2 * turbostat -- Log CPU frequency and C-state residency
3 * on modern Intel turbo-capable processors for collectd.
5 * Based on the 'turbostat' tool of the Linux kernel, found at
6 * linux/tools/power/x86/turbostat/turbostat.c:
8 * Copyright (c) 2013 Intel Corporation.
9 * Len Brown <len.brown@intel.com>
11 * This program is free software; you can redistribute it and/or modify it
12 * under the terms and conditions of the GNU General Public License,
13 * version 2, as published by the Free Software Foundation.
15 * This program is distributed in the hope it will be useful, but WITHOUT
16 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
20 * You should have received a copy of the GNU General Public License along with
21 * this program; if not, write to the Free Software Foundation, Inc.,
22 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
24 * Ported to collectd by Vincent Brillault <git@lerya.net>
28 * _GNU_SOURCE is required because of the following functions:
38 #include <asm/msr-index.h>
43 #include <sys/types.h>
46 #include <sys/resource.h>
61 #define PLUGIN_NAME "turbostat"
64 * If set, aperf_mperf_unstable disables a/mperf based stats.
65 * This includes: C0 & C1 states, frequency
67 * This value is automatically set if mperf or aperf decreases
69 static _Bool aperf_mperf_unstable;
71 static unsigned int do_core_cstate;
72 static unsigned int do_pkg_cstate;
75 static unsigned int tcc_activation_temp;
77 static unsigned int do_rapl;
78 static double rapl_energy_units;
80 #define RAPL_PKG (1 << 0)
81 /* 0x610 MSR_PKG_POWER_LIMIT */
82 /* 0x611 MSR_PKG_ENERGY_STATUS */
83 #define RAPL_PKG_PERF_STATUS (1 << 1)
84 /* 0x613 MSR_PKG_PERF_STATUS */
85 #define RAPL_PKG_POWER_INFO (1 << 2)
86 /* 0x614 MSR_PKG_POWER_INFO */
88 #define RAPL_DRAM (1 << 3)
89 /* 0x618 MSR_DRAM_POWER_LIMIT */
90 /* 0x619 MSR_DRAM_ENERGY_STATUS */
91 /* 0x61c MSR_DRAM_POWER_INFO */
92 #define RAPL_DRAM_PERF_STATUS (1 << 4)
93 /* 0x61b MSR_DRAM_PERF_STATUS */
95 #define RAPL_CORES (1 << 5)
96 /* 0x638 MSR_PP0_POWER_LIMIT */
97 /* 0x639 MSR_PP0_ENERGY_STATUS */
98 #define RAPL_CORE_POLICY (1 << 6)
99 /* 0x63a MSR_PP0_POLICY */
102 #define RAPL_GFX (1 << 7)
103 /* 0x640 MSR_PP1_POWER_LIMIT */
104 /* 0x641 MSR_PP1_ENERGY_STATUS */
105 /* 0x642 MSR_PP1_POLICY */
106 #define TJMAX_DEFAULT 100
108 cpu_set_t *cpu_present_set, *cpu_affinity_set, *cpu_saved_affinity_set;
109 size_t cpu_present_setsize, cpu_affinity_setsize, cpu_saved_affinity_setsize;
112 unsigned long long tsc;
113 unsigned long long aperf;
114 unsigned long long mperf;
115 unsigned long long c1;
116 unsigned int smi_count;
119 #define CPU_IS_FIRST_THREAD_IN_CORE 0x2
120 #define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4
121 } *thread_even, *thread_odd;
124 unsigned long long c3;
125 unsigned long long c6;
126 unsigned long long c7;
127 unsigned int core_temp_c;
128 unsigned int core_id;
129 } *core_even, *core_odd;
132 unsigned long long pc2;
133 unsigned long long pc3;
134 unsigned long long pc6;
135 unsigned long long pc7;
136 unsigned long long pc8;
137 unsigned long long pc9;
138 unsigned long long pc10;
139 unsigned int package_id;
140 unsigned int energy_pkg; /* MSR_PKG_ENERGY_STATUS */
141 unsigned int energy_dram; /* MSR_DRAM_ENERGY_STATUS */
142 unsigned int energy_cores; /* MSR_PP0_ENERGY_STATUS */
143 unsigned int energy_gfx; /* MSR_PP1_ENERGY_STATUS */
144 unsigned int rapl_pkg_perf_status; /* MSR_PKG_PERF_STATUS */
145 unsigned int rapl_dram_perf_status; /* MSR_DRAM_PERF_STATUS */
146 unsigned int tcc_activation_temp;
147 unsigned int pkg_temp_c;
148 } *package_even, *package_odd;
150 #define ODD_COUNTERS thread_odd, core_odd, package_odd
151 #define EVEN_COUNTERS thread_even, core_even, package_even
152 static _Bool is_even = 1;
154 static _Bool allocated = 0;
155 static _Bool initialized = 0;
157 #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \
158 (thread_base + (pkg_no) * topo.num_cores_per_pkg * \
159 topo.num_threads_per_core + \
160 (core_no) * topo.num_threads_per_core + (thread_no))
161 #define GET_CORE(core_base, core_no, pkg_no) \
162 (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no))
163 #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no)
170 int num_cores_per_pkg;
171 int num_threads_per_core;
174 struct timeval tv_even, tv_odd, tv_delta;
179 ERR_CPU_SAVE_SCHED_AFFINITY,
183 ERR_MSR_CORE_C3_RESIDENCY,
184 ERR_MSR_CORE_C6_RESIDENCY,
185 ERR_MSR_CORE_C7_RESIDENCY,
186 ERR_MSR_IA32_THERM_STATUS,
187 ERR_MSR_PKG_C3_RESIDENCY,
188 ERR_MSR_PKG_C6_RESIDENCY,
189 ERR_MSR_PKG_C2_RESIDENCY,
