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btrfs: replace remaining do_div calls with div_u64 variants
[linux/fpc-iii.git] / tools / power / x86 / turbostat / turbostat.c
blob5b1b807265a15e826e174a197c06b6c0788ff9b7
1 /*
2 * turbostat -- show CPU frequency and C-state residency
3 * on modern Intel turbo-capable processors.
4 *
5 * Copyright (c) 2013 Intel Corporation.
6 * Len Brown <len.brown@intel.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms and conditions of the GNU General Public License,
10 * version 2, as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 *
17 * You should have received a copy of the GNU General Public License along with
18 * this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
20 */
21
22 #define _GNU_SOURCE
23 #include MSRHEADER
24 #include <stdarg.h>
25 #include <stdio.h>
26 #include <err.h>
27 #include <unistd.h>
28 #include <sys/types.h>
29 #include <sys/wait.h>
30 #include <sys/stat.h>
31 #include <sys/resource.h>
32 #include <fcntl.h>
33 #include <signal.h>
34 #include <sys/time.h>
35 #include <stdlib.h>
36 #include <dirent.h>
37 #include <string.h>
38 #include <ctype.h>
39 #include <sched.h>
40 #include <cpuid.h>
41
42 char *proc_stat = "/proc/stat";
43 unsigned int interval_sec = 5; /* set with -i interval_sec */
44 unsigned int verbose; /* set with -v */
45 unsigned int rapl_verbose; /* set with -R */
46 unsigned int rapl_joules; /* set with -J */
47 unsigned int thermal_verbose; /* set with -T */
48 unsigned int summary_only; /* set with -S */
49 unsigned int dump_only; /* set with -s */
50 unsigned int skip_c0;
51 unsigned int skip_c1;
52 unsigned int do_nhm_cstates;
53 unsigned int do_snb_cstates;
54 unsigned int do_c8_c9_c10;
55 unsigned int do_slm_cstates;
56 unsigned int use_c1_residency_msr;
57 unsigned int has_aperf;
58 unsigned int has_epb;
59 unsigned int units = 1000000; /* MHz etc */
60 unsigned int genuine_intel;
61 unsigned int has_invariant_tsc;
62 unsigned int do_nehalem_platform_info;
63 unsigned int do_nehalem_turbo_ratio_limit;
64 unsigned int do_ivt_turbo_ratio_limit;
65 unsigned int extra_msr_offset32;
66 unsigned int extra_msr_offset64;
67 unsigned int extra_delta_offset32;
68 unsigned int extra_delta_offset64;
69 int do_smi;
70 double bclk;
71 unsigned int show_pkg;
72 unsigned int show_core;
73 unsigned int show_cpu;
74 unsigned int show_pkg_only;
75 unsigned int show_core_only;
76 char *output_buffer, *outp;
77 unsigned int do_rapl;
78 unsigned int do_dts;
79 unsigned int do_ptm;
80 unsigned int tcc_activation_temp;
81 unsigned int tcc_activation_temp_override;
82 double rapl_power_units, rapl_energy_units, rapl_time_units;
83 double rapl_joule_counter_range;
84
85 #define RAPL_PKG (1 << 0)
86 /* 0x610 MSR_PKG_POWER_LIMIT */
87 /* 0x611 MSR_PKG_ENERGY_STATUS */
88 #define RAPL_PKG_PERF_STATUS (1 << 1)
89 /* 0x613 MSR_PKG_PERF_STATUS */
90 #define RAPL_PKG_POWER_INFO (1 << 2)
91 /* 0x614 MSR_PKG_POWER_INFO */
92
93 #define RAPL_DRAM (1 << 3)
94 /* 0x618 MSR_DRAM_POWER_LIMIT */
95 /* 0x619 MSR_DRAM_ENERGY_STATUS */
96 /* 0x61c MSR_DRAM_POWER_INFO */
97 #define RAPL_DRAM_PERF_STATUS (1 << 4)
98 /* 0x61b MSR_DRAM_PERF_STATUS */
99
100 #define RAPL_CORES (1 << 5)
101 /* 0x638 MSR_PP0_POWER_LIMIT */
102 /* 0x639 MSR_PP0_ENERGY_STATUS */
103 #define RAPL_CORE_POLICY (1 << 6)
104 /* 0x63a MSR_PP0_POLICY */
105
106
