr0x%x: %016llX\n",
387 extra_delta_offset64, t->extra_delta64);
388 outp += sprintf(outp, "msr0x%x: %08llX\n",
389 extra_msr_offset32, t->extra_msr32);
390 outp += sprintf(outp, "msr0x%x: %016llX\n",
391 extra_msr_offset64, t->extra_msr64);
393 outp += sprintf(outp, "SMI: %08X\n", t->smi_count);
397 outp += sprintf(outp, "core: %d\n", c->core_id);
398 outp += sprintf(outp, "c3: %016llX\n", c->c3);
399 outp += sprintf(outp, "c6: %016llX\n", c->c6);
400 outp += sprintf(outp, "c7: %016llX\n", c->c7);
401 outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c);
405 outp += sprintf(outp, "package: %d\n", p->package_id);
406 outp += sprintf(outp, "pc2: %016llX\n", p->pc2);
408 outp += sprintf(outp, "pc3: %016llX\n", p->pc3);
410 outp += sprintf(outp, "pc6: %016llX\n", p->pc6);
412 outp += sprintf(outp, "pc7: %016llX\n", p->pc7);
413 outp += sprintf(outp, "pc8: %016llX\n", p->pc8);
414 outp += sprintf(outp, "pc9: %016llX\n", p->pc9);
415 outp += sprintf(outp, "pc10: %016llX\n", p->pc10);
416 outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg);
417 outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores);
418 outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx);
419 outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram);
420 outp += sprintf(outp, "Throttle PKG: %0X\n",
421 p->rapl_pkg_perf_status);
422 outp += sprintf(outp, "Throttle RAM: %0X\n",
423 p->rapl_dram_perf_status);
424 outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c);
427 outp += sprintf(outp, "\n");
433 * column formatting convention & formats
435 int format_counters(struct thread_data *t, struct core_data *c,
438 double interval_float;
441 /* if showing only 1st thread in core and this isn't one, bail out */
442 if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
445 /* if showing only 1st thread in pkg and this isn't one, bail out */
446 if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
449 interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
451 /* topo columns, print blanks on 1st (average) line */
452 if (t == &average.threads) {
454 outp += sprintf(outp, " -");
456 outp += sprintf(outp, " -");
458 outp += sprintf(outp, " -");
462 outp += sprintf(outp, "%8d", p->package_id);
464 outp += sprintf(outp, " -");
468 outp += sprintf(outp, "%8d", c->core_id);
470 outp += sprintf(outp, " -");
473 outp += sprintf(outp, "%8d", t->cpu_id);
478 outp += sprintf(outp, "%8.0f",
479 1.0 / units * t->aperf / interval_float);
484 outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc);
486 outp += sprintf(outp, "********");
491 outp += sprintf(outp, "%8.0f",
492 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);
495 outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
498 if (extra_delta_offset32)
499 outp += sprintf(outp, " %11llu", t->extra_delta32);
502 if (extra_delta_offset64)
503 outp += sprintf(outp, " %11llu", t->extra_delta64);
505 if (extra_msr_offset32)
506 outp += sprintf(outp, " 0x%08llx", t->extra_msr32);
509 if (extra_msr_offset64)
510 outp += sprintf(outp, " 0x%016llx", t->extra_msr64);
517 outp += sprintf(outp, "%8d", t->smi_count);
519 if (do_nhm_cstates) {
521 outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc);
523 outp += sprintf(outp, "********");
526 /* print per-core data only for 1st thread in core */
527 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
530 if (do_nhm_cstates && !do_slm_cstates)
531 outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc);
533 outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc);
535 outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc);
538 outp += sprintf(outp, "%8d", c->core_temp_c);
540 /* print per-package data only for 1st core in package */
541 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
545 outp += sprintf(outp, "%8d", p->pkg_temp_c);
548 outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc);
550 outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc);
552 outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc);
554 outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc);
556 outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc);
557 outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc);
558 outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc);
562 * If measurement interval exceeds minimum RAPL Joule Counter range,
563 * indicate that results are suspect by printing "**" in fraction place.
565 if (interval_float < rapl_joule_counter_range)
570 if (do_rapl && !rapl_joules) {
571 if (do_rapl & RAPL_PKG)
572 outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float);
573 if (do_rapl & RAPL_CORES)
574 outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float);
575 if (do_rapl & RAPL_GFX)
576 outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float);
577 if (do_rapl & RAPL_DRAM)
578 outp += sprintf(outp, fmt8, p->energy_dram * rapl_energy_units / interval_float);
579 if (do_rapl & RAPL_PKG_PERF_STATUS)
580 outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
581 if (do_rapl & RAPL_DRAM_PERF_STATUS)
582 outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
583 } else if (do_rapl && rapl_joules) {
584 if (do_rapl & RAPL_PKG)
585 outp += sprintf(outp, fmt8,
586 p->energy_pkg * rapl_energy_units);
587 if (do_rapl & RAPL_CORES)
588 outp += sprintf(outp, fmt8,
589 p->energy_cores * rapl_energy_units);
590 if (do_rapl & RAPL_GFX)
591 outp += sprintf(outp, fmt8,
592 p->energy_gfx * rapl_energy_units);
593 if (do_rapl & RAPL_DRAM)
594 outp += sprintf(outp, fmt8,
595 p->energy_dram * rapl_energy_units);
596 if (do_rapl & RAPL_PKG_PERF_STATUS)
597 outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
598 if (do_rapl & RAPL_DRAM_PERF_STATUS)
599 outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
601 outp += sprintf(outp, fmt8, interval_float);
604 outp += sprintf(outp, "\n");
611 fputs(output_buffer, stdout);
613 outp = output_buffer;
617 fputs(output_buffer, stderr);
618 outp = output_buffer;
620 void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
624 if (!printed || !summary_only)
627 if (topo.num_cpus > 1)
628 format_counters(&average.threads, &average.cores,
636 for_all_cpus(format_counters, t, c, p);
639 #define DELTA_WRAP32(new, old) \
643 old = 0x100000000 + new - old; \
647 delta_package(struct pkg_data *new, struct pkg_data *old)
649 old->pc2 = new->pc2 - old->pc2;
651 old->pc3 = new->pc3 - old->pc3;
653 old->pc6 = new->pc6 - old->pc6;
655 old->pc7 = new->pc7 - old->pc7;
656 old->pc8 = new->pc8 - old->pc8;
657 old->pc9 = new->pc9 - old->pc9;
658 old->pc10 = new->pc10 - old->pc10;
659 old->pkg_temp_c = new->pkg_temp_c;
661 DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
662 DELTA_WRAP32(new->energy_cores, old->energy_cores);
663 DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
664 DELTA_WRAP32(new->energy_dram, old->energy_dram);
665 DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
666 DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
670 delta_core(struct core_data *new, struct core_data *old)
672 old->c3 = new->c3 - old->c3;
673 old->c6 = new->c6 - old->c6;
674 old->c7 = new->c7 - old->c7;
675 old->core_temp_c = new->core_temp_c;
682 delta_thread(struct thread_data *new, struct thread_data *old,
683 struct core_data *core_delta)
685 old->tsc = new->tsc - old->tsc;
687 /* check for TSC < 1 Mcycles over interval */
688 if (old->tsc < (1000 * 1000))
689 errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n"
690 "You can disable all c-states by booting with \"idle=poll\"\n"
691 "or just the deep ones with \"processor.max_cstate=1\"");
693 old->c1 = new->c1 - old->c1;
696 if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
697 old->aperf = new->aperf - old->aperf;
698 old->mperf = new->mperf - old->mperf;
701 if (!aperf_mperf_unstable) {
702 fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname);
703 fprintf(stderr, "* Frequency results do not cover entire interval *\n");
704 fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n");
706 aperf_mperf_unstable = 1;
709 * mperf delta is likely a huge "positive" number
710 * can not use it for calculating c0 time
718 if (use_c1_residency_msr) {
720 * Some models have a dedicated C1 residency MSR,
721 * which should be more accurate than the derivation below.