190 ERR_MSR_PKG_C7_RESIDENCY,
191 ERR_MSR_PKG_C8_RESIDENCY,
192 ERR_MSR_PKG_C9_RESIDENCY,
193 ERR_MSR_PKG_C10_RESIDENCY,
194 ERR_MSR_PKG_ENERGY_STATUS,
195 ERR_MSR_PKG_POWER_INFO,
196 ERR_MSR_PP0_ENERGY_STATUS,
197 ERR_MSR_DRAM_ENERGY_STATUS,
198 ERR_MSR_PP1_ENERGY_STATUS,
199 ERR_MSR_PKG_PERF_STATUS,
200 ERR_MSR_DRAM_PERF_STATUS,
201 ERR_MSR_IA32_PACKAGE_THERM_STATUS,
207 ERR_CANT_READ_NUMBER,
208 ERR_CANT_READ_PROC_STAT,
209 ERR_NO_INVARIANT_TSC,
217 static int setup_all_buffers(void);
220 cpu_is_not_present(int cpu)
222 return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
225 * run func(thread, core, package) in topology order
226 * skip non-present cpus
229 static int __attribute__((warn_unused_result))
230 for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
231 struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
233 int retval, pkg_no, core_no, thread_no;
235 for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
236 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
237 for (thread_no = 0; thread_no <
238 topo.num_threads_per_core; ++thread_no) {
239 struct thread_data *t;
243 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
245 if (cpu_is_not_present(t->cpu_id))
248 c = GET_CORE(core_base, core_no, pkg_no);
249 p = GET_PKG(pkg_base, pkg_no);
251 retval = func(t, c, p);
260 static int __attribute__((warn_unused_result))
261 open_msr(int cpu, _Bool multiple_read)
267 * If we need to do multiple read, let's migrate to the CPU
268 * Otherwise, we would lose time calling functions on another CPU
270 * If we are not yet initialized (cpu_affinity_setsize = 0),
271 * we need to skip this optimisation.
273 if (multiple_read && cpu_affinity_setsize) {
274 CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
275 CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
276 if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1) {
277 ERROR("Could not migrate to CPU %d", cpu);
278 return -ERR_CPU_MIGRATE;
282 ssnprintf(pathname, sizeof(pathname), "/dev/cpu/%d/msr", cpu);
283 fd = open(pathname, O_RDONLY);
285 return -ERR_CANT_OPEN_MSR;
289 static int __attribute__((warn_unused_result))
290 read_msr(int fd, off_t offset, unsigned long long *msr)
294 retval = pread(fd, msr, sizeof *msr, offset);
296 if (retval != sizeof *msr) {
297 ERROR("MSR offset 0x%llx read failed", (unsigned long long)offset);
303 static int __attribute__((warn_unused_result))
304 get_msr(int cpu, off_t offset, unsigned long long *msr)
309 fd = open_msr(cpu, 0);
312 retval = read_msr(fd, offset, msr);
317 #define DELTA_WRAP32(new, old) \
321 old = 0x100000000 + new - old; \
325 delta_package(struct pkg_data *new, struct pkg_data *old)
327 old->pc2 = new->pc2 - old->pc2;
328 old->pc3 = new->pc3 - old->pc3;
329 old->pc6 = new->pc6 - old->pc6;
330 old->pc7 = new->pc7 - old->pc7;
331 old->pc8 = new->pc8 - old->pc8;
332 old->pc9 = new->pc9 - old->pc9;
333 old->pc10 = new->pc10 - old->pc10;
334 old->pkg_temp_c = new->pkg_temp_c;
336 DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
337 DELTA_WRAP32(new->energy_cores, old->energy_cores);
338 DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
339 DELTA_WRAP32(new->energy_dram, old->energy_dram);
340 DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
341 DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
345 delta_core(struct core_data *new, struct core_data *old)
347 old->c3 = new->c3 - old->c3;
348 old->c6 = new->c6 - old->c6;
349 old->c7 = new->c7 - old->c7;
350 old->core_temp_c = new->core_temp_c;
356 static int __attribute__((warn_unused_result))
357 delta_thread(struct thread_data *new, struct thread_data *old,
358 struct core_data *core_delta)
360 old->tsc = new->tsc - old->tsc;
362 /* check for TSC < 1 Mcycles over interval */
363 if (old->tsc < (1000 * 1000)) {
364 WARNING("Insanely slow TSC rate, TSC stops in idle? ");
365 WARNING("You can disable all c-states by booting with \"idle=poll\" ");
366 WARNING("or just the deep ones with \"processor.max_cstate=1\"");
370 old->c1 = new->c1 - old->c1;
372 if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
373 old->aperf = new->aperf - old->aperf;
374 old->mperf = new->mperf - old->mperf;
376 if (!aperf_mperf_unstable) {
377 WARNING(" APERF or MPERF went backwards * ");
378 WARNING("* Frequency results do not cover entire interval *");
379 WARNING("* fix this by running Linux-2.6.30 or later *");
381 aperf_mperf_unstable = 1;
387 * As counter collection is not atomic,
388 * it is possible for mperf's non-halted cycles + idle states
389 * to exceed TSC's all cycles: show c1 = 0% in that case.