107 #define RAPL_GFX (1 << 7)
108 /* 0x640 MSR_PP1_POWER_LIMIT */
109 /* 0x641 MSR_PP1_ENERGY_STATUS */
110 /* 0x642 MSR_PP1_POLICY */
111 #define TJMAX_DEFAULT 100
112
113 #define MAX(a, b) ((a) > (b) ? (a) : (b))
114
115 int aperf_mperf_unstable;
116 int backwards_count;
117 char *progname;
118
119 cpu_set_t *cpu_present_set, *cpu_affinity_set;
120 size_t cpu_present_setsize, cpu_affinity_setsize;
121
122 struct thread_data {
123 unsigned long long tsc;
124 unsigned long long aperf;
125 unsigned long long mperf;
126 unsigned long long c1;
127 unsigned long long extra_msr64;
128 unsigned long long extra_delta64;
129 unsigned long long extra_msr32;
130 unsigned long long extra_delta32;
131 unsigned int smi_count;
132 unsigned int cpu_id;
133 unsigned int flags;
134 #define CPU_IS_FIRST_THREAD_IN_CORE 0x2
135 #define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4
136 } *thread_even, *thread_odd;
137
138 struct core_data {
139 unsigned long long c3;
140 unsigned long long c6;
141 unsigned long long c7;
142 unsigned int core_temp_c;
143 unsigned int core_id;
144 } *core_even, *core_odd;
145
146 struct pkg_data {
147 unsigned long long pc2;
148 unsigned long long pc3;
149 unsigned long long pc6;
150 unsigned long long pc7;
151 unsigned long long pc8;
152 unsigned long long pc9;
153 unsigned long long pc10;
154 unsigned int package_id;
155 unsigned int energy_pkg; /* MSR_PKG_ENERGY_STATUS */
156 unsigned int energy_dram; /* MSR_DRAM_ENERGY_STATUS */
157 unsigned int energy_cores; /* MSR_PP0_ENERGY_STATUS */
158 unsigned int energy_gfx; /* MSR_PP1_ENERGY_STATUS */
159 unsigned int rapl_pkg_perf_status; /* MSR_PKG_PERF_STATUS */
160 unsigned int rapl_dram_perf_status; /* MSR_DRAM_PERF_STATUS */
161 unsigned int pkg_temp_c;
162
163 } *package_even, *package_odd;
164
165 #define ODD_COUNTERS thread_odd, core_odd, package_odd
166 #define EVEN_COUNTERS thread_even, core_even, package_even
167
168 #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \
169 (thread_base + (pkg_no) * topo.num_cores_per_pkg * \
170 topo.num_threads_per_core + \
171 (core_no) * topo.num_threads_per_core + (thread_no))
172 #define GET_CORE(core_base, core_no, pkg_no) \
173 (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no))
174 #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no)
175
176 struct system_summary {
177 struct thread_data threads;
178 struct core_data cores;
179 struct pkg_data packages;
180 } sum, average;
181
182
183 struct topo_params {
184 int num_packages;
185 int num_cpus;
186 int num_cores;
187 int max_cpu_num;
188 int num_cores_per_pkg;
189 int num_threads_per_core;
190 } topo;
191
192 struct timeval tv_even, tv_odd, tv_delta;
193
194 void setup_all_buffers(void);
195
196 int cpu_is_not_present(int cpu)
197 {
198 return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
199 }
200 /*
201 * run func(thread, core, package) in topology order
202 * skip non-present cpus
203 */
204
205 int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *),
206 struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base)
207 {
208 int retval, pkg_no, core_no, thread_no;
209
210 for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
211 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
212 for (thread_no = 0; thread_no <
213 topo.num_threads_per_core; ++thread_no) {
214 struct thread_data *t;
