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 outp += sprintf(outp, " SMI");
297 if (extra_delta_offset32)
298 outp += sprintf(outp, " count 0x%03X", extra_delta_offset32);
299 if (extra_delta_offset64)
300 outp += sprintf(outp, " COUNT 0x%03X", extra_delta_offset64);
301 if (extra_msr_offset32)
302 outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32);
303 if (extra_msr_offset64)
304 outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64);
306 outp += sprintf(outp, " CPU%%c1");
307 if (do_nhm_cstates && !do_slm_cstates)
308 outp += sprintf(outp, " CPU%%c3");
310 outp += sprintf(outp, " CPU%%c6");
312 outp += sprintf(outp, " CPU%%c7");
315 outp += sprintf(outp, " CoreTmp");
317 outp += sprintf(outp, " PkgTmp");
320 outp += sprintf(outp, " Pkg%%pc2");
322 outp += sprintf(outp, " Pkg%%pc3");
324 outp += sprintf(outp, " Pkg%%pc6");
326 outp += sprintf(outp, " Pkg%%pc7");
328 outp += sprintf(outp, " Pkg%%pc8");
329 outp += sprintf(outp, " Pkg%%pc9");
330 outp += sprintf(outp, " Pk%%pc10");
333 if (do_rapl && !rapl_joules) {
334 if (do_rapl & RAPL_PKG)
335 outp += sprintf(outp, " PkgWatt");
336 if (do_rapl & RAPL_CORES)
337 outp += sprintf(outp, " CorWatt");
338 if (do_rapl & RAPL_GFX)
339 outp += sprintf(outp, " GFXWatt");
340 if (do_rapl & RAPL_DRAM)
341 outp += sprintf(outp, " RAMWatt");
342 if (do_rapl & RAPL_PKG_PERF_STATUS)
343 outp += sprintf(outp, " PKG_%%");
344 if (do_rapl & RAPL_DRAM_PERF_STATUS)
345 outp += sprintf(outp, " RAM_%%");
346 } else if (do_rapl && rapl_joules) {
347 if (do_rapl & RAPL_PKG)
348 outp += sprintf(outp, " Pkg_J");
349 if (do_rapl & RAPL_CORES)
350 outp += sprintf(outp, " Cor_J");
351 if (do_rapl & RAPL_GFX)
352 outp += sprintf(outp, " GFX_J");
353 if (do_rapl & RAPL_DRAM)
354 outp += sprintf(outp, " RAM_W");
355 if (do_rapl & RAPL_PKG_PERF_STATUS)
356 outp += sprintf(outp, " PKG_%%");
357 if (do_rapl & RAPL_DRAM_PERF_STATUS)
358 outp += sprintf(outp, " RAM_%%");
359 outp += sprintf(outp, " time");
362 outp += sprintf(outp, "\n");
365 int dump_counters(struct thread_data *t, struct core_data *c,
368 outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p);
371 outp += sprintf(outp, "CPU: %d flags 0x%x\n",
372 t->cpu_id, t->flags);
373 outp += sprintf(outp, "TSC: %016llX\n", t->tsc);
374 outp += sprintf(outp, "aperf: %016llX\n", t->aperf);
375 outp += sprintf(outp, "mperf: %016llX\n", t->mperf);
376 outp += sprintf(outp, "c1: %016llX\n", t->c1);
377 outp += sprintf(outp, "msr0x%x: %08llX\n",
378 extra_delta_offset32, t->extra_delta32);
379 outp += sprintf(outp, "msr0x%x: %016llX\n",
380 extra_delta_offset64, t->extra_delta64);
381 outp += sprintf(outp, "msr0x%x: %08llX\n",
382 extra_msr_offset32, t->extra_msr32);
383 outp += sprintf(outp, "msr0x%x: %016llX\n",
384 extra_msr_offset64, t->extra_msr64);
386 outp += sprintf(outp, "SMI: %08X\n", t->smi_count);
390 outp += sprintf(outp, "core: %d\n", c->core_id);
391 outp += sprintf(outp, "c3: %016llX\n", c->c3);
392 outp += sprintf(outp, "c6: %016llX\n", c->c6);
393 outp += sprintf(outp, "c7: %016llX\n", c->c7);
394 outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c);
398 outp += sprintf(outp, "package: %d\n", p->package_id);
399 outp += sprintf(outp, "pc2: %016llX\n", p->pc2);
401 outp += sprintf(outp, "pc3: %016llX\n", p->pc3);
403 outp += sprintf(outp, "pc6: %016llX\n", p->pc6);
405 outp += sprintf(outp, "pc7: %016llX\n", p->pc7);
406 outp += sprintf(outp, "pc8: %016llX\n", p->pc8);
407 outp += sprintf(outp, "pc9: %016llX\n", p->pc9);
408 outp += sprintf(outp, "pc10: %016llX\n", p->pc10);
409 outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg);
410 outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores);
411 outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx);
412 outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram);
413 outp += sprintf(outp, "Throttle PKG: %0X\n",
414 p->rapl_pkg_perf_status);
415 outp += sprintf(outp, "Throttle RAM: %0X\n",
416 p->rapl_dram_perf_status);
417 outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c);
420 outp += sprintf(outp, "\n");
426 * column formatting convention & formats
428 int format_counters(struct thread_data *t, struct core_data *c,
431 double interval_float;
434 /* if showing only 1st thread in core and this isn't one, bail out */
435 if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
438 /* if showing only 1st thread in pkg and this isn't one, bail out */
439 if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
442 interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
444 /* topo columns, print blanks on 1st (average) line */
445 if (t == &average.threads) {
447 outp += sprintf(outp, " -");
449 outp += sprintf(outp, " -");
451 outp += sprintf(outp, " -");
455 outp += sprintf(outp, "%8d", p->package_id);
457 outp += sprintf(outp, " -");
461 outp += sprintf(outp, "%8d", c->core_id);
463 outp += sprintf(outp, " -");
466 outp += sprintf(outp, "%8d", t->cpu_id);
471 outp += sprintf(outp, "%8.0f",
472 1.0 / units * t->aperf / interval_float);
477 outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc);
479 outp += sprintf(outp, "********");
484 outp += sprintf(outp, "%8.0f",
485 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);
488 outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
492 outp += sprintf(outp, "%8d", t->smi_count);
495 if (extra_delta_offset32)
496 outp += sprintf(outp, " %11llu", t->extra_delta32);
499 if (extra_delta_offset64)
500 outp += sprintf(outp, " %11llu", t->extra_delta64);
502 if (extra_msr_offset32)
503 outp += sprintf(outp, " 0x%08llx", t->extra_msr32);
506 if (extra_msr_offset64)
507 outp += sprintf(outp, " 0x%016llx", t->extra_msr64);
509 if (do_nhm_cstates) {
511 outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc);
513 outp += sprintf(outp, "********");
516 /* print per-core data only for 1st thread in core */
517 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
520 if (do_nhm_cstates && !do_slm_cstates)
521 outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc);
523 outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc);
525 outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc);
528 outp += sprintf(outp, "%8d", c->core_temp_c);
530 /* print per-package data only for 1st core in package */
531 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
535 outp += sprintf(outp, "%8d", p->pkg_temp_c);
538 outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc);
540 outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc);
542 outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc);
544 outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc);
546 outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc);
547 outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc);
548 outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc);
552 * If measurement interval exceeds minimum RAPL Joule Counter range,
553 * indicate that results are suspect by printing "**" in fraction place.