391 if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
394 /* normal case, derive c1 */
395 old->c1 = old->tsc - old->mperf - core_delta->c3
396 - core_delta->c6 - core_delta->c7;
399 if (old->mperf == 0) {
400 WARNING("cpu%d MPERF 0!", old->cpu_id);
401 old->mperf = 1; /* divide by 0 protection */
404 old->smi_count = new->smi_count - old->smi_count;
409 static int __attribute__((warn_unused_result))
410 delta_cpu(struct thread_data *t, struct core_data *c,
411 struct pkg_data *p, struct thread_data *t2,
412 struct core_data *c2, struct pkg_data *p2)
416 /* calculate core delta only for 1st thread in core */
417 if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
420 /* always calculate thread delta */
421 ret = delta_thread(t, t2, c2); /* c2 is core delta */
425 /* calculate package delta only for 1st core in package */
426 if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
427 delta_package(p, p2);
435 * acquire and record local counters for that cpu
437 static int __attribute__((warn_unused_result))
438 get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
441 unsigned long long msr;
445 msr_fd = open_msr(cpu, 1);
449 #define READ_MSR(msr, dst) \
451 if (read_msr(msr_fd, msr, dst)) { \
452 retval = -ERR_##msr; \
457 READ_MSR(MSR_IA32_TSC, &t->tsc);
459 READ_MSR(MSR_IA32_APERF, &t->aperf);
460 READ_MSR(MSR_IA32_MPERF, &t->mperf);
462 READ_MSR(MSR_SMI_COUNT, &msr);
463 t->smi_count = msr & 0xFFFFFFFF;
465 /* collect core counters only for 1st thread in core */
466 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) {
471 if (do_core_cstate & (1 << 3))
472 READ_MSR(MSR_CORE_C3_RESIDENCY, &c->c3);
473 if (do_core_cstate & (1 << 6))
474 READ_MSR(MSR_CORE_C6_RESIDENCY, &c->c6);
475 if (do_core_cstate & (1 << 7))
476 READ_MSR(MSR_CORE_C7_RESIDENCY, &c->c7);
479 READ_MSR(MSR_IA32_THERM_STATUS, &msr);
480 c->core_temp_c = p->tcc_activation_temp - ((msr >> 16) & 0x7F);
483 /* collect package counters only for 1st core in package */
484 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
489 if (do_pkg_cstate & (1 << 2))
490 READ_MSR(MSR_PKG_C2_RESIDENCY, &p->pc2);
491 if (do_pkg_cstate & (1 << 3))
492 READ_MSR(MSR_PKG_C3_RESIDENCY, &p->pc3);
493 if (do_pkg_cstate & (1 << 6))
494 READ_MSR(MSR_PKG_C6_RESIDENCY, &p->pc6);
495 if (do_pkg_cstate & (1 << 7))
496 READ_MSR(MSR_PKG_C7_RESIDENCY, &p->pc7);
497 if (do_pkg_cstate & (1 << 8))
498 READ_MSR(MSR_PKG_C8_RESIDENCY, &p->pc8);
499 if (do_pkg_cstate & (1 << 9))
500 READ_MSR(MSR_PKG_C9_RESIDENCY, &p->pc9);
501 if (do_pkg_cstate & (1 << 10))
502 READ_MSR(MSR_PKG_C10_RESIDENCY, &p->pc10);
504 if (do_rapl & RAPL_PKG) {
505 READ_MSR(MSR_PKG_ENERGY_STATUS, &msr);
506 p->energy_pkg = msr & 0xFFFFFFFF;
508 if (do_rapl & RAPL_CORES) {
509 READ_MSR(MSR_PP0_ENERGY_STATUS, &msr);
510 p->energy_cores = msr & 0xFFFFFFFF;
512 if (do_rapl & RAPL_DRAM) {
513 READ_MSR(MSR_DRAM_ENERGY_STATUS, &msr);
514 p->energy_dram = msr & 0xFFFFFFFF;
516 if (do_rapl & RAPL_GFX) {
517 READ_MSR(MSR_PP1_ENERGY_STATUS, &msr);
518 p->energy_gfx = msr & 0xFFFFFFFF;
520 if (do_rapl & RAPL_PKG_PERF_STATUS) {
521 READ_MSR(MSR_PKG_PERF_STATUS, &msr);
522 p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
524 if (do_rapl & RAPL_DRAM_PERF_STATUS) {
525 READ_MSR(MSR_DRAM_PERF_STATUS, &msr);
526 p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
529 READ_MSR(MSR_IA32_PACKAGE_THERM_STATUS, &msr);
530 p->pkg_temp_c = p->tcc_activation_temp - ((msr >> 16) & 0x7F);
539 free_all_buffers(void)
544 CPU_FREE(cpu_present_set);
545 cpu_present_set = NULL;
548 CPU_FREE(cpu_affinity_set);
549 cpu_affinity_set = NULL;
550 cpu_affinity_setsize = 0;
552 CPU_FREE(cpu_saved_affinity_set);
553 cpu_saved_affinity_set = NULL;
554 cpu_saved_affinity_setsize = 0;
574 * Parse a file containing a single int.