215 struct core_data *c;
216 struct pkg_data *p;
217
218 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
219
220 if (cpu_is_not_present(t->cpu_id))
221 continue;
222
223 c = GET_CORE(core_base, core_no, pkg_no);
224 p = GET_PKG(pkg_base, pkg_no);
225
226 retval = func(t, c, p);
227 if (retval)
228 return retval;
229 }
230 }
231 }
232 return 0;
233 }
234
235 int cpu_migrate(int cpu)
236 {
237 CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
238 CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set);
239 if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1)
240 return -1;
241 else
242 return 0;
243 }
244
245 int get_msr(int cpu, off_t offset, unsigned long long *msr)
246 {
247 ssize_t retval;
248 char pathname[32];
249 int fd;
250
251 sprintf(pathname, "/dev/cpu/%d/msr", cpu);
252 fd = open(pathname, O_RDONLY);
253 if (fd < 0)
254 return -1;
255
256 retval = pread(fd, msr, sizeof *msr, offset);
257 close(fd);
258
259 if (retval != sizeof *msr) {
260 fprintf(stderr, "%s offset 0x%llx read failed\n", pathname, (unsigned long long)offset);
261 return -1;
262 }
263
264 return 0;
265 }
266
267 /*
268 * Example Format w/ field column widths:
269 *
270 * Package Core CPU Avg_MHz Bzy_MHz TSC_MHz SMI %Busy CPU_%c1 CPU_%c3 CPU_%c6 CPU_%c7 CoreTmp PkgTmp Pkg%pc2 Pkg%pc3 Pkg%pc6 Pkg%pc7 PkgWatt CorWatt GFXWatt
271 * 123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678123456781234567812345678
272 */
273
274 void print_header(void)
275 {
276 if (show_pkg)
277 outp += sprintf(outp, " Package");
278 if (show_core)
279 outp += sprintf(outp, " Core");
280 if (show_cpu)
281 outp += sprintf(outp, " CPU");
282 if (has_aperf)
283 outp += sprintf(outp, " Avg_MHz");
284 if (do_nhm_cstates)
285 outp += sprintf(outp, " %%Busy");
286 if (has_aperf)
287 outp += sprintf(outp, " Bzy_MHz");
288 outp += sprintf(outp, " TSC_MHz");
289 if (do_smi)
290 outp += sprintf(outp, " SMI");
291 if (extra_delta_offset32)
292 outp += sprintf(outp, " count 0x%03X", extra_delta_offset32);
293 if (extra_delta_offset64)
294 outp += sprintf(outp, " COUNT 0x%03X", extra_delta_offset64);
295 if (extra_msr_offset32)
296 outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset32);
297 if (extra_msr_offset64)
298 outp += sprintf(outp, " MSR 0x%03X", extra_msr_offset64);
299 if (do_nhm_cstates)
300 outp += sprintf(outp, " CPU%%c1");
301 if (do_nhm_cstates && !do_slm_cstates)
302 outp += sprintf(outp, " CPU%%c3");
303 if (do_nhm_cstates)
304 outp += sprintf(outp, " CPU%%c6");
305 if (do_snb_cstates)
306 outp += sprintf(outp, " CPU%%c7");
307
308 if (do_dts)
309 outp += sprintf(outp, " CoreTmp");
310 if (do_ptm)
311 outp += sprintf(outp, " PkgTmp");
312
313 if (do_snb_cstates)
314 outp += sprintf(outp, " Pkg%%pc2");
315 if (do_nhm_cstates && !do_slm_cstates)
316 outp += sprintf(outp, " Pkg%%pc3");
317 if (do_nhm_cstates && !do_slm_cstates)
318 outp += sprintf(outp, " Pkg%%pc6");
319 if (do_snb_cstates)
320 outp += sprintf(outp, " Pkg%%pc7");
321 if (do_c8_c9_c10) {
322 outp += sprintf(outp, " Pkg%%pc8");
323 outp += sprintf(outp, " Pkg%%pc9");
324 outp += sprintf(outp, " Pk%%pc10");
325 }
326
327 if (do_rapl && !rapl_joules) {
328 if (do_rapl & RAPL_PKG)
329 outp += sprintf(outp, " PkgWatt");
330 if (do_rapl & RAPL_CORES)
331 outp += sprintf(outp, " CorWatt");
332 if (do_rapl & RAPL_GFX)
333 outp += sprintf(outp, " GFXWatt");