725 * As counter collection is not atomic,
726 * it is possible for mperf's non-halted cycles + idle states
727 * to exceed TSC's all cycles: show c1 = 0% in that case.
729 if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
732 /* normal case, derive c1 */
733 old->c1 = old->tsc - old->mperf - core_delta->c3
734 - core_delta->c6 - core_delta->c7;
738 if (old->mperf == 0) {
739 if (debug > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id);
740 old->mperf = 1; /* divide by 0 protection */
743 old->extra_delta32 = new->extra_delta32 - old->extra_delta32;
744 old->extra_delta32 &= 0xFFFFFFFF;
746 old->extra_delta64 = new->extra_delta64 - old->extra_delta64;
749 * Extra MSR is just a snapshot, simply copy latest w/o subtracting
751 old->extra_msr32 = new->extra_msr32;
752 old->extra_msr64 = new->extra_msr64;
755 old->smi_count = new->smi_count - old->smi_count;
758 int delta_cpu(struct thread_data *t, struct core_data *c,
759 struct pkg_data *p, struct thread_data *t2,
760 struct core_data *c2, struct pkg_data *p2)
762 /* calculate core delta only for 1st thread in core */
763 if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
766 /* always calculate thread delta */
767 delta_thread(t, t2, c2); /* c2 is core delta */
769 /* calculate package delta only for 1st core in package */
770 if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
771 delta_package(p, p2);
776 void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
784 t->extra_delta32 = 0;
785 t->extra_delta64 = 0;
787 /* tells format_counters to dump all fields from this set */
788 t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;
810 p->rapl_pkg_perf_status = 0;
811 p->rapl_dram_perf_status = 0;
814 int sum_counters(struct thread_data *t, struct core_data *c,
817 average.threads.tsc += t->tsc;
818 average.threads.aperf += t->aperf;
819 average.threads.mperf += t->mperf;
820 average.threads.c1 += t->c1;
822 average.threads.extra_delta32 += t->extra_delta32;
823 average.threads.extra_delta64 += t->extra_delta64;
825 /* sum per-core values only for 1st thread in core */
826 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
829 average.cores.c3 += c->c3;
830 average.cores.c6 += c->c6;
831 average.cores.c7 += c->c7;
833 average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c);
835 /* sum per-pkg values only for 1st core in pkg */
836 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
839 average.packages.pc2 += p->pc2;
841 average.packages.pc3 += p->pc3;
843 average.packages.pc6 += p->pc6;
845 average.packages.pc7 += p->pc7;
846 average.packages.pc8 += p->pc8;
847 average.packages.pc9 += p->pc9;
848 average.packages.pc10 += p->pc10;
850 average.packages.energy_pkg += p->energy_pkg;
851 average.packages.energy_dram += p->energy_dram;
852 average.packages.energy_cores += p->energy_cores;
853 average.packages.energy_gfx += p->energy_gfx;
855 average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c);
857 average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status;
858 average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status;
862 * sum the counters for all cpus in the system
863 * compute the weighted average
865 void compute_average(struct thread_data *t, struct core_data *c,
868 clear_counters(&average.threads, &average.cores, &average.packages);
870 for_all_cpus(sum_counters, t, c, p);
872 average.threads.tsc /= topo.num_cpus;
873 average.threads.aperf /= topo.num_cpus;
874 average.threads.mperf /= topo.num_cpus;
875 average.threads.c1 /= topo.num_cpus;
877 average.threads.extra_delta32 /= topo.num_cpus;
878 average.threads.extra_delta32 &= 0xFFFFFFFF;
880 average.threads.extra_delta64 /= topo.num_cpus;
882 average.cores.c3 /= topo.num_cores;
883 average.cores.c6 /= topo.num_cores;
884 average.cores.c7 /= topo.num_cores;
886 average.packages.pc2 /= topo.num_packages;
888 average.packages.pc3 /= topo.num_packages;
890 average.packages.pc6 /= topo.num_packages;
892 average.packages.pc7 /= topo.num_packages;
894 average.packages.pc8 /= topo.num_packages;
895 average.packages.pc9 /= topo.num_packages;
896 average.packages.pc10 /= topo.num_packages;
899 static unsigned long long rdtsc(void)
901 unsigned int low, high;
903 asm volatile("rdtsc" : "=a" (low), "=d" (high));
905 return low | ((unsigned long long)high) << 32;
912 * acquire and record local counters for that cpu
914 int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
917 unsigned long long msr;
919 if (cpu_migrate(cpu)) {
920 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
924 t->tsc = rdtsc(); /* we are running on local CPU of interest */
927 if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
929 if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf))
934 if (get_msr(cpu, MSR_SMI_COUNT, &msr))
936 t->smi_count = msr & 0xFFFFFFFF;
938 if (extra_delta_offset32) {
939 if (get_msr(cpu, extra_delta_offset32, &msr))
941 t->extra_delta32 = msr & 0xFFFFFFFF;
944 if (extra_delta_offset64)
945 if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64))
948 if (extra_msr_offset32) {
949 if (get_msr(cpu, extra_msr_offset32, &msr))
951 t->extra_msr32 = msr & 0xFFFFFFFF;
954 if (extra_msr_offset64)
955 if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
958 if (use_c1_residency_msr) {
959 if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
963 /* collect core counters only for 1st thread in core */
964 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
967 if (do_nhm_cstates && !do_slm_cstates) {
968 if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
972 if (do_nhm_cstates) {
973 if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
978 if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7))
982 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
984 c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
988 /* collect package counters only for 1st core in package */
989 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
993 if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
996 if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
999 if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2))
1002 if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7))
1005 if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8))
1007 if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9))
1009 if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10))
1012 if (do_rapl & RAPL_PKG) {
1013 if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr))
1015 p->energy_pkg = msr & 0xFFFFFFFF;
1017 if (do_rapl & RAPL_CORES) {
1018 if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr))
1020 p->energy_cores = msr & 0xFFFFFFFF;
1022 if (do_rapl & RAPL_DRAM) {
1023 if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr))
1025 p->energy_dram = msr & 0xFFFFFFFF;
1027 if (do_rapl & RAPL_GFX) {
1028 if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr))
1030 p->energy_gfx = msr & 0xFFFFFFFF;
1032 if (do_rapl & RAPL_PKG_PERF_STATUS) {
1033 if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr))
1035 p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
1037 if (do_rapl & RAPL_DRAM_PERF_STATUS) {
1038 if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr))
1040 p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
1043 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
1045 p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
1051 * MSR_PKG_CST_CONFIG_CONTROL decoding for pkg_cstate_limit:
1052 * If you change the values, note they are used both in comparisons
1053 * (>= PCL__7) and to index pkg_cstate_limit_strings[].