576 static int __attribute__ ((format(printf,1,2)))
577 parse_int_file(const char *fmt, ...)
585 vsnprintf(path, sizeof(path), fmt, args);
587 filep = fopen(path, "r");
589 ERROR("%s: open failed", path);
590 return -ERR_CANT_OPEN_FILE;
592 if (fscanf(filep, "%d", &value) != 1) {
593 ERROR("%s: failed to parse number from file", path);
594 return -ERR_CANT_READ_NUMBER;
601 * cpu_is_first_sibling_in_core(cpu)
602 * return 1 if given CPU is 1st HT sibling in the core
605 cpu_is_first_sibling_in_core(int cpu)
607 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
611 * cpu_is_first_core_in_package(cpu)
612 * return 1 if given CPU is 1st core in package
615 cpu_is_first_core_in_package(int cpu)
617 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
621 get_physical_package_id(int cpu)
623 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
629 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
633 get_num_ht_siblings(int cpu)
641 ssnprintf(path, sizeof(path), "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
642 filep = fopen(path, "r");
644 ERROR("%s: open failed", path);
645 return -ERR_CANT_OPEN_FILE;
649 * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4)
650 * otherwinse 1 sibling (self).
652 matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2);
663 * run func(thread, core, package) in topology order
664 * skip non-present cpus
668 static int __attribute__((warn_unused_result))
669 for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
670 struct pkg_data *, struct thread_data *, struct core_data *,
671 struct pkg_data *), struct thread_data *thread_base,
672 struct core_data *core_base, struct pkg_data *pkg_base,
673 struct thread_data *thread_base2, struct core_data *core_base2,
674 struct pkg_data *pkg_base2)
676 int retval, pkg_no, core_no, thread_no;
678 for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
679 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
680 for (thread_no = 0; thread_no <
681 topo.num_threads_per_core; ++thread_no) {
682 struct thread_data *t, *t2;
683 struct core_data *c, *c2;
684 struct pkg_data *p, *p2;
686 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
688 if (cpu_is_not_present(t->cpu_id))
691 t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
693 c = GET_CORE(core_base, core_no, pkg_no);
694 c2 = GET_CORE(core_base2, core_no, pkg_no);
696 p = GET_PKG(pkg_base, pkg_no);
697 p2 = GET_PKG(pkg_base2, pkg_no);
699 retval = func(t, c, p, t2, c2, p2);
709 * run func(cpu) on every cpu in /proc/stat
710 * return max_cpu number
712 static int __attribute__((warn_unused_result))
713 for_all_proc_cpus(int (func)(int))
719 fp = fopen("/proc/stat", "r");
721 ERROR("Failed to open /proc/stat");
722 return -ERR_CANT_OPEN_FILE;
725 retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
727 ERROR("Failed to parse /proc/stat");
728 return -ERR_CANT_READ_PROC_STAT;
732 retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
736 retval = func(cpu_num);
748 * remember the last one seen, it will be the max
753 if (topo.max_cpu_num < cpu)
754 topo.max_cpu_num = cpu;
760 mark_cpu_present(int cpu)
762 CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
768 turbostat_submit (const char *plugin_instance,
769 const char *type, const char *type_instance,
772 value_list_t vl = VALUE_LIST_INIT;
778 sstrncpy (vl.host, hostname_g, sizeof (vl.host));
779 sstrncpy (vl.plugin, PLUGIN_NAME, sizeof (vl.plugin));
780 if (plugin_instance != NULL)
781 sstrncpy (vl.plugin_instance, plugin_instance, sizeof (vl.plugin_instance));
782 sstrncpy (vl.type, type, sizeof (vl.type));
783 if (type_instance != NULL)
784 sstrncpy (vl.type_instance, type_instance, sizeof (vl.type_instance));
786 plugin_dispatch_values (&vl);
790 * column formatting convention & formats
791 * package: "pk" 2 columns %2d
792 * core: "cor" 3 columns %3d
793 * CPU: "CPU" 3 columns %3d
798 * GHz: "GHz" 3 columns %3.2
799 * TSC: "TSC" 3 columns %3.2
800 * SMI: "SMI" 4 columns %4d
801 * percentage " %pc3" %6.2
802 * Perf Status percentage: %5.2