334 if (do_rapl & RAPL_DRAM)
335 outp += sprintf(outp, " RAMWatt");
336 if (do_rapl & RAPL_PKG_PERF_STATUS)
337 outp += sprintf(outp, " PKG_%%");
338 if (do_rapl & RAPL_DRAM_PERF_STATUS)
339 outp += sprintf(outp, " RAM_%%");
340 } else {
341 if (do_rapl & RAPL_PKG)
342 outp += sprintf(outp, " Pkg_J");
343 if (do_rapl & RAPL_CORES)
344 outp += sprintf(outp, " Cor_J");
345 if (do_rapl & RAPL_GFX)
346 outp += sprintf(outp, " GFX_J");
347 if (do_rapl & RAPL_DRAM)
348 outp += sprintf(outp, " RAM_W");
349 if (do_rapl & RAPL_PKG_PERF_STATUS)
350 outp += sprintf(outp, " PKG_%%");
351 if (do_rapl & RAPL_DRAM_PERF_STATUS)
352 outp += sprintf(outp, " RAM_%%");
353 outp += sprintf(outp, " time");
354
355 }
356 outp += sprintf(outp, "\n");
357 }
358
359 int dump_counters(struct thread_data *t, struct core_data *c,
360 struct pkg_data *p)
361 {
362 outp += sprintf(outp, "t %p, c %p, p %p\n", t, c, p);
363
364 if (t) {
365 outp += sprintf(outp, "CPU: %d flags 0x%x\n",
366 t->cpu_id, t->flags);
367 outp += sprintf(outp, "TSC: %016llX\n", t->tsc);
368 outp += sprintf(outp, "aperf: %016llX\n", t->aperf);
369 outp += sprintf(outp, "mperf: %016llX\n", t->mperf);
370 outp += sprintf(outp, "c1: %016llX\n", t->c1);
371 outp += sprintf(outp, "msr0x%x: %08llX\n",
372 extra_delta_offset32, t->extra_delta32);
373 outp += sprintf(outp, "msr0x%x: %016llX\n",
374 extra_delta_offset64, t->extra_delta64);
375 outp += sprintf(outp, "msr0x%x: %08llX\n",
376 extra_msr_offset32, t->extra_msr32);
377 outp += sprintf(outp, "msr0x%x: %016llX\n",
378 extra_msr_offset64, t->extra_msr64);
379 if (do_smi)
380 outp += sprintf(outp, "SMI: %08X\n", t->smi_count);
381 }
382
383 if (c) {
384 outp += sprintf(outp, "core: %d\n", c->core_id);
385 outp += sprintf(outp, "c3: %016llX\n", c->c3);
386 outp += sprintf(outp, "c6: %016llX\n", c->c6);
387 outp += sprintf(outp, "c7: %016llX\n", c->c7);
388 outp += sprintf(outp, "DTS: %dC\n", c->core_temp_c);
389 }
390
391 if (p) {
392 outp += sprintf(outp, "package: %d\n", p->package_id);
393 outp += sprintf(outp, "pc2: %016llX\n", p->pc2);
394 outp += sprintf(outp, "pc3: %016llX\n", p->pc3);
395 outp += sprintf(outp, "pc6: %016llX\n", p->pc6);
396 outp += sprintf(outp, "pc7: %016llX\n", p->pc7);
397 outp += sprintf(outp, "pc8: %016llX\n", p->pc8);
398 outp += sprintf(outp, "pc9: %016llX\n", p->pc9);
399 outp += sprintf(outp, "pc10: %016llX\n", p->pc10);
400 outp += sprintf(outp, "Joules PKG: %0X\n", p->energy_pkg);
401 outp += sprintf(outp, "Joules COR: %0X\n", p->energy_cores);
402 outp += sprintf(outp, "Joules GFX: %0X\n", p->energy_gfx);
403 outp += sprintf(outp, "Joules RAM: %0X\n", p->energy_dram);
404 outp += sprintf(outp, "Throttle PKG: %0X\n",
405 p->rapl_pkg_perf_status);
406 outp += sprintf(outp, "Throttle RAM: %0X\n",
407 p->rapl_dram_perf_status);
408 outp += sprintf(outp, "PTM: %dC\n", p->pkg_temp_c);
409 }
410
411 outp += sprintf(outp, "\n");
412
413 return 0;
414 }
415
416 /*
417 * column formatting convention & formats
418 */
419 int format_counters(struct thread_data *t, struct core_data *c,
420 struct pkg_data *p)
421 {
422 double interval_float;
423 char *fmt8;
424
425 /* if showing only 1st thread in core and this isn't one, bail out */
426 if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
427 return 0;
428
429 /* if showing only 1st thread in pkg and this isn't one, bail out */