1056 #define PCLUKN 0 /* Unknown */
1057 #define PCLRSV 1 /* Reserved */
1058 #define PCL__0 2 /* PC0 */
1059 #define PCL__1 3 /* PC1 */
1060 #define PCL__2 4 /* PC2 */
1061 #define PCL__3 5 /* PC3 */
1062 #define PCL__4 6 /* PC4 */
1063 #define PCL__6 7 /* PC6 */
1064 #define PCL_6N 8 /* PC6 No Retention */
1065 #define PCL_6R 9 /* PC6 Retention */
1066 #define PCL__7 10 /* PC7 */
1067 #define PCL_7S 11 /* PC7 Shrink */
1068 #define PCLUNL 12 /* Unlimited */
1070 int pkg_cstate_limit = PCLUKN;
1071 char *pkg_cstate_limit_strings[] = { "reserved", "unknown", "pc0", "pc1", "pc2",
1072 "pc3", "pc4", "pc6", "pc6n", "pc6r", "pc7", "pc7s", "unlimited"};
1074 int nhm_pkg_cstate_limits[8] = {PCL__0, PCL__1, PCL__3, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLUNL};
1075 int snb_pkg_cstate_limits[8] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCL__7, PCL_7S, PCLRSV, PCLUNL};
1076 int hsw_pkg_cstate_limits[8] = {PCL__0, PCL__2, PCL__3, PCL__6, PCL__7, PCL_7S, PCLRSV, PCLUNL};
1077 int slv_pkg_cstate_limits[8] = {PCL__0, PCL__1, PCLRSV, PCLRSV, PCL__4, PCLRSV, PCL__6, PCL__7};
1078 int amt_pkg_cstate_limits[8] = {PCL__0, PCL__1, PCL__2, PCLRSV, PCLRSV, PCLRSV, PCL__6, PCL__7};
1079 int phi_pkg_cstate_limits[8] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV, PCLRSV, PCLUNL};
1081 void dump_system_config_info(void)
1083 unsigned long long msr;
1086 if (!do_nhm_platform_info)
1089 get_msr(0, MSR_NHM_PLATFORM_INFO, &msr);
1091 fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr);
1093 ratio = (msr >> 40) & 0xFF;
1094 fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency frequency\n",
1095 ratio, bclk, ratio * bclk);
1097 ratio = (msr >> 8) & 0xFF;
1098 fprintf(stderr, "%d * %.0f = %.0f MHz base frequency\n",
1099 ratio, bclk, ratio * bclk);
1101 get_msr(0, MSR_IA32_POWER_CTL, &msr);
1102 fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
1103 msr, msr & 0x2 ? "EN" : "DIS");
1105 if (!do_ivt_turbo_ratio_limit)
1106 goto print_nhm_turbo_ratio_limits;
1108 get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr);
1110 fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr);
1112 ratio = (msr >> 56) & 0xFF;
1114 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n",
1115 ratio, bclk, ratio * bclk);
1117 ratio = (msr >> 48) & 0xFF;
1119 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n",
1120 ratio, bclk, ratio * bclk);
1122 ratio = (msr >> 40) & 0xFF;
1124 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n",
1125 ratio, bclk, ratio * bclk);
1127 ratio = (msr >> 32) & 0xFF;
1129 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n",
1130 ratio, bclk, ratio * bclk);
1132 ratio = (msr >> 24) & 0xFF;
1134 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n",
1135 ratio, bclk, ratio * bclk);
1137 ratio = (msr >> 16) & 0xFF;
1139 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n",
1140 ratio, bclk, ratio * bclk);
1142 ratio = (msr >> 8) & 0xFF;
1144 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n",
1145 ratio, bclk, ratio * bclk);
1147 ratio = (msr >> 0) & 0xFF;
1149 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n",
1150 ratio, bclk, ratio * bclk);
1152 print_nhm_turbo_ratio_limits:
1153 get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1155 #define SNB_C1_AUTO_UNDEMOTE (1UL << 27)
1156 #define SNB_C3_AUTO_UNDEMOTE (1UL << 28)
1158 fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr);
1160 fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n",
1161 (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
1162 (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
1163 (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
1164 (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
1165 (msr & (1 << 15)) ? "" : "UN",
1166 (unsigned int)msr & 7,
1167 pkg_cstate_limit_strings[pkg_cstate_limit]);
1169 if (!do_nhm_turbo_ratio_limit)
1172 get_msr(0, MSR_NHM_TURBO_RATIO_LIMIT, &msr);
1174 fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr);
1176 ratio = (msr >> 56) & 0xFF;
1178 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n",
1179 ratio, bclk, ratio * bclk);
1181 ratio = (msr >> 48) & 0xFF;
1183 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n",
1184 ratio, bclk, ratio * bclk);
1186 ratio = (msr >> 40) & 0xFF;
1188 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n",
1189 ratio, bclk, ratio * bclk);
1191 ratio = (msr >> 32) & 0xFF;
1193 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n",
1194 ratio, bclk, ratio * bclk);
1196 ratio = (msr >> 24) & 0xFF;
1198 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n",
1199 ratio, bclk, ratio * bclk);
1201 ratio = (msr >> 16) & 0xFF;
1203 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n",
1204 ratio, bclk, ratio * bclk);
1206 ratio = (msr >> 8) & 0xFF;
1208 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n",
1209 ratio, bclk, ratio * bclk);
1211 ratio = (msr >> 0) & 0xFF;
1213 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n",
1214 ratio, bclk, ratio * bclk);
1218 void free_all_buffers(void)
1220 CPU_FREE(cpu_present_set);
1221 cpu_present_set = NULL;
1222 cpu_present_set = 0;
1224 CPU_FREE(cpu_affinity_set);
1225 cpu_affinity_set = NULL;
1226 cpu_affinity_setsize = 0;
1234 package_even = NULL;
1244 free(output_buffer);
1245 output_buffer = NULL;
1250 * Open a file, and exit on failure
1252 FILE *fopen_or_die(const char *path, const char *mode)
1254 FILE *filep = fopen(path, "r");
1256 err(1, "%s: open failed", path);
1261 * Parse a file containing a single int.