803 * "CTMP" 4 columns %4d
807 submit_counters(struct thread_data *t, struct core_data *c,
811 double interval_float;
813 interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
815 ssnprintf(name, sizeof(name), "cpu%02d", t->cpu_id);
817 if (!aperf_mperf_unstable)
818 turbostat_submit(name, "percent", "c0", 100.0 * t->mperf/t->tsc);
819 if (!aperf_mperf_unstable)
820 turbostat_submit(name, "percent", "c1", 100.0 * t->c1/t->tsc);
823 if ((!aperf_mperf_unstable) || (!(t->aperf > t->tsc || t->mperf > t->tsc)))
824 turbostat_submit(NULL, "frequency", name, 1.0 * t->tsc / 1000000000 * t->aperf / t->mperf / interval_float);
827 turbostat_submit(NULL, "current", name, t->smi_count);
829 /* print per-core data only for 1st thread in core */
830 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
833 ssnprintf(name, sizeof(name), "core%02d", c->core_id);
835 if (do_core_cstate & (1 << 3))
836 turbostat_submit(name, "percent", "c3", 100.0 * c->c3/t->tsc);
837 if (do_core_cstate & (1 << 6))
838 turbostat_submit(name, "percent", "c6", 100.0 * c->c6/t->tsc);
839 if (do_core_cstate & (1 << 7))
840 turbostat_submit(name, "percent", "c7", 100.0 * c->c7/t->tsc);
843 turbostat_submit(NULL, "temperature", name, c->core_temp_c);
845 /* print per-package data only for 1st core in package */
846 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
849 ssnprintf(name, sizeof(name), "pkg%02d", p->package_id);
852 turbostat_submit(NULL, "temperature", name, p->pkg_temp_c);
854 if (do_pkg_cstate & (1 << 2))
855 turbostat_submit(name, "percent", "pc2", 100.0 * p->pc2/t->tsc);
856 if (do_pkg_cstate & (1 << 3))
857 turbostat_submit(name, "percent", "pc3", 100.0 * p->pc3/t->tsc);
858 if (do_pkg_cstate & (1 << 6))
859 turbostat_submit(name, "percent", "pc6", 100.0 * p->pc6/t->tsc);
860 if (do_pkg_cstate & (1 << 7))
861 turbostat_submit(name, "percent", "pc7", 100.0 * p->pc7/t->tsc);
862 if (do_pkg_cstate & (1 << 8))
863 turbostat_submit(name, "percent", "pc8", 100.0 * p->pc8/t->tsc);
864 if (do_pkg_cstate & (1 << 9))
865 turbostat_submit(name, "percent", "pc9", 100.0 * p->pc9/t->tsc);
866 if (do_pkg_cstate & (1 << 10))
867 turbostat_submit(name, "percent", "pc10", 100.0 * p->pc10/t->tsc);
870 if (do_rapl & RAPL_PKG)
871 turbostat_submit(name, "power", "Pkg_W", p->energy_pkg * rapl_energy_units / interval_float);
872 if (do_rapl & RAPL_CORES)
873 turbostat_submit(name, "power", "Cor_W", p->energy_cores * rapl_energy_units / interval_float);
874 if (do_rapl & RAPL_GFX)
875 turbostat_submit(name, "power", "GFX_W", p->energy_gfx * rapl_energy_units / interval_float);
876 if (do_rapl & RAPL_DRAM)
877 turbostat_submit(name, "power", "RAM_W", p->energy_dram * rapl_energy_units / interval_float);
884 turbostat_read(user_data_t * not_used)
889 if ((ret = setup_all_buffers()) < 0)
893 if (for_all_proc_cpus(cpu_is_not_present)) {
895 if ((ret = setup_all_buffers()) < 0)
897 if (for_all_proc_cpus(cpu_is_not_present))
898 return -ERR_CPU_NOT_PRESENT;
901 /* Saving the scheduling affinity, as it will be modified by get_counters */
902 if (sched_getaffinity(0, cpu_saved_affinity_setsize, cpu_saved_affinity_set) != 0)
903 return -ERR_CPU_SAVE_SCHED_AFFINITY;
906 if ((ret = for_all_cpus(get_counters, EVEN_COUNTERS)) < 0)
908 gettimeofday(&tv_even, (struct timezone *)NULL);
916 if ((ret = for_all_cpus(get_counters, ODD_COUNTERS)) < 0)
918 gettimeofday(&tv_odd, (struct timezone *)NULL);
920 timersub(&tv_odd, &tv_even, &tv_delta);
921 if ((ret = for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS)) < 0)
923 if ((ret = for_all_cpus(submit_counters, EVEN_COUNTERS)) < 0)
926 if ((ret = for_all_cpus(get_counters, EVEN_COUNTERS)) < 0)
928 gettimeofday(&tv_even, (struct timezone *)NULL);
930 timersub(&tv_even, &tv_odd, &tv_delta);
931 if ((ret = for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS)) < 0)
933 if ((ret = for_all_cpus(submit_counters, ODD_COUNTERS)) < 0)
939 * Let's restore the affinity
940 * This might fail if the number of CPU changed, but we can't do anything in that case..