430 if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
431 return 0;
432
433 interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0;
434
435 /* topo columns, print blanks on 1st (average) line */
436 if (t == &average.threads) {
437 if (show_pkg)
438 outp += sprintf(outp, " -");
439 if (show_core)
440 outp += sprintf(outp, " -");
441 if (show_cpu)
442 outp += sprintf(outp, " -");
443 } else {
444 if (show_pkg) {
445 if (p)
446 outp += sprintf(outp, "%8d", p->package_id);
447 else
448 outp += sprintf(outp, " -");
449 }
450 if (show_core) {
451 if (c)
452 outp += sprintf(outp, "%8d", c->core_id);
453 else
454 outp += sprintf(outp, " -");
455 }
456 if (show_cpu)
457 outp += sprintf(outp, "%8d", t->cpu_id);
458 }
459
460 /* AvgMHz */
461 if (has_aperf)
462 outp += sprintf(outp, "%8.0f",
463 1.0 / units * t->aperf / interval_float);
464
465 /* %c0 */
466 if (do_nhm_cstates) {
467 if (!skip_c0)
468 outp += sprintf(outp, "%8.2f", 100.0 * t->mperf/t->tsc);
469 else
470 outp += sprintf(outp, "********");
471 }
472
473 /* BzyMHz */
474 if (has_aperf)
475 outp += sprintf(outp, "%8.0f",
476 1.0 * t->tsc / units * t->aperf / t->mperf / interval_float);
477
478 /* TSC */
479 outp += sprintf(outp, "%8.0f", 1.0 * t->tsc/units/interval_float);
480
481 /* SMI */
482 if (do_smi)
483 outp += sprintf(outp, "%8d", t->smi_count);
484
485 /* delta */
486 if (extra_delta_offset32)
487 outp += sprintf(outp, " %11llu", t->extra_delta32);
488
489 /* DELTA */
490 if (extra_delta_offset64)
491 outp += sprintf(outp, " %11llu", t->extra_delta64);
492 /* msr */
493 if (extra_msr_offset32)
494 outp += sprintf(outp, " 0x%08llx", t->extra_msr32);
495
496 /* MSR */
497 if (extra_msr_offset64)
498 outp += sprintf(outp, " 0x%016llx", t->extra_msr64);
499
500 if (do_nhm_cstates) {
501 if (!skip_c1)
502 outp += sprintf(outp, "%8.2f", 100.0 * t->c1/t->tsc);
503 else
504 outp += sprintf(outp, "********");
505 }
506
507 /* print per-core data only for 1st thread in core */
508 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
509 goto done;
510
511 if (do_nhm_cstates && !do_slm_cstates)
512 outp += sprintf(outp, "%8.2f", 100.0 * c->c3/t->tsc);
513 if (do_nhm_cstates)
514 outp += sprintf(outp, "%8.2f", 100.0 * c->c6/t->tsc);
515 if (do_snb_cstates)
516 outp += sprintf(outp, "%8.2f", 100.0 * c->c7/t->tsc);
517
518 if (do_dts)
519 outp += sprintf(outp, "%8d", c->core_temp_c);
520
521 /* print per-package data only for 1st core in package */
522 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
523 goto done;
524
525 if (do_ptm)
526 outp += sprintf(outp, "%8d", p->pkg_temp_c);
527
528 if (do_snb_cstates)
529 outp += sprintf(outp, "%8.2f", 100.0 * p->pc2/t->tsc);
530 if (do_nhm_cstates && !do_slm_cstates)
531 outp += sprintf(outp, "%8.2f", 100.0 * p->pc3/t->tsc);
532 if (do_nhm_cstates && !do_slm_cstates)
533 outp += sprintf(outp, "%8.2f", 100.0 * p->pc6/t->tsc);
534 if (do_snb_cstates)
535 outp += sprintf(outp, "%8.2f", 100.0 * p->pc7/t->tsc);
536 if (do_c8_c9_c10) {
537 outp += sprintf(outp, "%8.2f", 100.0 * p->pc8/t->tsc);
538 outp += sprintf(outp, "%8.2f", 100.0 * p->pc9/t->tsc);
539 outp += sprintf(outp, "%8.2f", 100.0 * p->pc10/t->tsc);
540 }
541
542 /*
543 * If measurement interval exceeds minimum RAPL Joule Counter range,
544 * indicate that results are suspect by printing "**" in fraction place.