555 if (interval_float < rapl_joule_counter_range)
560 if (do_rapl && !rapl_joules) {
561 if (do_rapl & RAPL_PKG)
562 outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float);
563 if (do_rapl & RAPL_CORES)
564 outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float);
565 if (do_rapl & RAPL_GFX)
566 outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float);
567 if (do_rapl & RAPL_DRAM)
568 outp += sprintf(outp, fmt8, p->energy_dram * rapl_energy_units / interval_float);
569 if (do_rapl & RAPL_PKG_PERF_STATUS)
570 outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
571 if (do_rapl & RAPL_DRAM_PERF_STATUS)
572 outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
573 } else if (do_rapl && rapl_joules) {
574 if (do_rapl & RAPL_PKG)
575 outp += sprintf(outp, fmt8,
576 p->energy_pkg * rapl_energy_units);
577 if (do_rapl & RAPL_CORES)
578 outp += sprintf(outp, fmt8,
579 p->energy_cores * rapl_energy_units);
580 if (do_rapl & RAPL_GFX)
581 outp += sprintf(outp, fmt8,
582 p->energy_gfx * rapl_energy_units);
583 if (do_rapl & RAPL_DRAM)
584 outp += sprintf(outp, fmt8,
585 p->energy_dram * rapl_energy_units);
586 if (do_rapl & RAPL_PKG_PERF_STATUS)
587 outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
588 if (do_rapl & RAPL_DRAM_PERF_STATUS)
589 outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
591 outp += sprintf(outp, fmt8, interval_float);
594 outp += sprintf(outp, "\n");
601 fputs(output_buffer, stdout);
603 outp = output_buffer;
607 fputs(output_buffer, stderr);
608 outp = output_buffer;
610 void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
614 if (!printed || !summary_only)
617 if (topo.num_cpus > 1)
618 format_counters(&average.threads, &average.cores,
626 for_all_cpus(format_counters, t, c, p);
629 #define DELTA_WRAP32(new, old) \
633 old = 0x100000000 + new - old; \
637 delta_package(struct pkg_data *new, struct pkg_data *old)
639 old->pc2 = new->pc2 - old->pc2;
641 old->pc3 = new->pc3 - old->pc3;
643 old->pc6 = new->pc6 - old->pc6;
645 old->pc7 = new->pc7 - old->pc7;
646 old->pc8 = new->pc8 - old->pc8;
647 old->pc9 = new->pc9 - old->pc9;
648 old->pc10 = new->pc10 - old->pc10;
649 old->pkg_temp_c = new->pkg_temp_c;
651 DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
652 DELTA_WRAP32(new->energy_cores, old->energy_cores);
653 DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
654 DELTA_WRAP32(new->energy_dram, old->energy_dram);
655 DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
656 DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
660 delta_core(struct core_data *new, struct core_data *old)
662 old->c3 = new->c3 - old->c3;
663 old->c6 = new->c6 - old->c6;
664 old->c7 = new->c7 - old->c7;
665 old->core_temp_c = new->core_temp_c;
672 delta_thread(struct thread_data *new, struct thread_data *old,
673 struct core_data *core_delta)
675 old->tsc = new->tsc - old->tsc;
677 /* check for TSC < 1 Mcycles over interval */
678 if (old->tsc < (1000 * 1000))
679 errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n"
680 "You can disable all c-states by booting with \"idle=poll\"\n"
681 "or just the deep ones with \"processor.max_cstate=1\"");
683 old->c1 = new->c1 - old->c1;
686 if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
687 old->aperf = new->aperf - old->aperf;
688 old->mperf = new->mperf - old->mperf;
691 if (!aperf_mperf_unstable) {
692 fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname);
693 fprintf(stderr, "* Frequency results do not cover entire interval *\n");
694 fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n");
696 aperf_mperf_unstable = 1;
699 * mperf delta is likely a huge "positive" number
700 * can not use it for calculating c0 time
708 if (use_c1_residency_msr) {
710 * Some models have a dedicated C1 residency MSR,
711 * which should be more accurate than the derivation below.
715 * As counter collection is not atomic,
716 * it is possible for mperf's non-halted cycles + idle states
717 * to exceed TSC's all cycles: show c1 = 0% in that case.
719 if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
722 /* normal case, derive c1 */
723 old->c1 = old->tsc - old->mperf - core_delta->c3
724 - core_delta->c6 - core_delta->c7;
728 if (old->mperf == 0) {
729 if (debug > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id);
730 old->mperf = 1; /* divide by 0 protection */
733 old->extra_delta32 = new->extra_delta32 - old->extra_delta32;
734 old->extra_delta32 &= 0xFFFFFFFF;
736 old->extra_delta64 = new->extra_delta64 - old->extra_delta64;
739 * Extra MSR is just a snapshot, simply copy latest w/o subtracting
741 old->extra_msr32 = new->extra_msr32;
742 old->extra_msr64 = new->extra_msr64;
745 old->smi_count = new->smi_count - old->smi_count;
748 int delta_cpu(struct thread_data *t, struct core_data *c,
749 struct pkg_data *p, struct thread_data *t2,
750 struct core_data *c2, struct pkg_data *p2)
752 /* calculate core delta only for 1st thread in core */
753 if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
756 /* always calculate thread delta */
757 delta_thread(t, t2, c2); /* c2 is core delta */
759 /* calculate package delta only for 1st core in package */
760 if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
761 delta_package(p, p2);
766 void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
774 t->extra_delta32 = 0;
775 t->extra_delta64 = 0;
777 /* tells format_counters to dump all fields from this set */
778 t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;
800 p->rapl_pkg_perf_status = 0;
801 p->rapl_dram_perf_status = 0;
804 int sum_counters(struct thread_data *t, struct core_data *c,
807 average.threads.tsc += t->tsc;
808 average.threads.aperf += t->aperf;
809 average.threads.mperf += t->mperf;
810 average.threads.c1 += t->c1;
812 average.threads.extra_delta32 += t->extra_delta32;
813 average.threads.extra_delta64 += t->extra_delta64;
815 /* sum per-core values only for 1st thread in core */
816 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
819 average.cores.c3 += c->c3;
820 average.cores.c6 += c->c6;
821 average.cores.c7 += c->c7;
823 average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c);
825 /* sum per-pkg values only for 1st core in pkg */
826 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
829 average.packages.pc2 += p->pc2;
831 average.packages.pc3 += p->pc3;
833 average.packages.pc6 += p->pc6;
835 average.packages.pc7 += p->pc7;
836 average.packages.pc8 += p->pc8;
837 average.packages.pc9 += p->pc9;
838 average.packages.pc10 += p->pc10;
840 average.packages.energy_pkg += p->energy_pkg;
841 average.packages.energy_dram += p->energy_dram;
842 average.packages.energy_cores += p->energy_cores;
843 average.packages.energy_gfx += p->energy_gfx;
845 average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c);
847 average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status;
848 average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status;
852 * sum the counters for all cpus in the system
853 * compute the weighted average
855 void compute_average(struct thread_data *t, struct core_data *c,
858 clear_counters(&average.threads, &average.cores, &average.packages);
860 for_all_cpus(sum_counters, t, c, p);