942 (void)sched_setaffinity(0, cpu_saved_affinity_setsize, cpu_saved_affinity_set);
946 static int __attribute__((warn_unused_result))
951 if (stat("/dev/cpu/0/msr", &sb)) {
952 ERROR("no /dev/cpu/0/msr, try \"# modprobe msr\"");
958 static int __attribute__((warn_unused_result))
962 ERROR("must be root");
963 return -ERR_NOT_ROOT;
969 * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where
970 * the Thermal Control Circuit (TCC) activates.
971 * This is usually equal to tjMax.
973 * Older processors do not have this MSR, so there we guess,
974 * but also allow cmdline over-ride with -T.
976 * Several MSR temperature values are in units of degrees-C
977 * below this value, including the Digital Thermal Sensor (DTS),
978 * Package Thermal Management Sensor (PTM), and thermal event thresholds.
980 static int __attribute__((warn_unused_result))
981 set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
983 unsigned long long msr;
984 unsigned int target_c_local;
986 /* tcc_activation_temp is used only for dts or ptm */
987 if (!(do_dts || do_ptm))
990 /* this is a per-package concept */
991 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
994 if (tcc_activation_temp != 0) {
995 p->tcc_activation_temp = tcc_activation_temp;
999 if (get_msr(t->cpu_id, MSR_IA32_TEMPERATURE_TARGET, &msr))
1002 target_c_local = (msr >> 16) & 0x7F;
1004 if (target_c_local < 85 || target_c_local > 127)
1007 p->tcc_activation_temp = target_c_local;
1012 p->tcc_activation_temp = TJMAX_DEFAULT;
1013 WARNING("cpu%d: Guessing tjMax %d C, Please use TCCActivationTemp to specify",
1014 t->cpu_id, p->tcc_activation_temp);
1020 * Identify the functionality of the CPU
1022 static int __attribute__((warn_unused_result))
1025 unsigned int eax, ebx, ecx, edx, max_level;
1026 unsigned int fms, family, model;
1029 * - EAX: Maximum Input Value for Basic CPUID Information
1030 * - EBX: "Genu" (0x756e6547)
1031 * - EDX: "ineI" (0x49656e69)
1032 * - ECX: "ntel" (0x6c65746e)
1034 max_level = ebx = ecx = edx = 0;
1035 __get_cpuid(0, &max_level, &ebx, &ecx, &edx);
1036 if (ebx != 0x756e6547 && edx != 0x49656e69 && ecx != 0x6c65746e) {
1037 ERROR("Unsupported CPU");
1038 return -UNSUPPORTED_CPU;
1042 * - EAX: Version Information: Type, Family, Model, and Stepping ID
1045 * + 12-13: Processor type
1046 * + 16-19: Extended Model ID
1047 * + 20-27: Extended Family ID
1048 * - EDX: Feature Information:
1049 * + 5: Support for MSR read/write operations
1051 fms = ebx = ecx = edx = 0;
1052 __get_cpuid(1, &fms, &ebx, &ecx, &edx);
1053 family = (fms >> 8) & 0xf;
1054 model = (fms >> 4) & 0xf;
1056 family += (fms >> 20) & 0xf;
1057 if (family == 6 || family == 0xf)
1058 model += ((fms >> 16) & 0xf) << 4;
1059 if (!(edx & (1 << 5))) {
1060 ERROR("CPUID: no MSR");
1065 * CPUID(0x80000000):
1066 * - EAX: Maximum Input Value for Extended Function CPUID Information
1068 * This allows us to verify if the CPUID(0x80000007) can be called
1070 * This check is valid for both Intel and AMD.
1072 max_level = ebx = ecx = edx = 0;
1073 __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
1074 if (max_level < 0x80000007) {
1075 ERROR("CPUID: no invariant TSC (max_level 0x%x)", max_level);
1076 return -ERR_NO_INVARIANT_TSC;
1080 * CPUID(0x80000007):
1082 * + 8: Invariant TSC available if set
1084 * This check is valid for both Intel and AMD
1086 __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
1087 if (!(edx & (1 << 8))) {
1088 ERROR("No invariant TSC");
1089 return -ERR_NO_INVARIANT_TSC;
1095 * + 0: Digital temperature sensor is supported if set
1096 * + 6: Package thermal management is supported if set
1098 * + 0: Hardware Coordination Feedback Capability (Presence of IA32_MPERF and IA32_APERF).
1099 * + 3: The processor supports performance-energy bias preference if set.