1263 int parse_int_file(const char *fmt, ...)
1266 char path[PATH_MAX];
1270 va_start(args, fmt);
1271 vsnprintf(path, sizeof(path), fmt, args);
1273 filep = fopen_or_die(path, "r");
1274 if (fscanf(filep, "%d", &value) != 1)
1275 err(1, "%s: failed to parse number from file", path);
1281 * cpu_is_first_sibling_in_core(cpu)
1282 * return 1 if given CPU is 1st HT sibling in the core
1284 int cpu_is_first_sibling_in_core(int cpu)
1286 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1290 * cpu_is_first_core_in_package(cpu)
1291 * return 1 if given CPU is 1st core in package
1293 int cpu_is_first_core_in_package(int cpu)
1295 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
1298 int get_physical_package_id(int cpu)
1300 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
1303 int get_core_id(int cpu)
1305 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
1308 int get_num_ht_siblings(int cpu)
1316 sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1317 filep = fopen_or_die(path, "r");
1320 * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4)
1321 * otherwinse 1 sibling (self).
1323 matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2);
1334 * run func(thread, core, package) in topology order
1335 * skip non-present cpus
1338 int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
1339 struct pkg_data *, struct thread_data *, struct core_data *,
1340 struct pkg_data *), struct thread_data *thread_base,
1341 struct core_data *core_base, struct pkg_data *pkg_base,
1342 struct thread_data *thread_base2, struct core_data *core_base2,
1343 struct pkg_data *pkg_base2)
1345 int retval, pkg_no, core_no, thread_no;
1347 for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
1348 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
1349 for (thread_no = 0; thread_no <
1350 topo.num_threads_per_core; ++thread_no) {
1351 struct thread_data *t, *t2;
1352 struct core_data *c, *c2;
1353 struct pkg_data *p, *p2;
1355 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
1357 if (cpu_is_not_present(t->cpu_id))
1360 t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
1362 c = GET_CORE(core_base, core_no, pkg_no);
1363 c2 = GET_CORE(core_base2, core_no, pkg_no);
1365 p = GET_PKG(pkg_base, pkg_no);
1366 p2 = GET_PKG(pkg_base2, pkg_no);
1368 retval = func(t, c, p, t2, c2, p2);
1378 * run func(cpu) on every cpu in /proc/stat
1379 * return max_cpu number
1381 int for_all_proc_cpus(int (func)(int))
1387 fp = fopen_or_die(proc_stat, "r");
1389 retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
1391 err(1, "%s: failed to parse format", proc_stat);
1394 retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
1398 retval = func(cpu_num);
1408 void re_initialize(void)
1411 setup_all_buffers();
1412 printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus);
1418 * remember the last one seen, it will be the max
1420 int count_cpus(int cpu)
1422 if (topo.max_cpu_num < cpu)
1423 topo.max_cpu_num = cpu;
1428 int mark_cpu_present(int cpu)
1430 CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
1434 void turbostat_loop()
1442 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1445 } else if (retval == -1) {
1446 if (restarted > 1) {
1453 gettimeofday(&tv_even, (struct timezone *)NULL);
1456 if (for_all_proc_cpus(cpu_is_not_present)) {
1460 sleep(interval_sec);
1461 retval = for_all_cpus(get_counters, ODD_COUNTERS);
1464 } else if (retval == -1) {
1468 gettimeofday(&tv_odd, (struct timezone *)NULL);
1469 timersub(&tv_odd, &tv_even, &tv_delta);
1470 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
1471 compute_average(EVEN_COUNTERS);
1472 format_all_counters(EVEN_COUNTERS);
1474 sleep(interval_sec);
1475 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1478 } else if (retval == -1) {
1482 gettimeofday(&tv_even, (struct timezone *)NULL);
1483 timersub(&tv_even, &tv_odd, &tv_delta);
1484 for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS);
1485 compute_average(ODD_COUNTERS);
1486 format_all_counters(ODD_COUNTERS);
1491 void check_dev_msr()
1495 if (stat("/dev/cpu/0/msr", &sb))
1496 err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" ");
1499 void check_permissions()
1501 struct __user_cap_header_struct cap_header_data;
1502 cap_user_header_t cap_header = &cap_header_data;
1503 struct __user_cap_data_struct cap_data_data;
1504 cap_user_data_t cap_data = &cap_data_data;
1505 extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
1508 /* check for CAP_SYS_RAWIO */
1509 cap_header->pid = getpid();
1510 cap_header->version = _LINUX_CAPABILITY_VERSION;
1511 if (capget(cap_header, cap_data) < 0)
1512 err(-6, "capget(2) failed");
1514 if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) {
1516 warnx("capget(CAP_SYS_RAWIO) failed,"
1517 " try \"# setcap cap_sys_rawio=ep %s\"", progname);
1520 /* test file permissions */
1521 if (euidaccess("/dev/cpu/0/msr", R_OK)) {
1523 warn("/dev/cpu/0/msr open failed, try chown or chmod +r /dev/cpu/*/msr");
1526 /* if all else fails, thell them to be root */
1529 warnx("... or simply run as root");
1536 * NHM adds support for additional MSRs:
1538 * MSR_SMI_COUNT 0x00000034
1540 * MSR_NHM_PLATFORM_INFO 0x000000ce
1541 * MSR_NHM_SNB_PKG_CST_CFG_CTL 0x000000e2
1543 * MSR_PKG_C3_RESIDENCY 0x000003f8
1544 * MSR_PKG_C6_RESIDENCY 0x000003f9
1545 * MSR_CORE_C3_RESIDENCY 0x000003fc
1546 * MSR_CORE_C6_RESIDENCY 0x000003fd
1549 * sets global pkg_cstate_limit to decode MSR_NHM_SNB_PKG_CST_CFG_CTL
1551 int probe_nhm_msrs(unsigned int family, unsigned int model)
1553 unsigned long long msr;
1554 int *pkg_cstate_limits;
1563 case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
1564 case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
1565 case 0x1F: /* Core i7 and i5 Processor - Nehalem */
1566 case 0x25: /* Westmere Client - Clarkdale, Arrandale */
1567 case 0x2C: /* Westmere EP - Gulftown */
1568 case 0x2E: /* Nehalem-EX Xeon - Beckton */
1569 case 0x2F: /* Westmere-EX Xeon - Eagleton */
1570 pkg_cstate_limits = nhm_pkg_cstate_limits;
1572 case 0x2A: /* SNB */
1573 case 0x2D: /* SNB Xeon */
1574 case 0x3A: /* IVB */
1575 case 0x3E: /* IVB Xeon */
1576 pkg_cstate_limits = snb_pkg_cstate_limits;
1578 case 0x3C: /* HSW */
1579 case 0x3F: /* HSX */
1580 case 0x45: /* HSW */
1581 case 0x46: /* HSW */
1582 case 0x3D: /* BDW */
1583 case 0x47: /* BDW */
1584 case 0x4F: /* BDX */
1585 case 0x56: /* BDX-DE */