862 average.threads.tsc /= topo.num_cpus;
863 average.threads.aperf /= topo.num_cpus;
864 average.threads.mperf /= topo.num_cpus;
865 average.threads.c1 /= topo.num_cpus;
867 average.threads.extra_delta32 /= topo.num_cpus;
868 average.threads.extra_delta32 &= 0xFFFFFFFF;
870 average.threads.extra_delta64 /= topo.num_cpus;
872 average.cores.c3 /= topo.num_cores;
873 average.cores.c6 /= topo.num_cores;
874 average.cores.c7 /= topo.num_cores;
876 average.packages.pc2 /= topo.num_packages;
878 average.packages.pc3 /= topo.num_packages;
880 average.packages.pc6 /= topo.num_packages;
882 average.packages.pc7 /= topo.num_packages;
884 average.packages.pc8 /= topo.num_packages;
885 average.packages.pc9 /= topo.num_packages;
886 average.packages.pc10 /= topo.num_packages;
889 static unsigned long long rdtsc(void)
891 unsigned int low, high;
893 asm volatile("rdtsc" : "=a" (low), "=d" (high));
895 return low | ((unsigned long long)high) << 32;
902 * acquire and record local counters for that cpu
904 int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
907 unsigned long long msr;
909 if (cpu_migrate(cpu)) {
910 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
914 t->tsc = rdtsc(); /* we are running on local CPU of interest */
917 if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
919 if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf))
924 if (get_msr(cpu, MSR_SMI_COUNT, &msr))
926 t->smi_count = msr & 0xFFFFFFFF;
928 if (extra_delta_offset32) {
929 if (get_msr(cpu, extra_delta_offset32, &msr))
931 t->extra_delta32 = msr & 0xFFFFFFFF;
934 if (extra_delta_offset64)
935 if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64))
938 if (extra_msr_offset32) {
939 if (get_msr(cpu, extra_msr_offset32, &msr))
941 t->extra_msr32 = msr & 0xFFFFFFFF;
944 if (extra_msr_offset64)
945 if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
948 if (use_c1_residency_msr) {
949 if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
953 /* collect core counters only for 1st thread in core */
954 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
957 if (do_nhm_cstates && !do_slm_cstates) {
958 if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
962 if (do_nhm_cstates) {
963 if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
968 if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7))
972 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
974 c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
978 /* collect package counters only for 1st core in package */
979 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
983 if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
986 if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
989 if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2))
992 if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7))
995 if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8))
997 if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9))
999 if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10))
1002 if (do_rapl & RAPL_PKG) {
1003 if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr))
1005 p->energy_pkg = msr & 0xFFFFFFFF;
1007 if (do_rapl & RAPL_CORES) {
1008 if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr))
1010 p->energy_cores = msr & 0xFFFFFFFF;
1012 if (do_rapl & RAPL_DRAM) {
1013 if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr))
1015 p->energy_dram = msr & 0xFFFFFFFF;
1017 if (do_rapl & RAPL_GFX) {
1018 if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr))
1020 p->energy_gfx = msr & 0xFFFFFFFF;
1022 if (do_rapl & RAPL_PKG_PERF_STATUS) {
1023 if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr))
1025 p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
1027 if (do_rapl & RAPL_DRAM_PERF_STATUS) {
1028 if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr))
1030 p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
1033 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
1035 p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
1041 * MSR_PKG_CST_CONFIG_CONTROL decoding for pkg_cstate_limit:
1042 * If you change the values, note they are used both in comparisons
1043 * (>= PCL__7) and to index pkg_cstate_limit_strings[].
1046 #define PCLUKN 0 /* Unknown */
1047 #define PCLRSV 1 /* Reserved */
1048 #define PCL__0 2 /* PC0 */
1049 #define PCL__1 3 /* PC1 */
1050 #define PCL__2 4 /* PC2 */
1051 #define PCL__3 5 /* PC3 */
1052 #define PCL__4 6 /* PC4 */
1053 #define PCL__6 7 /* PC6 */
1054 #define PCL_6N 8 /* PC6 No Retention */
1055 #define PCL_6R 9 /* PC6 Retention */
1056 #define PCL__7 10 /* PC7 */
1057 #define PCL_7S 11 /* PC7 Shrink */
1058 #define PCLUNL 12 /* Unlimited */
1060 int pkg_cstate_limit = PCLUKN;
1061 char *pkg_cstate_limit_strings[] = { "reserved", "unknown", "pc0", "pc1", "pc2",
1062 "pc3", "pc4", "pc6", "pc6n", "pc6r", "pc7", "pc7s", "unlimited"};
1064 int nhm_pkg_cstate_limits[8] = {PCL__0, PCL__1, PCL__3, PCL__6, PCL__7, PCLRSV, PCLRSV, PCLUNL};
1065 int snb_pkg_cstate_limits[8] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCL__7, PCL_7S, PCLRSV, PCLUNL};
1066 int hsw_pkg_cstate_limits[8] = {PCL__0, PCL__2, PCL__3, PCL__6, PCL__7, PCL_7S, PCLRSV, PCLUNL};
1067 int slv_pkg_cstate_limits[8] = {PCL__0, PCL__1, PCLRSV, PCLRSV, PCL__4, PCLRSV, PCL__6, PCL__7};
1068 int amt_pkg_cstate_limits[8] = {PCL__0, PCL__1, PCL__2, PCLRSV, PCLRSV, PCLRSV, PCL__6, PCL__7};
1069 int phi_pkg_cstate_limits[8] = {PCL__0, PCL__2, PCL_6N, PCL_6R, PCLRSV, PCLRSV, PCLRSV, PCLUNL};
1071 void print_verbose_header(void)
1073 unsigned long long msr;
1076 if (!do_nhm_platform_info)
1079 get_msr(0, MSR_NHM_PLATFORM_INFO, &msr);
1081 fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr);
1083 ratio = (msr >> 40) & 0xFF;
1084 fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n",
1085 ratio, bclk, ratio * bclk);
1087 ratio = (msr >> 8) & 0xFF;
1088 fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n",
1089 ratio, bclk, ratio * bclk);
1091 get_msr(0, MSR_IA32_POWER_CTL, &msr);
1092 fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
1093 msr, msr & 0x2 ? "EN" : "DIS");
1095 if (!do_ivt_turbo_ratio_limit)
1096 goto print_nhm_turbo_ratio_limits;
1098 get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr);
1100 fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr);
1102 ratio = (msr >> 56) & 0xFF;
1104 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n",
1105 ratio, bclk, ratio * bclk);
1107 ratio = (msr >> 48) & 0xFF;
1109 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n",
1110 ratio, bclk, ratio * bclk);
1112 ratio = (msr >> 40) & 0xFF;
1114 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n",
1115 ratio, bclk, ratio * bclk);
1117 ratio = (msr >> 32) & 0xFF;
1119 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n",
1120 ratio, bclk, ratio * bclk);
1122 ratio = (msr >> 24) & 0xFF;
1124 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n",
1125 ratio, bclk, ratio * bclk);
1127 ratio = (msr >> 16) & 0xFF;
1129 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n",
1130 ratio, bclk, ratio * bclk);
1132 ratio = (msr >> 8) & 0xFF;
1134 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n",
1135 ratio, bclk, ratio * bclk);
1137 ratio = (msr >> 0) & 0xFF;