1100 * It also implies the presence of a new architectural MSR called IA32_ENERGY_PERF_BIAS
1102 * This check is valid for both Intel and AMD
1104 __get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
1105 do_dts = eax & (1 << 0);
1106 do_ptm = eax & (1 << 6);
1107 if (!(ecx & (1 << 0))) {
1109 return -ERR_NO_APERF;
1113 * Enable or disable C states depending on the model and family
1117 /* Atom (partial) */
1120 do_pkg_cstate = (1 << 2) | (1 << 4) | (1 << 6);
1123 case 0x37: /* BYT */
1125 case 0x4D: /* AVN */
1128 do_core_cstate = (1 << 1) | (1 << 6);
1129 do_pkg_cstate = (1 << 6);
1132 case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
1133 case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
1134 case 0x1F: /* Core i7 and i5 Processor - Nehalem */
1135 case 0x2E: /* Nehalem-EX Xeon - Beckton */
1136 do_core_cstate = (1 << 3) | (1 << 6);
1137 do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1140 case 0x25: /* Westmere Client - Clarkdale, Arrandale */
1141 case 0x2C: /* Westmere EP - Gulftown */
1142 case 0x2F: /* Westmere-EX Xeon - Eagleton */
1143 do_core_cstate = (1 << 3) | (1 << 6);
1144 do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1147 case 0x2A: /* SNB */
1148 case 0x2D: /* SNB Xeon */
1149 do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1150 do_pkg_cstate = (1 << 2) | (1 << 3) | (1 << 6) | (1 << 7);
1153 case 0x3A: /* IVB */
1154 case 0x3E: /* IVB Xeon */
1155 do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1156 do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1158 /* Haswell Bridge */
1159 case 0x3C: /* HSW */
1160 case 0x3F: /* HSW */
1161 case 0x46: /* HSW */
1162 do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1163 do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1165 case 0x45: /* HSW */
1166 do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1167 do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7) | (1 << 8) | (1 << 9) | (1 << 10);
1170 case 0x4F: /* BDW */
1171 case 0x56: /* BDX-DE */
1172 do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1173 do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1175 case 0x3D: /* BDW */
1176 do_core_cstate = (1 << 3) | (1 << 6) | (1 << 7);
1177 do_pkg_cstate = (1 << 3) | (1 << 6) | (1 << 7) | (1 << 8) | (1 << 9) | (1 << 10);
1180 ERROR("Unsupported CPU");
1188 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_PKG_POWER_INFO | RAPL_GFX;
1191 do_rapl = RAPL_PKG | RAPL_PKG_POWER_INFO | RAPL_PKG_PERF_STATUS | RAPL_DRAM | RAPL_DRAM_PERF_STATUS;
1195 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_PKG_POWER_INFO | RAPL_PKG_PERF_STATUS | RAPL_DRAM | RAPL_DRAM_PERF_STATUS;
1199 do_rapl = RAPL_PKG | RAPL_CORES;
1205 ERROR("Unsupported CPU");
1206 return -UNSUPPORTED_CPU;
1211 if (get_msr(0, MSR_RAPL_POWER_UNIT, &msr))
1215 rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
1217 rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
1225 static int __attribute__((warn_unused_result))
1230 int max_core_id = 0;
1231 int max_package_id = 0;
1232 int max_siblings = 0;
1233 struct cpu_topology {
1235 int physical_package_id;
1238 /* Initialize num_cpus, max_cpu_num */
1240 topo.max_cpu_num = 0;
1241 ret = for_all_proc_cpus(count_cpus);
1245 DEBUG("num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num);
1247 cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology));
1249 ERROR("calloc cpus");
1254 * Allocate and initialize cpu_present_set
1256 cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1));
1257 if (cpu_present_set == NULL) {
1260 return -ERR_CPU_ALLOC;
1262 cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
1263 CPU_ZERO_S(cpu_present_setsize, cpu_present_set);
1264 ret = for_all_proc_cpus(mark_cpu_present);
1271 * Allocate and initialize cpu_affinity_set
1273 cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
1274 if (cpu_affinity_set == NULL) {
1277 return -ERR_CPU_ALLOC;
1279 cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
1280 CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
1284 * Allocate and initialize cpu_saved_affinity_set
1286 cpu_saved_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
1287 if (cpu_saved_affinity_set == NULL) {
1290 return -ERR_CPU_ALLOC;
1292 cpu_saved_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
1293 CPU_ZERO_S(cpu_saved_affinity_setsize, cpu_saved_affinity_set);
1298 * find max_core_id, max_package_id
1300 for (i = 0; i <= topo.max_cpu_num; ++i) {