1586 pkg_cstate_limits = hsw_pkg_cstate_limits;
1588 case 0x37: /* BYT */
1589 case 0x4D: /* AVN */
1590 pkg_cstate_limits = slv_pkg_cstate_limits;
1592 case 0x4C: /* AMT */
1593 pkg_cstate_limits = amt_pkg_cstate_limits;
1595 case 0x57: /* PHI */
1596 pkg_cstate_limits = phi_pkg_cstate_limits;
1601 get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1603 pkg_cstate_limit = pkg_cstate_limits[msr & 0x7];
1607 int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
1610 /* Nehalem compatible, but do not include turbo-ratio limit support */
1611 case 0x2E: /* Nehalem-EX Xeon - Beckton */
1612 case 0x2F: /* Westmere-EX Xeon - Eagleton */
1618 int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
1627 case 0x3E: /* IVB Xeon */
1636 * Decode the ENERGY_PERF_BIAS MSR
1638 int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1640 unsigned long long msr;
1649 /* EPB is per-package */
1650 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1653 if (cpu_migrate(cpu)) {
1654 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1658 if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
1661 switch (msr & 0x7) {
1662 case ENERGY_PERF_BIAS_PERFORMANCE:
1663 epb_string = "performance";
1665 case ENERGY_PERF_BIAS_NORMAL:
1666 epb_string = "balanced";
1668 case ENERGY_PERF_BIAS_POWERSAVE:
1669 epb_string = "powersave";
1672 epb_string = "custom";
1675 fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string);
1681 * print_perf_limit()
1683 int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1685 unsigned long long msr;
1691 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1694 if (cpu_migrate(cpu)) {
1695 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1699 if (do_core_perf_limit_reasons) {
1700 get_msr(cpu, MSR_CORE_PERF_LIMIT_REASONS, &msr);
1701 fprintf(stderr, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
1702 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)",
1703 (msr & 1 << 15) ? "bit15, " : "",
1704 (msr & 1 << 14) ? "bit14, " : "",
1705 (msr & 1 << 13) ? "Transitions, " : "",
1706 (msr & 1 << 12) ? "MultiCoreTurbo, " : "",
1707 (msr & 1 << 11) ? "PkgPwrL2, " : "",
1708 (msr & 1 << 10) ? "PkgPwrL1, " : "",
1709 (msr & 1 << 9) ? "CorePwr, " : "",
1710 (msr & 1 << 8) ? "Amps, " : "",
1711 (msr & 1 << 6) ? "VR-Therm, " : "",
1712 (msr & 1 << 5) ? "Auto-HWP, " : "",
1713 (msr & 1 << 4) ? "Graphics, " : "",
1714 (msr & 1 << 2) ? "bit2, " : "",
1715 (msr & 1 << 1) ? "ThermStatus, " : "",
1716 (msr & 1 << 0) ? "PROCHOT, " : "");
1717 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n",
1718 (msr & 1 << 31) ? "bit31, " : "",
1719 (msr & 1 << 30) ? "bit30, " : "",
1720 (msr & 1 << 29) ? "Transitions, " : "",
1721 (msr & 1 << 28) ? "MultiCoreTurbo, " : "",
1722 (msr & 1 << 27) ? "PkgPwrL2, " : "",
1723 (msr & 1 << 26) ? "PkgPwrL1, " : "",
1724 (msr & 1 << 25) ? "CorePwr, " : "",
1725 (msr & 1 << 24) ? "Amps, " : "",
1726 (msr & 1 << 22) ? "VR-Therm, " : "",
1727 (msr & 1 << 21) ? "Auto-HWP, " : "",
1728 (msr & 1 << 20) ? "Graphics, " : "",
1729 (msr & 1 << 18) ? "bit18, " : "",
1730 (msr & 1 << 17) ? "ThermStatus, " : "",
1731 (msr & 1 << 16) ? "PROCHOT, " : "");
1734 if (do_gfx_perf_limit_reasons) {
1735 get_msr(cpu, MSR_GFX_PERF_LIMIT_REASONS, &msr);
1736 fprintf(stderr, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
1737 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s)",
1738 (msr & 1 << 0) ? "PROCHOT, " : "",
1739 (msr & 1 << 1) ? "ThermStatus, " : "",
1740 (msr & 1 << 4) ? "Graphics, " : "",
1741 (msr & 1 << 6) ? "VR-Therm, " : "",
1742 (msr & 1 << 8) ? "Amps, " : "",
1743 (msr & 1 << 9) ? "GFXPwr, " : "",
1744 (msr & 1 << 10) ? "PkgPwrL1, " : "",
1745 (msr & 1 << 11) ? "PkgPwrL2, " : "");
1746 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s)\n",
1747 (msr & 1 << 16) ? "PROCHOT, " : "",
1748 (msr & 1 << 17) ? "ThermStatus, " : "",
1749 (msr & 1 << 20) ? "Graphics, " : "",
1750 (msr & 1 << 22) ? "VR-Therm, " : "",
1751 (msr & 1 << 24) ? "Amps, " : "",
1752 (msr & 1 << 25) ? "GFXPwr, " : "",
1753 (msr & 1 << 26) ? "PkgPwrL1, " : "",
1754 (msr & 1 << 27) ? "PkgPwrL2, " : "");
1756 if (do_ring_perf_limit_reasons) {
1757 get_msr(cpu, MSR_RING_PERF_LIMIT_REASONS, &msr);
1758 fprintf(stderr, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
1759 fprintf(stderr, " (Active: %s%s%s%s%s%s)",
1760 (msr & 1 << 0) ? "PROCHOT, " : "",
1761 (msr & 1 << 1) ? "ThermStatus, " : "",
1762 (msr & 1 << 6) ? "VR-Therm, " : "",
1763 (msr & 1 << 8) ? "Amps, " : "",
1764 (msr & 1 << 10) ? "PkgPwrL1, " : "",
1765 (msr & 1 << 11) ? "PkgPwrL2, " : "");
1766 fprintf(stderr, " (Logged: %s%s%s%s%s%s)\n",
1767 (msr & 1 << 16) ? "PROCHOT, " : "",
1768 (msr & 1 << 17) ? "ThermStatus, " : "",
1769 (msr & 1 << 22) ? "VR-Therm, " : "",
1770 (msr & 1 << 24) ? "Amps, " : "",
1771 (msr & 1 << 26) ? "PkgPwrL1, " : "",
1772 (msr & 1 << 27) ? "PkgPwrL2, " : "");
1777 #define RAPL_POWER_GRANULARITY 0x7FFF /* 15 bit power granularity */
1778 #define RAPL_TIME_GRANULARITY 0x3F /* 6 bit time granularity */
1780 double get_tdp(model)
1782 unsigned long long msr;
1784 if (do_rapl & RAPL_PKG_POWER_INFO)
1785 if (!get_msr(0, MSR_PKG_POWER_INFO, &msr))
1786 return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
1801 * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
1803 void rapl_probe(unsigned int family, unsigned int model)
1805 unsigned long long msr;
1806 unsigned int time_unit;
1818 case 0x3C: /* HSW */
1819 case 0x45: /* HSW */
1820 case 0x46: /* HSW */
1821 case 0x3D: /* BDW */
1822 case 0x47: /* BDW */
1823 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
1825 case 0x3F: /* HSX */
1826 case 0x4F: /* BDX */
1827 case 0x56: /* BDX-DE */
1828 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
1832 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO;
1834 case 0x37: /* BYT */
1835 case 0x4D: /* AVN */
1836 do_rapl = RAPL_PKG | RAPL_CORES ;
1842 /* units on package 0, verify later other packages match */
1843 if (get_msr(0, MSR_RAPL_POWER_UNIT, &msr))
1846 rapl_power_units = 1.0 / (1 << (msr & 0xF));
1848 rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
1850 rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
1852 time_unit = msr >> 16 & 0xF;
1856 rapl_time_units = 1.0 / (1 << (time_unit));
1858 tdp = get_tdp(model);
1860 rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
1862 fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