1139 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n",
1140 ratio, bclk, ratio * bclk);
1142 print_nhm_turbo_ratio_limits:
1143 get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1145 #define SNB_C1_AUTO_UNDEMOTE (1UL << 27)
1146 #define SNB_C3_AUTO_UNDEMOTE (1UL << 28)
1148 fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr);
1150 fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: %s)\n",
1151 (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
1152 (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
1153 (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
1154 (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
1155 (msr & (1 << 15)) ? "" : "UN",
1156 (unsigned int)msr & 7,
1157 pkg_cstate_limit_strings[pkg_cstate_limit]);
1159 if (!do_nhm_turbo_ratio_limit)
1162 get_msr(0, MSR_NHM_TURBO_RATIO_LIMIT, &msr);
1164 fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr);
1166 ratio = (msr >> 56) & 0xFF;
1168 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n",
1169 ratio, bclk, ratio * bclk);
1171 ratio = (msr >> 48) & 0xFF;
1173 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n",
1174 ratio, bclk, ratio * bclk);
1176 ratio = (msr >> 40) & 0xFF;
1178 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n",
1179 ratio, bclk, ratio * bclk);
1181 ratio = (msr >> 32) & 0xFF;
1183 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n",
1184 ratio, bclk, ratio * bclk);
1186 ratio = (msr >> 24) & 0xFF;
1188 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n",
1189 ratio, bclk, ratio * bclk);
1191 ratio = (msr >> 16) & 0xFF;
1193 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n",
1194 ratio, bclk, ratio * bclk);
1196 ratio = (msr >> 8) & 0xFF;
1198 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n",
1199 ratio, bclk, ratio * bclk);
1201 ratio = (msr >> 0) & 0xFF;
1203 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n",
1204 ratio, bclk, ratio * bclk);
1208 void free_all_buffers(void)
1210 CPU_FREE(cpu_present_set);
1211 cpu_present_set = NULL;
1212 cpu_present_set = 0;
1214 CPU_FREE(cpu_affinity_set);
1215 cpu_affinity_set = NULL;
1216 cpu_affinity_setsize = 0;
1224 package_even = NULL;
1234 free(output_buffer);
1235 output_buffer = NULL;
1240 * Open a file, and exit on failure
1242 FILE *fopen_or_die(const char *path, const char *mode)
1244 FILE *filep = fopen(path, "r");
1246 err(1, "%s: open failed", path);
1251 * Parse a file containing a single int.
1253 int parse_int_file(const char *fmt, ...)
1256 char path[PATH_MAX];
1260 va_start(args, fmt);
1261 vsnprintf(path, sizeof(path), fmt, args);
1263 filep = fopen_or_die(path, "r");
1264 if (fscanf(filep, "%d", &value) != 1)
1265 err(1, "%s: failed to parse number from file", path);
1271 * cpu_is_first_sibling_in_core(cpu)
1272 * return 1 if given CPU is 1st HT sibling in the core
1274 int cpu_is_first_sibling_in_core(int cpu)
1276 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1280 * cpu_is_first_core_in_package(cpu)
1281 * return 1 if given CPU is 1st core in package
1283 int cpu_is_first_core_in_package(int cpu)
1285 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
1288 int get_physical_package_id(int cpu)
1290 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
1293 int get_core_id(int cpu)
1295 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
1298 int get_num_ht_siblings(int cpu)
1306 sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1307 filep = fopen_or_die(path, "r");
1310 * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4)
1311 * otherwinse 1 sibling (self).
1313 matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2);
1324 * run func(thread, core, package) in topology order
1325 * skip non-present cpus
1328 int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
1329 struct pkg_data *, struct thread_data *, struct core_data *,
1330 struct pkg_data *), struct thread_data *thread_base,
1331 struct core_data *core_base, struct pkg_data *pkg_base,
1332 struct thread_data *thread_base2, struct core_data *core_base2,
1333 struct pkg_data *pkg_base2)
1335 int retval, pkg_no, core_no, thread_no;
1337 for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
1338 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
1339 for (thread_no = 0; thread_no <
1340 topo.num_threads_per_core; ++thread_no) {
1341 struct thread_data *t, *t2;
1342 struct core_data *c, *c2;
1343 struct pkg_data *p, *p2;
1345 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
1347 if (cpu_is_not_present(t->cpu_id))
1350 t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
1352 c = GET_CORE(core_base, core_no, pkg_no);
1353 c2 = GET_CORE(core_base2, core_no, pkg_no);
1355 p = GET_PKG(pkg_base, pkg_no);
1356 p2 = GET_PKG(pkg_base2, pkg_no);
1358 retval = func(t, c, p, t2, c2, p2);
1368 * run func(cpu) on every cpu in /proc/stat
1369 * return max_cpu number
1371 int for_all_proc_cpus(int (func)(int))
1377 fp = fopen_or_die(proc_stat, "r");
1379 retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
1381 err(1, "%s: failed to parse format", proc_stat);
1384 retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
1388 retval = func(cpu_num);
1398 void re_initialize(void)
1401 setup_all_buffers();
1402 printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus);
1408 * remember the last one seen, it will be the max
1410 int count_cpus(int cpu)
1412 if (topo.max_cpu_num < cpu)
1413 topo.max_cpu_num = cpu;
1418 int mark_cpu_present(int cpu)
1420 CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
1424 void turbostat_loop()
1432 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1435 } else if (retval == -1) {
1436 if (restarted > 1) {
1443 gettimeofday(&tv_even, (struct timezone *)NULL);
1446 if (for_all_proc_cpus(cpu_is_not_present)) {
1450 sleep(interval_sec);
1451 retval = for_all_cpus(get_counters, ODD_COUNTERS);
1454 } else if (retval == -1) {
1458 gettimeofday(&tv_odd, (struct timezone *)NULL);
1459 timersub(&tv_odd, &tv_even, &tv_delta);
1460 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
1461 compute_average(EVEN_COUNTERS);
1462 format_all_counters(EVEN_COUNTERS);
1464 sleep(interval_sec);
1465 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1468 } else if (retval == -1) {
1472 gettimeofday(&tv_even, (struct timezone *)NULL);
1473 timersub(&tv_even, &tv_odd, &tv_delta);
1474 for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS);
1475 compute_average(ODD_COUNTERS);
1476 format_all_counters(ODD_COUNTERS);
1481 void check_dev_msr()
1485 if (stat("/dev/cpu/0/msr", &sb))
1486 err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" ");
1489 void check_permissions()
1491 struct __user_cap_header_struct cap_header_data;
1492 cap_user_header_t cap_header = &cap_header_data;
1493 struct __user_cap_data_struct cap_data_data;
1494 cap_user_data_t cap_data = &cap_data_data;
1495 extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
1498 /* check for CAP_SYS_RAWIO */
1499 cap_header->pid = getpid();
1500 cap_header->version = _LINUX_CAPABILITY_VERSION;
1501 if (capget(cap_header, cap_data) < 0)
1502 err(-6, "capget(2) failed");
1504 if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) {
1506 warnx("capget(CAP_SYS_RAWIO) failed,"