1303 if (cpu_is_not_present(i)) {
1304 WARNING("cpu%d NOT PRESENT", i);
1307 cpus[i].core_id = get_core_id(i);
1308 if (cpus[i].core_id < 0)
1309 return cpus[i].core_id;
1310 if (cpus[i].core_id > max_core_id)
1311 max_core_id = cpus[i].core_id;
1313 cpus[i].physical_package_id = get_physical_package_id(i);
1314 if (cpus[i].physical_package_id < 0)
1315 return cpus[i].physical_package_id;
1316 if (cpus[i].physical_package_id > max_package_id)
1317 max_package_id = cpus[i].physical_package_id;
1319 siblings = get_num_ht_siblings(i);
1322 if (siblings > max_siblings)
1323 max_siblings = siblings;
1324 DEBUG("cpu %d pkg %d core %d\n",
1325 i, cpus[i].physical_package_id, cpus[i].core_id);
1327 topo.num_cores_per_pkg = max_core_id + 1;
1328 DEBUG("max_core_id %d, sizing for %d cores per package\n",
1329 max_core_id, topo.num_cores_per_pkg);
1331 topo.num_packages = max_package_id + 1;
1332 DEBUG("max_package_id %d, sizing for %d packages\n",
1333 max_package_id, topo.num_packages);
1335 topo.num_threads_per_core = max_siblings;
1336 DEBUG("max_siblings %d\n", max_siblings);
1343 allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p)
1347 *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg *
1348 topo.num_packages, sizeof(struct thread_data));
1352 for (i = 0; i < topo.num_threads_per_core *
1353 topo.num_cores_per_pkg * topo.num_packages; i++)
1354 (*t)[i].cpu_id = -1;
1356 *c = calloc(topo.num_cores_per_pkg * topo.num_packages,
1357 sizeof(struct core_data));
1361 for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++)
1362 (*c)[i].core_id = -1;
1364 *p = calloc(topo.num_packages, sizeof(struct pkg_data));
1368 for (i = 0; i < topo.num_packages; i++)
1369 (*p)[i].package_id = i;
1373 ERROR("calloc counters");
1379 * set cpu_id, core_num, pkg_num
1380 * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE
1382 * increment topo.num_cores when 1st core in pkg seen
1385 init_counter(struct thread_data *thread_base, struct core_data *core_base,
1386 struct pkg_data *pkg_base, int thread_num, int core_num,
1387 int pkg_num, int cpu_id)
1390 struct thread_data *t;
1391 struct core_data *c;
1394 t = GET_THREAD(thread_base, thread_num, core_num, pkg_num);
1395 c = GET_CORE(core_base, core_num, pkg_num);
1396 p = GET_PKG(pkg_base, pkg_num);
1399 if (thread_num == 0) {
1400 t->flags |= CPU_IS_FIRST_THREAD_IN_CORE;
1401 if ((ret = cpu_is_first_core_in_package(cpu_id)) < 0) {
1403 } else if (ret != 0) {
1404 t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE;
1408 c->core_id = core_num;
1409 p->package_id = pkg_num;
1416 initialize_counters(int cpu_id)
1418 int my_thread_id, my_core_id, my_package_id;
1421 my_package_id = get_physical_package_id(cpu_id);
1422 if (my_package_id < 0)
1423 return my_package_id;
1424 my_core_id = get_core_id(cpu_id);
1428 if ((ret = cpu_is_first_sibling_in_core(cpu_id)) < 0) {
1430 } else if (ret != 0) {
1437 ret = init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
1440 ret = init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
1446 #define DO_OR_GOTO_ERR(something) \
1448 ret = (something); \
1453 static int setup_all_buffers(void)
1457 DO_OR_GOTO_ERR(topology_probe());
1458 DO_OR_GOTO_ERR(allocate_counters(&thread_even, &core_even, &package_even));
1459 DO_OR_GOTO_ERR(allocate_counters(&thread_odd, &core_odd, &package_odd));
1460 DO_OR_GOTO_ERR(for_all_proc_cpus(initialize_counters));
1470 turbostat_init(void)
1474 DO_OR_GOTO_ERR(check_super_user());
1475 DO_OR_GOTO_ERR(probe_cpu());
1476 DO_OR_GOTO_ERR(check_dev_msr());
1477 DO_OR_GOTO_ERR(setup_all_buffers());
1478 DO_OR_GOTO_ERR(for_all_cpus(set_temperature_target, EVEN_COUNTERS));
1479 DO_OR_GOTO_ERR(for_all_cpus(set_temperature_target, ODD_COUNTERS));
1481 plugin_register_complex_read(NULL, PLUGIN_NAME, turbostat_read, NULL, NULL);
1489 static const char *config_keys[] =
1491 "TCCActivationTemp",
1493 static const int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
1496 turbostat_config(const char *key, const char *value)
1498 long unsigned int tmp_val;
1501 if (strcasecmp("TCCActivationTemp", key) == 0) {
1502 tmp_val = strtoul(value, &end, 0);
1503 if (*end != '\0' || tmp_val > UINT_MAX)
1505 tcc_activation_temp = (unsigned int) tmp_val;
1512 void module_register(void);
1513 void module_register(void)
1515 plugin_register_init(PLUGIN_NAME, turbostat_init);
1516 plugin_register_config(PLUGIN_NAME, turbostat_config, config_keys, config_keys_num);