1867 void perf_limit_reasons_probe(family, model)
1876 case 0x3C: /* HSW */
1877 case 0x45: /* HSW */
1878 case 0x46: /* HSW */
1879 do_gfx_perf_limit_reasons = 1;
1880 case 0x3F: /* HSX */
1881 do_core_perf_limit_reasons = 1;
1882 do_ring_perf_limit_reasons = 1;
1888 int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1890 unsigned long long msr;
1894 if (!(do_dts || do_ptm))
1899 /* DTS is per-core, no need to print for each thread */
1900 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
1903 if (cpu_migrate(cpu)) {
1904 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1908 if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
1909 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
1912 dts = (msr >> 16) & 0x7F;
1913 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n",
1914 cpu, msr, tcc_activation_temp - dts);
1917 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr))
1920 dts = (msr >> 16) & 0x7F;
1921 dts2 = (msr >> 8) & 0x7F;
1922 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
1923 cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
1929 unsigned int resolution;
1931 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
1934 dts = (msr >> 16) & 0x7F;
1935 resolution = (msr >> 27) & 0xF;
1936 fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n",
1937 cpu, msr, tcc_activation_temp - dts, resolution);
1940 if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr))
1943 dts = (msr >> 16) & 0x7F;
1944 dts2 = (msr >> 8) & 0x7F;
1945 fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
1946 cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
1953 void print_power_limit_msr(int cpu, unsigned long long msr, char *label)
1955 fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n",
1957 ((msr >> 15) & 1) ? "EN" : "DIS",
1958 ((msr >> 0) & 0x7FFF) * rapl_power_units,
1959 (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units,
1960 (((msr >> 16) & 1) ? "EN" : "DIS"));
1965 int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1967 unsigned long long msr;
1973 /* RAPL counters are per package, so print only for 1st thread/package */
1974 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1978 if (cpu_migrate(cpu)) {
1979 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1983 if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
1987 fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
1988 "(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
1989 rapl_power_units, rapl_energy_units, rapl_time_units);
1991 if (do_rapl & RAPL_PKG_POWER_INFO) {
1993 if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
1997 fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
1999 ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2000 ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2001 ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2002 ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2005 if (do_rapl & RAPL_PKG) {
2007 if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
2010 fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n",
2011 cpu, msr, (msr >> 63) & 1 ? "": "UN");
2013 print_power_limit_msr(cpu, msr, "PKG Limit #1");
2014 fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n",
2016 ((msr >> 47) & 1) ? "EN" : "DIS",
2017 ((msr >> 32) & 0x7FFF) * rapl_power_units,
2018 (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units,
2019 ((msr >> 48) & 1) ? "EN" : "DIS");
2022 if (do_rapl & RAPL_DRAM) {
2023 if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr))
2027 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2029 ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2030 ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2031 ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2032 ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2035 if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr))
2037 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n",
2038 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2040 print_power_limit_msr(cpu, msr, "DRAM Limit");
2042 if (do_rapl & RAPL_CORE_POLICY) {
2044 if (get_msr(cpu, MSR_PP0_POLICY, &msr))
2047 fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
2050 if (do_rapl & RAPL_CORES) {
2053 if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
2055 fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n",
2056 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2057 print_power_limit_msr(cpu, msr, "Cores Limit");
2060 if (do_rapl & RAPL_GFX) {
2062 if (get_msr(cpu, MSR_PP1_POLICY, &msr))
2065 fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF);
2067 if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr))
2069 fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n",
2070 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2071 print_power_limit_msr(cpu, msr, "GFX Limit");
2078 * SNB adds support for additional MSRs:
2080 * MSR_PKG_C7_RESIDENCY 0x000003fa
2081 * MSR_CORE_C7_RESIDENCY 0x000003fe
2082 * MSR_PKG_C2_RESIDENCY 0x0000060d
2085 int has_snb_msrs(unsigned int family, unsigned int model)
2093 case 0x3A: /* IVB */
2094 case 0x3E: /* IVB Xeon */
2095 case 0x3C: /* HSW */
2096 case 0x3F: /* HSW */
2097 case 0x45: /* HSW */
2098 case 0x46: /* HSW */
2099 case 0x3D: /* BDW */
2100 case 0x47: /* BDW */
2101 case 0x4F: /* BDX */
2102 case 0x56: /* BDX-DE */
2109 * HSW adds support for additional MSRs:
2111 * MSR_PKG_C8_RESIDENCY 0x00000630
2112 * MSR_PKG_C9_RESIDENCY 0x00000631
2113 * MSR_PKG_C10_RESIDENCY 0x00000632
2115 int has_hsw_msrs(unsigned int family, unsigned int model)
2121 case 0x45: /* HSW */
2122 case 0x3D: /* BDW */
2129 int is_slm(unsigned int family, unsigned int model)
2134 case 0x37: /* BYT */
2135 case 0x4D: /* AVN */
2141 #define SLM_BCLK_FREQS 5
2142 double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
2144 double slm_bclk(void)
2146 unsigned long long msr = 3;
2150 if (get_msr(0, MSR_FSB_FREQ, &msr))
2151 fprintf(stderr, "SLM BCLK: unknown\n");
2154 if (i >= SLM_BCLK_FREQS) {
2155 fprintf(stderr, "SLM BCLK[%d] invalid\n", i);
2158 freq = slm_freq_table[i];
2160 fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq);
2165 double discover_bclk(unsigned int family, unsigned int model)
2167 if (has_snb_msrs(family, model))
2169 else if (is_slm(family, model))
2176 * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where
2177 * the Thermal Control Circuit (TCC) activates.