545 */
546 if (interval_float < rapl_joule_counter_range)
547 fmt8 = "%8.2f";
548 else
549 fmt8 = " %6.0f**";
550
551 if (do_rapl && !rapl_joules) {
552 if (do_rapl & RAPL_PKG)
553 outp += sprintf(outp, fmt8, p->energy_pkg * rapl_energy_units / interval_float);
554 if (do_rapl & RAPL_CORES)
555 outp += sprintf(outp, fmt8, p->energy_cores * rapl_energy_units / interval_float);
556 if (do_rapl & RAPL_GFX)
557 outp += sprintf(outp, fmt8, p->energy_gfx * rapl_energy_units / interval_float);
558 if (do_rapl & RAPL_DRAM)
559 outp += sprintf(outp, fmt8, p->energy_dram * rapl_energy_units / interval_float);
560 if (do_rapl & RAPL_PKG_PERF_STATUS)
561 outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
562 if (do_rapl & RAPL_DRAM_PERF_STATUS)
563 outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
564 } else {
565 if (do_rapl & RAPL_PKG)
566 outp += sprintf(outp, fmt8,
567 p->energy_pkg * rapl_energy_units);
568 if (do_rapl & RAPL_CORES)
569 outp += sprintf(outp, fmt8,
570 p->energy_cores * rapl_energy_units);
571 if (do_rapl & RAPL_GFX)
572 outp += sprintf(outp, fmt8,
573 p->energy_gfx * rapl_energy_units);
574 if (do_rapl & RAPL_DRAM)
575 outp += sprintf(outp, fmt8,
576 p->energy_dram * rapl_energy_units);
577 if (do_rapl & RAPL_PKG_PERF_STATUS)
578 outp += sprintf(outp, fmt8, 100.0 * p->rapl_pkg_perf_status * rapl_time_units / interval_float);
579 if (do_rapl & RAPL_DRAM_PERF_STATUS)
580 outp += sprintf(outp, fmt8, 100.0 * p->rapl_dram_perf_status * rapl_time_units / interval_float);
581 outp += sprintf(outp, fmt8, interval_float);
582
583 }
584 done:
585 outp += sprintf(outp, "\n");
586
587 return 0;
588 }
589
590 void flush_stdout()
591 {
592 fputs(output_buffer, stdout);
593 fflush(stdout);
594 outp = output_buffer;
595 }
596 void flush_stderr()
597 {
598 fputs(output_buffer, stderr);
599 outp = output_buffer;
600 }
601 void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
602 {
603 static int printed;
604
605 if (!printed || !summary_only)
606 print_header();
607
608 if (topo.num_cpus > 1)
609 format_counters(&average.threads, &average.cores,
610 &average.packages);
611
612 printed = 1;
613
614 if (summary_only)
615 return;
616
617 for_all_cpus(format_counters, t, c, p);
618 }
619
620 #define DELTA_WRAP32(new, old) \
621 if (new > old) { \
622 old = new - old; \
623 } else { \
624 old = 0x100000000 + new - old; \
625 }
626
627 void
628 delta_package(struct pkg_data *new, struct pkg_data *old)
629 {
630 old->pc2 = new->pc2 - old->pc2;
631 old->pc3 = new->pc3 - old->pc3;
632 old->pc6 = new->pc6 - old->pc6;
633 old->pc7 = new->pc7 - old->pc7;
634 old->pc8 = new->pc8 - old->pc8;
635 old->pc9 = new->pc9 - old->pc9;
636 old->pc10 = new->pc10 - old->pc10;
637 old->pkg_temp_c = new->pkg_temp_c;
638
639 DELTA_WRAP32(new->energy_pkg, old->energy_pkg);
640 DELTA_WRAP32(new->energy_cores, old->energy_cores);
641 DELTA_WRAP32(new->energy_gfx, old->energy_gfx);
642 DELTA_WRAP32(new->energy_dram, old->energy_dram);
643 DELTA_WRAP32(new->rapl_pkg_perf_status, old->rapl_pkg_perf_status);
644 DELTA_WRAP32(new->rapl_dram_perf_status, old->rapl_dram_perf_status);
645 }
646
647 void
648 delta_core(struct core_data *new, struct core_data *old)
649 {
650 old->c3 = new->c3 - old->c3;
651 old->c6 = new->c6 - old->c6;
652 old->c7 = new->c7 - old->c7;