1507 " try \"# setcap cap_sys_rawio=ep %s\"", progname);
1510 /* test file permissions */
1511 if (euidaccess("/dev/cpu/0/msr", R_OK)) {
1513 warn("/dev/cpu/0/msr open failed, try chown or chmod +r /dev/cpu/*/msr");
1516 /* if all else fails, thell them to be root */
1519 warnx("... or simply run as root");
1526 * NHM adds support for additional MSRs:
1528 * MSR_SMI_COUNT 0x00000034
1530 * MSR_NHM_PLATFORM_INFO 0x000000ce
1531 * MSR_NHM_SNB_PKG_CST_CFG_CTL 0x000000e2
1533 * MSR_PKG_C3_RESIDENCY 0x000003f8
1534 * MSR_PKG_C6_RESIDENCY 0x000003f9
1535 * MSR_CORE_C3_RESIDENCY 0x000003fc
1536 * MSR_CORE_C6_RESIDENCY 0x000003fd
1539 * sets global pkg_cstate_limit to decode MSR_NHM_SNB_PKG_CST_CFG_CTL
1541 int probe_nhm_msrs(unsigned int family, unsigned int model)
1543 unsigned long long msr;
1544 int *pkg_cstate_limits;
1553 case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
1554 case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
1555 case 0x1F: /* Core i7 and i5 Processor - Nehalem */
1556 case 0x25: /* Westmere Client - Clarkdale, Arrandale */
1557 case 0x2C: /* Westmere EP - Gulftown */
1558 case 0x2E: /* Nehalem-EX Xeon - Beckton */
1559 case 0x2F: /* Westmere-EX Xeon - Eagleton */
1560 pkg_cstate_limits = nhm_pkg_cstate_limits;
1562 case 0x2A: /* SNB */
1563 case 0x2D: /* SNB Xeon */
1564 case 0x3A: /* IVB */
1565 case 0x3E: /* IVB Xeon */
1566 pkg_cstate_limits = snb_pkg_cstate_limits;
1568 case 0x3C: /* HSW */
1569 case 0x3F: /* HSX */
1570 case 0x45: /* HSW */
1571 case 0x46: /* HSW */
1572 case 0x3D: /* BDW */
1573 case 0x47: /* BDW */
1574 case 0x4F: /* BDX */
1575 case 0x56: /* BDX-DE */
1576 pkg_cstate_limits = hsw_pkg_cstate_limits;
1578 case 0x37: /* BYT */
1579 case 0x4D: /* AVN */
1580 pkg_cstate_limits = slv_pkg_cstate_limits;
1582 case 0x4C: /* AMT */
1583 pkg_cstate_limits = amt_pkg_cstate_limits;
1585 case 0x57: /* PHI */
1586 pkg_cstate_limits = phi_pkg_cstate_limits;
1591 get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1593 pkg_cstate_limit = pkg_cstate_limits[msr & 0x7];
1597 int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
1600 /* Nehalem compatible, but do not include turbo-ratio limit support */
1601 case 0x2E: /* Nehalem-EX Xeon - Beckton */
1602 case 0x2F: /* Westmere-EX Xeon - Eagleton */
1608 int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
1617 case 0x3E: /* IVB Xeon */
1626 * Decode the ENERGY_PERF_BIAS MSR
1628 int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1630 unsigned long long msr;
1639 /* EPB is per-package */
1640 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1643 if (cpu_migrate(cpu)) {
1644 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1648 if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
1651 switch (msr & 0x7) {
1652 case ENERGY_PERF_BIAS_PERFORMANCE:
1653 epb_string = "performance";
1655 case ENERGY_PERF_BIAS_NORMAL:
1656 epb_string = "balanced";
1658 case ENERGY_PERF_BIAS_POWERSAVE:
1659 epb_string = "powersave";
1662 epb_string = "custom";
1665 fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string);
1671 * print_perf_limit()
1673 int print_perf_limit(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1675 unsigned long long msr;
1681 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1684 if (cpu_migrate(cpu)) {
1685 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1689 if (do_core_perf_limit_reasons) {
1690 get_msr(cpu, MSR_CORE_PERF_LIMIT_REASONS, &msr);
1691 fprintf(stderr, "cpu%d: MSR_CORE_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
1692 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)",
1693 (msr & 1 << 0) ? "PROCHOT, " : "",
1694 (msr & 1 << 1) ? "ThermStatus, " : "",
1695 (msr & 1 << 2) ? "bit2, " : "",
1696 (msr & 1 << 4) ? "Graphics, " : "",
1697 (msr & 1 << 5) ? "Auto-HWP, " : "",
1698 (msr & 1 << 6) ? "VR-Therm, " : "",
1699 (msr & 1 << 8) ? "Amps, " : "",
1700 (msr & 1 << 9) ? "CorePwr, " : "",
1701 (msr & 1 << 10) ? "PkgPwrL1, " : "",
1702 (msr & 1 << 11) ? "PkgPwrL2, " : "",
1703 (msr & 1 << 12) ? "MultiCoreTurbo, " : "",
1704 (msr & 1 << 13) ? "Transitions, " : "",
1705 (msr & 1 << 14) ? "bit14, " : "",
1706 (msr & 1 << 15) ? "bit15, " : "");
1707 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s%s%s%s%s%s%s)\n",
1708 (msr & 1 << 16) ? "PROCHOT, " : "",
1709 (msr & 1 << 17) ? "ThermStatus, " : "",
1710 (msr & 1 << 18) ? "bit18, " : "",
1711 (msr & 1 << 20) ? "Graphics, " : "",
1712 (msr & 1 << 21) ? "Auto-HWP, " : "",
1713 (msr & 1 << 22) ? "VR-Therm, " : "",
1714 (msr & 1 << 24) ? "Amps, " : "",
1715 (msr & 1 << 25) ? "CorePwr, " : "",
1716 (msr & 1 << 26) ? "PkgPwrL1, " : "",
1717 (msr & 1 << 27) ? "PkgPwrL2, " : "",
1718 (msr & 1 << 28) ? "MultiCoreTurbo, " : "",
1719 (msr & 1 << 29) ? "Transitions, " : "",
1720 (msr & 1 << 30) ? "bit30, " : "",
1721 (msr & 1 << 31) ? "bit31, " : "");
1724 if (do_gfx_perf_limit_reasons) {
1725 get_msr(cpu, MSR_GFX_PERF_LIMIT_REASONS, &msr);
1726 fprintf(stderr, "cpu%d: MSR_GFX_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
1727 fprintf(stderr, " (Active: %s%s%s%s%s%s%s%s)",
1728 (msr & 1 << 0) ? "PROCHOT, " : "",
1729 (msr & 1 << 1) ? "ThermStatus, " : "",
1730 (msr & 1 << 4) ? "Graphics, " : "",
1731 (msr & 1 << 6) ? "VR-Therm, " : "",
1732 (msr & 1 << 8) ? "Amps, " : "",
1733 (msr & 1 << 9) ? "GFXPwr, " : "",
1734 (msr & 1 << 10) ? "PkgPwrL1, " : "",
1735 (msr & 1 << 11) ? "PkgPwrL2, " : "");
1736 fprintf(stderr, " (Logged: %s%s%s%s%s%s%s%s)\n",
1737 (msr & 1 << 16) ? "PROCHOT, " : "",
1738 (msr & 1 << 17) ? "ThermStatus, " : "",
1739 (msr & 1 << 20) ? "Graphics, " : "",
1740 (msr & 1 << 22) ? "VR-Therm, " : "",
1741 (msr & 1 << 24) ? "Amps, " : "",
1742 (msr & 1 << 25) ? "GFXPwr, " : "",
1743 (msr & 1 << 26) ? "PkgPwrL1, " : "",
1744 (msr & 1 << 27) ? "PkgPwrL2, " : "");
1746 if (do_ring_perf_limit_reasons) {
1747 get_msr(cpu, MSR_RING_PERF_LIMIT_REASONS, &msr);
1748 fprintf(stderr, "cpu%d: MSR_RING_PERF_LIMIT_REASONS, 0x%08llx", cpu, msr);
1749 fprintf(stderr, " (Active: %s%s%s%s%s%s)",
1750 (msr & 1 << 0) ? "PROCHOT, " : "",
1751 (msr & 1 << 1) ? "ThermStatus, " : "",
1752 (msr & 1 << 6) ? "VR-Therm, " : "",
1753 (msr & 1 << 8) ? "Amps, " : "",
1754 (msr & 1 << 10) ? "PkgPwrL1, " : "",
1755 (msr & 1 << 11) ? "PkgPwrL2, " : "");
1756 fprintf(stderr, " (Logged: %s%s%s%s%s%s)\n",
1757 (msr & 1 << 16) ? "PROCHOT, " : "",
1758 (msr & 1 << 17) ? "ThermStatus, " : "",
1759 (msr & 1 << 22) ? "VR-Therm, " : "",
1760 (msr & 1 << 24) ? "Amps, " : "",
1761 (msr & 1 << 26) ? "PkgPwrL1, " : "",
1762 (msr & 1 << 27) ? "PkgPwrL2, " : "");
1767 #define RAPL_POWER_GRANULARITY 0x7FFF /* 15 bit power granularity */
1768 #define RAPL_TIME_GRANULARITY 0x3F /* 6 bit time granularity */
1770 double get_tdp(model)
1772 unsigned long long msr;
1774 if (do_rapl & RAPL_PKG_POWER_INFO)
1775 if (!get_msr(0, MSR_PKG_POWER_INFO, &msr))
1776 return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
1791 * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
1793 void rapl_probe(unsigned int family, unsigned int model)
1795 unsigned long long msr;
1796 unsigned int time_unit;
1808 case 0x3C: /* HSW */
1809 case 0x45: /* HSW */
1810 case 0x46: /* HSW */
1811 case 0x3D: /* BDW */
1812 case 0x47: /* BDW */