2178 * This is usually equal to tjMax.
2180 * Older processors do not have this MSR, so there we guess,
2181 * but also allow cmdline over-ride with -T.
2183 * Several MSR temperature values are in units of degrees-C
2184 * below this value, including the Digital Thermal Sensor (DTS),
2185 * Package Thermal Management Sensor (PTM), and thermal event thresholds.
2187 int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2189 unsigned long long msr;
2190 unsigned int target_c_local;
2193 /* tcc_activation_temp is used only for dts or ptm */
2194 if (!(do_dts || do_ptm))
2197 /* this is a per-package concept */
2198 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2202 if (cpu_migrate(cpu)) {
2203 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2207 if (tcc_activation_temp_override != 0) {
2208 tcc_activation_temp = tcc_activation_temp_override;
2209 fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n",
2210 cpu, tcc_activation_temp);
2214 /* Temperature Target MSR is Nehalem and newer only */
2215 if (!do_nhm_platform_info)
2218 if (get_msr(0, MSR_IA32_TEMPERATURE_TARGET, &msr))
2221 target_c_local = (msr >> 16) & 0xFF;
2224 fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
2225 cpu, msr, target_c_local);
2227 if (!target_c_local)
2230 tcc_activation_temp = target_c_local;
2235 tcc_activation_temp = TJMAX_DEFAULT;
2236 fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n",
2237 cpu, tcc_activation_temp);
2243 unsigned int eax, ebx, ecx, edx, max_level;
2244 unsigned int fms, family, model, stepping;
2246 eax = ebx = ecx = edx = 0;
2248 __get_cpuid(0, &max_level, &ebx, &ecx, &edx);
2250 if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
2254 fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ",
2255 (char *)&ebx, (char *)&edx, (char *)&ecx);
2257 __get_cpuid(1, &fms, &ebx, &ecx, &edx);
2258 family = (fms >> 8) & 0xf;
2259 model = (fms >> 4) & 0xf;
2260 stepping = fms & 0xf;
2261 if (family == 6 || family == 0xf)
2262 model += ((fms >> 16) & 0xf) << 4;
2265 fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
2266 max_level, family, model, stepping, family, model, stepping);
2268 if (!(edx & (1 << 5)))
2269 errx(1, "CPUID: no MSR");
2272 * check max extended function levels of CPUID.
2273 * This is needed to check for invariant TSC.
2274 * This check is valid for both Intel and AMD.
2276 ebx = ecx = edx = 0;
2277 __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
2279 if (max_level >= 0x80000007) {
2282 * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
2283 * this check is valid for both Intel and AMD
2285 __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
2286 has_invariant_tsc = edx & (1 << 8);
2290 * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0
2291 * this check is valid for both Intel and AMD
2294 __get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
2295 has_aperf = ecx & (1 << 0);
2296 do_dts = eax & (1 << 0);
2297 do_ptm = eax & (1 << 6);
2298 has_epb = ecx & (1 << 3);
2301 fprintf(stderr, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sEPB\n",
2302 has_aperf ? "" : "No ",
2303 do_dts ? "" : "No ",
2304 do_ptm ? "" : "No ",
2305 has_epb ? "" : "No ");
2307 do_nhm_platform_info = do_nhm_cstates = do_smi = probe_nhm_msrs(family, model);
2308 do_snb_cstates = has_snb_msrs(family, model);
2309 do_pc2 = do_snb_cstates && (pkg_cstate_limit >= PCL__2);
2310 do_pc3 = (pkg_cstate_limit >= PCL__3);
2311 do_pc6 = (pkg_cstate_limit >= PCL__6);
2312 do_pc7 = do_snb_cstates && (pkg_cstate_limit >= PCL__7);
2313 do_c8_c9_c10 = has_hsw_msrs(family, model);
2314 do_slm_cstates = is_slm(family, model);
2315 bclk = discover_bclk(family, model);
2317 do_nhm_turbo_ratio_limit = do_nhm_platform_info && has_nhm_turbo_ratio_limit(family, model);
2318 do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model);
2319 rapl_probe(family, model);
2320 perf_limit_reasons_probe(family, model);
2329 "Usage: turbostat [OPTIONS][(--interval seconds) | COMMAND ...]\n"
2331 "Turbostat forks the specified COMMAND and prints statistics\n"
2332 "when COMMAND completes.\n"
2333 "If no COMMAND is specified, turbostat wakes every 5-seconds\n"
2334 "to print statistics, until interrupted.\n"
2335 "--debug run in \"debug\" mode\n"
2336 "--interval sec Override default 5-second measurement interval\n"
2337 "--help print this help message\n"
2338 "--counter msr print 32-bit counter at address \"msr\"\n"
2339 "--Counter msr print 64-bit Counter at address \"msr\"\n"
2340 "--msr msr print 32-bit value at address \"msr\"\n"
2341 "--MSR msr print 64-bit Value at address \"msr\"\n"
2342 "--version print version information\n"
2344 "For more help, run \"man turbostat\"\n");
2349 * in /dev/cpu/ return success for names that are numbers
2350 * ie. filter out ".", "..", "microcode".
2352 int dir_filter(const struct dirent *dirp)
2354 if (isdigit(dirp->d_name[0]))
2360 int open_dev_cpu_msr(int dummy1)
2365 void topology_probe()
2368 int max_core_id = 0;
2369 int max_package_id = 0;
2370 int max_siblings = 0;
2371 struct cpu_topology {
2373 int physical_package_id;
2376 /* Initialize num_cpus, max_cpu_num */
2378 topo.max_cpu_num = 0;
2379 for_all_proc_cpus(count_cpus);
2380 if (!summary_only && topo.num_cpus > 1)
2384 fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num);
2386 cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology));
2388 err(1, "calloc cpus");
2391 * Allocate and initialize cpu_present_set
2393 cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1));
2394 if (cpu_present_set == NULL)
2395 err(3, "CPU_ALLOC");
2396 cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2397 CPU_ZERO_S(cpu_present_setsize, cpu_present_set);
2398 for_all_proc_cpus(mark_cpu_present);
2401 * Allocate and initialize cpu_affinity_set
2403 cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
2404 if (cpu_affinity_set == NULL)
2405 err(3, "CPU_ALLOC");
2406 cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2407 CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
2412 * find max_core_id, max_package_id
2414 for (i = 0; i <= topo.max_cpu_num; ++i) {
2417 if (cpu_is_not_present(i)) {
2419 fprintf(stderr, "cpu%d NOT PRESENT\n", i);
2422 cpus[i].core_id = get_core_id(i);
2423 if (cpus[i].core_id > max_core_id)
2424 max_core_id = cpus[i].core_id;
2426 cpus[i].physical_package_id = get_physical_package_id(i);
2427 if (cpus[i].physical_package_id > max_package_id)
2428 max_package_id = cpus[i].physical_package_id;
2430 siblings = get_num_ht_siblings(i);
2431 if (siblings > max_siblings)
2432 max_siblings = siblings;
2434 fprintf(stderr, "cpu %d pkg %d core %d\n",
2435 i, cpus[i].physical_package_id, cpus[i].core_id);
2437 topo.num_cores_per_pkg = max_core_id + 1;
2439 fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n",
2440 max_core_id, topo.num_cores_per_pkg);
2441 if (debug && !summary_only && topo.num_cores_per_pkg > 1)
2444 topo.num_packages = max_package_id + 1;
2446 fprintf(stderr, "max_package_id %d, sizing for %d packages\n",
2447 max_package_id, topo.num_packages);
2448 if (debug && !summary_only && topo.num_packages > 1)
2451 topo.num_threads_per_core = max_siblings;
2453 fprintf(stderr, "max_siblings %d\n", max_siblings);
2459 allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p)
2463 *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg *
2464 topo.num_packages, sizeof(struct thread_data));
2468 for (i = 0; i < topo.num_threads_per_core *
2469 topo.num_cores_per_pkg * topo.num_packages; i++)
2470 (*t)[i].cpu_id = -1;
2472 *c = calloc(topo.num_cores_per_pkg * topo.num_packages,
2473 sizeof(struct core_data));
2477 for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++)
2478 (*c)[i].core_id = -1;
2480 *p = calloc(topo.num_packages, sizeof(struct pkg_data));
2484 for (i = 0; i < topo.num_packages; i++)
2485 (*p)[i].package_id = i;
2489 err(1, "calloc counters");
2494 * set cpu_id, core_num, pkg_num
2495 * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE
2497 * increment topo.num_cores when 1st core in pkg seen
2499 void init_counter(struct thread_data *thread_base, struct core_data *core_base,
2500 struct pkg_data *pkg_base, int thread_num, int core_num,
2501 int pkg_num, int cpu_id)
2503 struct thread_data *t;
2504 struct core_data *c;
2507 t = GET_THREAD(thread_base, thread_num, core_num, pkg_num);
2508 c = GET_CORE(core_base, core_num, pkg_num);
2509 p = GET_PKG(pkg_base, pkg_num);
2512 if (thread_num == 0) {
2513 t->flags |= CPU_IS_FIRST_THREAD_IN_CORE;
2514 if (cpu_is_first_core_in_package(cpu_id))
2515 t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE;
2518 c->core_id = core_num;
2519 p->package_id = pkg_num;
2523 int initialize_counters(int cpu_id)
2525 int my_thread_id, my_core_id, my_package_id;
2527 my_package_id = get_physical_package_id(cpu_id);
2528 my_core_id = get_core_id(cpu_id);
2530 if (cpu_is_first_sibling_in_core(cpu_id)) {
2537 init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2538 init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2542 void allocate_output_buffer()
2544 output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
2545 outp = output_buffer;
2547 err(-1, "calloc output buffer");
2550 void setup_all_buffers(void)
2553 allocate_counters(&thread_even, &core_even, &package_even);
2554 allocate_counters(&thread_odd, &core_odd, &package_odd);
2555 allocate_output_buffer();
2556 for_all_proc_cpus(initialize_counters);
2559 void turbostat_init()
2562 check_permissions();
2565 setup_all_buffers();
2568 dump_system_config_info();
2571 for_all_cpus(print_epb, ODD_COUNTERS);
2574 for_all_cpus(print_perf_limit, ODD_COUNTERS);
2577 for_all_cpus(print_rapl, ODD_COUNTERS);
2579 for_all_cpus(set_temperature_target, ODD_COUNTERS);
2582 for_all_cpus(print_thermal, ODD_COUNTERS);
2585 int fork_it(char **argv)
2590 status = for_all_cpus(get_counters, EVEN_COUNTERS);
2593 /* clear affinity side-effect of get_counters() */
2594 sched_setaffinity(0, cpu_present_setsize, cpu_present_set);
2595 gettimeofday(&tv_even, (struct timezone *)NULL);
2600 execvp(argv[0], argv);
2604 if (child_pid == -1)
2607 signal(SIGINT, SIG_IGN);
2608 signal(SIGQUIT, SIG_IGN);
2609 if (waitpid(child_pid, &status, 0) == -1)
2610 err(status, "waitpid");
2613 * n.b. fork_it() does not check for errors from for_all_cpus()
2614 * because re-starting is problematic when forking
2616 for_all_cpus(get_counters, ODD_COUNTERS);
2617 gettimeofday(&tv_odd, (struct timezone *)NULL);
2618 timersub(&tv_odd, &tv_even, &tv_delta);
2619 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
2620 compute_average(EVEN_COUNTERS);
2621 format_all_counters(EVEN_COUNTERS);
2624 fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
2629 int get_and_dump_counters(void)
2633 status = for_all_cpus(get_counters, ODD_COUNTERS);
2637 status = for_all_cpus(dump_counters, ODD_COUNTERS);
2646 void print_version() {
2647 fprintf(stderr, "turbostat version 4.1 10-Feb, 2015"
2648 " - Len Brown <lenb@kernel.org>\n");
2651 void cmdline(int argc, char **argv)
2654 int option_index = 0;
2655 static struct option long_options[] = {
2656 {"Counter", required_argument, 0, 'C'},
2657 {"counter", required_argument, 0, 'c'},
2658 {"Dump", no_argument, 0, 'D'},
2659 {"debug", no_argument, 0, 'd'},
2660 {"interval", required_argument, 0, 'i'},
2661 {"help", no_argument, 0, 'h'},
2662 {"Joules", no_argument, 0, 'J'},
2663 {"MSR", required_argument, 0, 'M'},
2664 {"msr", required_argument, 0, 'm'},
2665 {"Package", no_argument, 0, 'p'},
2666 {"processor", no_argument, 0, 'p'},
2667 {"Summary", no_argument, 0, 'S'},
2668 {"TCC", required_argument, 0, 'T'},
2669 {"version", no_argument, 0, 'v' },
2675 while ((opt = getopt_long_only(argc, argv, "C:c:Ddhi:JM:m:PpST:v",
2676 long_options, &option_index)) != -1) {
2679 sscanf(optarg, "%x", &extra_delta_offset64);
2682 sscanf(optarg, "%x", &extra_delta_offset32);
2695 interval_sec = atoi(optarg);
2701 sscanf(optarg, "%x", &extra_msr_offset64);
2704 sscanf(optarg, "%x", &extra_msr_offset32);
2716 tcc_activation_temp_override = atoi(optarg);
2726 int main(int argc, char **argv)
2728 cmdline(argc, argv);
2735 /* dump counters and exit */
2737 return get_and_dump_counters();
2740 * if any params left, it must be a command to fork
2743 return fork_it(argv + optind);