1813 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
1815 case 0x3F: /* HSX */
1816 case 0x4F: /* BDX */
1817 case 0x56: /* BDX-DE */
1818 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
1822 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO;
1824 case 0x37: /* BYT */
1825 case 0x4D: /* AVN */
1826 do_rapl = RAPL_PKG | RAPL_CORES ;
1832 /* units on package 0, verify later other packages match */
1833 if (get_msr(0, MSR_RAPL_POWER_UNIT, &msr))
1836 rapl_power_units = 1.0 / (1 << (msr & 0xF));
1838 rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
1840 rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
1842 time_unit = msr >> 16 & 0xF;
1846 rapl_time_units = 1.0 / (1 << (time_unit));
1848 tdp = get_tdp(model);
1850 rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
1852 fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
1857 void perf_limit_reasons_probe(family, model)
1866 case 0x3C: /* HSW */
1867 case 0x45: /* HSW */
1868 case 0x46: /* HSW */
1869 do_gfx_perf_limit_reasons = 1;
1870 case 0x3F: /* HSX */
1871 do_core_perf_limit_reasons = 1;
1872 do_ring_perf_limit_reasons = 1;
1878 int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1880 unsigned long long msr;
1884 if (!(do_dts || do_ptm))
1889 /* DTS is per-core, no need to print for each thread */
1890 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
1893 if (cpu_migrate(cpu)) {
1894 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1898 if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
1899 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
1902 dts = (msr >> 16) & 0x7F;
1903 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n",
1904 cpu, msr, tcc_activation_temp - dts);
1907 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr))
1910 dts = (msr >> 16) & 0x7F;
1911 dts2 = (msr >> 8) & 0x7F;
1912 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
1913 cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
1919 unsigned int resolution;
1921 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
1924 dts = (msr >> 16) & 0x7F;
1925 resolution = (msr >> 27) & 0xF;
1926 fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n",
1927 cpu, msr, tcc_activation_temp - dts, resolution);
1930 if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr))
1933 dts = (msr >> 16) & 0x7F;
1934 dts2 = (msr >> 8) & 0x7F;
1935 fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
1936 cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
1943 void print_power_limit_msr(int cpu, unsigned long long msr, char *label)
1945 fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n",
1947 ((msr >> 15) & 1) ? "EN" : "DIS",
1948 ((msr >> 0) & 0x7FFF) * rapl_power_units,
1949 (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units,
1950 (((msr >> 16) & 1) ? "EN" : "DIS"));
1955 int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1957 unsigned long long msr;
1963 /* RAPL counters are per package, so print only for 1st thread/package */
1964 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1968 if (cpu_migrate(cpu)) {
1969 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1973 if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
1977 fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
1978 "(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
1979 rapl_power_units, rapl_energy_units, rapl_time_units);
1981 if (do_rapl & RAPL_PKG_POWER_INFO) {
1983 if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
1987 fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
1989 ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
1990 ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
1991 ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
1992 ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
1995 if (do_rapl & RAPL_PKG) {
1997 if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
2000 fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n",
2001 cpu, msr, (msr >> 63) & 1 ? "": "UN");
2003 print_power_limit_msr(cpu, msr, "PKG Limit #1");
2004 fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n",
2006 ((msr >> 47) & 1) ? "EN" : "DIS",
2007 ((msr >> 32) & 0x7FFF) * rapl_power_units,
2008 (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units,
2009 ((msr >> 48) & 1) ? "EN" : "DIS");
2012 if (do_rapl & RAPL_DRAM) {
2013 if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr))
2017 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
2019 ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2020 ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2021 ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
2022 ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
2025 if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr))
2027 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n",
2028 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2030 print_power_limit_msr(cpu, msr, "DRAM Limit");
2032 if (do_rapl & RAPL_CORE_POLICY) {
2034 if (get_msr(cpu, MSR_PP0_POLICY, &msr))
2037 fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
2040 if (do_rapl & RAPL_CORES) {
2043 if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
2045 fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n",
2046 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2047 print_power_limit_msr(cpu, msr, "Cores Limit");
2050 if (do_rapl & RAPL_GFX) {
2052 if (get_msr(cpu, MSR_PP1_POLICY, &msr))
2055 fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF);
2057 if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr))
2059 fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n",
2060 cpu, msr, (msr >> 31) & 1 ? "": "UN");
2061 print_power_limit_msr(cpu, msr, "GFX Limit");
2068 * SNB adds support for additional MSRs:
2070 * MSR_PKG_C7_RESIDENCY 0x000003fa
2071 * MSR_CORE_C7_RESIDENCY 0x000003fe
2072 * MSR_PKG_C2_RESIDENCY 0x0000060d
2075 int has_snb_msrs(unsigned int family, unsigned int model)
2083 case 0x3A: /* IVB */
2084 case 0x3E: /* IVB Xeon */
2085 case 0x3C: /* HSW */
2086 case 0x3F: /* HSW */
2087 case 0x45: /* HSW */
2088 case 0x46: /* HSW */
2089 case 0x3D: /* BDW */
2090 case 0x47: /* BDW */
2091 case 0x4F: /* BDX */
2092 case 0x56: /* BDX-DE */
2099 * HSW adds support for additional MSRs:
2101 * MSR_PKG_C8_RESIDENCY 0x00000630
2102 * MSR_PKG_C9_RESIDENCY 0x00000631
2103 * MSR_PKG_C10_RESIDENCY 0x00000632
2105 int has_hsw_msrs(unsigned int family, unsigned int model)
2111 case 0x45: /* HSW */
2112 case 0x3D: /* BDW */
2119 int is_slm(unsigned int family, unsigned int model)
2124 case 0x37: /* BYT */
2125 case 0x4D: /* AVN */
2131 #define SLM_BCLK_FREQS 5
2132 double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
2134 double slm_bclk(void)
2136 unsigned long long msr = 3;
2140 if (get_msr(0, MSR_FSB_FREQ, &msr))
2141 fprintf(stderr, "SLM BCLK: unknown\n");
2144 if (i >= SLM_BCLK_FREQS) {
2145 fprintf(stderr, "SLM BCLK[%d] invalid\n", i);
2148 freq = slm_freq_table[i];
2150 fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq);
2155 double discover_bclk(unsigned int family, unsigned int model)
2157 if (has_snb_msrs(family, model))
2159 else if (is_slm(family, model))
2166 * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where
2167 * the Thermal Control Circuit (TCC) activates.
2168 * This is usually equal to tjMax.
2170 * Older processors do not have this MSR, so there we guess,
2171 * but also allow cmdline over-ride with -T.
2173 * Several MSR temperature values are in units of degrees-C
2174 * below this value, including the Digital Thermal Sensor (DTS),
2175 * Package Thermal Management Sensor (PTM), and thermal event thresholds.
2177 int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
2179 unsigned long long msr;
2180 unsigned int target_c_local;
2183 /* tcc_activation_temp is used only for dts or ptm */
2184 if (!(do_dts || do_ptm))
2187 /* this is a per-package concept */
2188 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
2192 if (cpu_migrate(cpu)) {
2193 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
2197 if (tcc_activation_temp_override != 0) {
2198 tcc_activation_temp = tcc_activation_temp_override;
2199 fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n",
2200 cpu, tcc_activation_temp);
2204 /* Temperature Target MSR is Nehalem and newer only */
2205 if (!do_nhm_platform_info)
2208 if (get_msr(0, MSR_IA32_TEMPERATURE_TARGET, &msr))
2211 target_c_local = (msr >> 16) & 0xFF;
2214 fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
2215 cpu, msr, target_c_local);
2217 if (!target_c_local)
2220 tcc_activation_temp = target_c_local;
2225 tcc_activation_temp = TJMAX_DEFAULT;
2226 fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n",
2227 cpu, tcc_activation_temp);
2233 unsigned int eax, ebx, ecx, edx, max_level;
2234 unsigned int fms, family, model, stepping;
2236 eax = ebx = ecx = edx = 0;
2238 __get_cpuid(0, &max_level, &ebx, &ecx, &edx);
2240 if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
2244 fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ",
2245 (char *)&ebx, (char *)&edx, (char *)&ecx);
2247 __get_cpuid(1, &fms, &ebx, &ecx, &edx);
2248 family = (fms >> 8) & 0xf;
2249 model = (fms >> 4) & 0xf;
2250 stepping = fms & 0xf;
2251 if (family == 6 || family == 0xf)
2252 model += ((fms >> 16) & 0xf) << 4;
2255 fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
2256 max_level, family, model, stepping, family, model, stepping);
2258 if (!(edx & (1 << 5)))
2259 errx(1, "CPUID: no MSR");
2262 * check max extended function levels of CPUID.
2263 * This is needed to check for invariant TSC.
2264 * This check is valid for both Intel and AMD.
2266 ebx = ecx = edx = 0;
2267 __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
2269 if (max_level >= 0x80000007) {
2272 * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
2273 * this check is valid for both Intel and AMD
2275 __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
2276 has_invariant_tsc = edx & (1 << 8);
2280 * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0
2281 * this check is valid for both Intel and AMD
2284 __get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
2285 has_aperf = ecx & (1 << 0);
2286 do_dts = eax & (1 << 0);
2287 do_ptm = eax & (1 << 6);
2288 has_epb = ecx & (1 << 3);
2291 fprintf(stderr, "CPUID(6): %sAPERF, %sDTS, %sPTM, %sEPB\n",
2292 has_aperf ? "" : "No ",
2293 do_dts ? "" : "No ",
2294 do_ptm ? "" : "No ",
2295 has_epb ? "" : "No ");
2297 do_nhm_platform_info = do_nhm_cstates = do_smi = probe_nhm_msrs(family, model);
2298 do_snb_cstates = has_snb_msrs(family, model);
2299 do_pc2 = do_snb_cstates && (pkg_cstate_limit >= PCL__2);
2300 do_pc3 = (pkg_cstate_limit >= PCL__3);
2301 do_pc6 = (pkg_cstate_limit >= PCL__6);
2302 do_pc7 = do_snb_cstates && (pkg_cstate_limit >= PCL__7);
2303 do_c8_c9_c10 = has_hsw_msrs(family, model);
2304 do_slm_cstates = is_slm(family, model);
2305 bclk = discover_bclk(family, model);
2307 do_nhm_turbo_ratio_limit = do_nhm_platform_info && has_nhm_turbo_ratio_limit(family, model);
2308 do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model);
2309 rapl_probe(family, model);
2310 perf_limit_reasons_probe(family, model);
2319 "Usage: turbostat [OPTIONS][(--interval seconds) | COMMAND ...]\n"
2321 "Turbostat forks the specified COMMAND and prints statistics\n"
2322 "when COMMAND completes.\n"
2323 "If no COMMAND is specified, turbostat wakes every 5-seconds\n"
2324 "to print statistics, until interrupted.\n"
2325 "--debug run in \"debug\" mode\n"
2326 "--interval sec Override default 5-second measurement interval\n"
2327 "--help print this help message\n"
2328 "--counter msr print 32-bit counter at address \"msr\"\n"
2329 "--Counter msr print 64-bit Counter at address \"msr\"\n"
2330 "--msr msr print 32-bit value at address \"msr\"\n"
2331 "--MSR msr print 64-bit Value at address \"msr\"\n"
2332 "--version print version information\n"
2334 "For more help, run \"man turbostat\"\n");
2339 * in /dev/cpu/ return success for names that are numbers
2340 * ie. filter out ".", "..", "microcode".
2342 int dir_filter(const struct dirent *dirp)
2344 if (isdigit(dirp->d_name[0]))
2350 int open_dev_cpu_msr(int dummy1)
2355 void topology_probe()
2358 int max_core_id = 0;
2359 int max_package_id = 0;
2360 int max_siblings = 0;
2361 struct cpu_topology {
2363 int physical_package_id;
2366 /* Initialize num_cpus, max_cpu_num */
2368 topo.max_cpu_num = 0;
2369 for_all_proc_cpus(count_cpus);
2370 if (!summary_only && topo.num_cpus > 1)
2374 fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num);
2376 cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology));
2378 err(1, "calloc cpus");
2381 * Allocate and initialize cpu_present_set
2383 cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1));
2384 if (cpu_present_set == NULL)
2385 err(3, "CPU_ALLOC");
2386 cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2387 CPU_ZERO_S(cpu_present_setsize, cpu_present_set);
2388 for_all_proc_cpus(mark_cpu_present);
2391 * Allocate and initialize cpu_affinity_set
2393 cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
2394 if (cpu_affinity_set == NULL)
2395 err(3, "CPU_ALLOC");
2396 cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2397 CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
2402 * find max_core_id, max_package_id
2404 for (i = 0; i <= topo.max_cpu_num; ++i) {
2407 if (cpu_is_not_present(i)) {
2409 fprintf(stderr, "cpu%d NOT PRESENT\n", i);
2412 cpus[i].core_id = get_core_id(i);
2413 if (cpus[i].core_id > max_core_id)
2414 max_core_id = cpus[i].core_id;
2416 cpus[i].physical_package_id = get_physical_package_id(i);
2417 if (cpus[i].physical_package_id > max_package_id)
2418 max_package_id = cpus[i].physical_package_id;
2420 siblings = get_num_ht_siblings(i);
2421 if (siblings > max_siblings)
2422 max_siblings = siblings;
2424 fprintf(stderr, "cpu %d pkg %d core %d\n",
2425 i, cpus[i].physical_package_id, cpus[i].core_id);
2427 topo.num_cores_per_pkg = max_core_id + 1;
2429 fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n",
2430 max_core_id, topo.num_cores_per_pkg);
2431 if (!summary_only && topo.num_cores_per_pkg > 1)
2434 topo.num_packages = max_package_id + 1;
2436 fprintf(stderr, "max_package_id %d, sizing for %d packages\n",
2437 max_package_id, topo.num_packages);
2438 if (!summary_only && topo.num_packages > 1)
2441 topo.num_threads_per_core = max_siblings;
2443 fprintf(stderr, "max_siblings %d\n", max_siblings);
2449 allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p)
2453 *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg *
2454 topo.num_packages, sizeof(struct thread_data));
2458 for (i = 0; i < topo.num_threads_per_core *
2459 topo.num_cores_per_pkg * topo.num_packages; i++)
2460 (*t)[i].cpu_id = -1;
2462 *c = calloc(topo.num_cores_per_pkg * topo.num_packages,
2463 sizeof(struct core_data));
2467 for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++)
2468 (*c)[i].core_id = -1;
2470 *p = calloc(topo.num_packages, sizeof(struct pkg_data));
2474 for (i = 0; i < topo.num_packages; i++)
2475 (*p)[i].package_id = i;
2479 err(1, "calloc counters");
2484 * set cpu_id, core_num, pkg_num
2485 * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE
2487 * increment topo.num_cores when 1st core in pkg seen
2489 void init_counter(struct thread_data *thread_base, struct core_data *core_base,
2490 struct pkg_data *pkg_base, int thread_num, int core_num,
2491 int pkg_num, int cpu_id)
2493 struct thread_data *t;
2494 struct core_data *c;
2497 t = GET_THREAD(thread_base, thread_num, core_num, pkg_num);
2498 c = GET_CORE(core_base, core_num, pkg_num);
2499 p = GET_PKG(pkg_base, pkg_num);
2502 if (thread_num == 0) {
2503 t->flags |= CPU_IS_FIRST_THREAD_IN_CORE;
2504 if (cpu_is_first_core_in_package(cpu_id))
2505 t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE;
2508 c->core_id = core_num;
2509 p->package_id = pkg_num;
2513 int initialize_counters(int cpu_id)
2515 int my_thread_id, my_core_id, my_package_id;
2517 my_package_id = get_physical_package_id(cpu_id);
2518 my_core_id = get_core_id(cpu_id);
2520 if (cpu_is_first_sibling_in_core(cpu_id)) {
2527 init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2528 init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2532 void allocate_output_buffer()
2534 output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
2535 outp = output_buffer;
2537 err(-1, "calloc output buffer");
2540 void setup_all_buffers(void)
2543 allocate_counters(&thread_even, &core_even, &package_even);
2544 allocate_counters(&thread_odd, &core_odd, &package_odd);
2545 allocate_output_buffer();
2546 for_all_proc_cpus(initialize_counters);
2549 void turbostat_init()
2552 check_permissions();
2555 setup_all_buffers();
2558 print_verbose_header();
2561 for_all_cpus(print_epb, ODD_COUNTERS);
2564 for_all_cpus(print_perf_limit, ODD_COUNTERS);
2567 for_all_cpus(print_rapl, ODD_COUNTERS);
2569 for_all_cpus(set_temperature_target, ODD_COUNTERS);
2572 for_all_cpus(print_thermal, ODD_COUNTERS);
2575 int fork_it(char **argv)
2580 status = for_all_cpus(get_counters, EVEN_COUNTERS);
2583 /* clear affinity side-effect of get_counters() */
2584 sched_setaffinity(0, cpu_present_setsize, cpu_present_set);
2585 gettimeofday(&tv_even, (struct timezone *)NULL);
2590 execvp(argv[0], argv);
2594 if (child_pid == -1)
2597 signal(SIGINT, SIG_IGN);
2598 signal(SIGQUIT, SIG_IGN);
2599 if (waitpid(child_pid, &status, 0) == -1)
2600 err(status, "waitpid");
2603 * n.b. fork_it() does not check for errors from for_all_cpus()
2604 * because re-starting is problematic when forking
2606 for_all_cpus(get_counters, ODD_COUNTERS);
2607 gettimeofday(&tv_odd, (struct timezone *)NULL);
2608 timersub(&tv_odd, &tv_even, &tv_delta);
2609 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
2610 compute_average(EVEN_COUNTERS);
2611 format_all_counters(EVEN_COUNTERS);
2614 fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
2619 int get_and_dump_counters(void)
2623 status = for_all_cpus(get_counters, ODD_COUNTERS);
2627 status = for_all_cpus(dump_counters, ODD_COUNTERS);
2636 void print_version() {
2637 fprintf(stderr, "turbostat version 4.1 10-Feb, 2015"
2638 " - Len Brown <lenb@kernel.org>\n");
2641 void cmdline(int argc, char **argv)
2644 int option_index = 0;
2645 static struct option long_options[] = {
2646 {"Counter", required_argument, 0, 'C'},
2647 {"counter", required_argument, 0, 'c'},
2648 {"Dump", no_argument, 0, 'D'},
2649 {"debug", no_argument, 0, 'd'},
2650 {"interval", required_argument, 0, 'i'},
2651 {"help", no_argument, 0, 'h'},
2652 {"Joules", no_argument, 0, 'J'},
2653 {"MSR", required_argument, 0, 'M'},
2654 {"msr", required_argument, 0, 'm'},
2655 {"Package", no_argument, 0, 'p'},
2656 {"processor", no_argument, 0, 'p'},
2657 {"Summary", no_argument, 0, 'S'},
2658 {"TCC", required_argument, 0, 'T'},
2659 {"version", no_argument, 0, 'v' },
2665 while ((opt = getopt_long_only(argc, argv, "C:c:Ddhi:JM:m:PpST:v",
2666 long_options, &option_index)) != -1) {
2669 sscanf(optarg, "%x", &extra_delta_offset64);
2672 sscanf(optarg, "%x", &extra_delta_offset32);
2685 interval_sec = atoi(optarg);
2691 sscanf(optarg, "%x", &extra_msr_offset64);
2694 sscanf(optarg, "%x", &extra_msr_offset32);
2706 tcc_activation_temp_override = atoi(optarg);
2716 int main(int argc, char **argv)
2718 cmdline(argc, argv);
2725 /* dump counters and exit */
2727 return get_and_dump_counters();
2730 * if any params left, it must be a command to fork
2733 return fork_it(argv + optind);