653 old->core_temp_c = new->core_temp_c;
654 }
655
656 /*
657 * old = new - old
658 */
659 void
660 delta_thread(struct thread_data *new, struct thread_data *old,
661 struct core_data *core_delta)
662 {
663 old->tsc = new->tsc - old->tsc;
664
665 /* check for TSC < 1 Mcycles over interval */
666 if (old->tsc < (1000 * 1000))
667 errx(-3, "Insanely slow TSC rate, TSC stops in idle?\n"
668 "You can disable all c-states by booting with \"idle=poll\"\n"
669 "or just the deep ones with \"processor.max_cstate=1\"");
670
671 old->c1 = new->c1 - old->c1;
672
673 if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) {
674 old->aperf = new->aperf - old->aperf;
675 old->mperf = new->mperf - old->mperf;
676 } else {
677
678 if (!aperf_mperf_unstable) {
679 fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname);
680 fprintf(stderr, "* Frequency results do not cover entire interval *\n");
681 fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n");
682
683 aperf_mperf_unstable = 1;
684 }
685 /*
686 * mperf delta is likely a huge "positive" number
687 * can not use it for calculating c0 time
688 */
689 skip_c0 = 1;
690 skip_c1 = 1;
691 }
692
693
694 if (use_c1_residency_msr) {
695 /*
696 * Some models have a dedicated C1 residency MSR,
697 * which should be more accurate than the derivation below.
698 */
699 } else {
700 /*
701 * As counter collection is not atomic,
702 * it is possible for mperf's non-halted cycles + idle states
703 * to exceed TSC's all cycles: show c1 = 0% in that case.
704 */
705 if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
706 old->c1 = 0;
707 else {
708 /* normal case, derive c1 */
709 old->c1 = old->tsc - old->mperf - core_delta->c3
710 - core_delta->c6 - core_delta->c7;
711 }
712 }
713
714 if (old->mperf == 0) {
715 if (verbose > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id);
716 old->mperf = 1; /* divide by 0 protection */
717 }
718
719 old->extra_delta32 = new->extra_delta32 - old->extra_delta32;
720 old->extra_delta32 &= 0xFFFFFFFF;
721
722 old->extra_delta64 = new->extra_delta64 - old->extra_delta64;
723
724 /*
725 * Extra MSR is just a snapshot, simply copy latest w/o subtracting
726 */
727 old->extra_msr32 = new->extra_msr32;
728 old->extra_msr64 = new->extra_msr64;
729
730 if (do_smi)
731 old->smi_count = new->smi_count - old->smi_count;
732 }
733
734 int delta_cpu(struct thread_data *t, struct core_data *c,
735 struct pkg_data *p, struct thread_data *t2,
736 struct core_data *c2, struct pkg_data *p2)
737 {
738 /* calculate core delta only for 1st thread in core */
739 if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE)
740 delta_core(c, c2);
741
742 /* always calculate thread delta */
743 delta_thread(t, t2, c2); /* c2 is core delta */
744
745 /* calculate package delta only for 1st core in package */
746 if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)
747 delta_package(p, p2);
748
749 return 0;
750 }
751
752 void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
753 {
754 t->tsc = 0;
755 t->aperf = 0;
756 t->mperf = 0;
757 t->c1 = 0;
758
759 t->smi_count = 0;
760 t->extra_delta32 = 0;
761 t->extra_delta64 = 0;
762
763 /* tells format_counters to dump all fields from this set */
764 t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE;
765
766 c->c3 = 0;
767 c->c6 = 0;
768 c->c7 = 0;
769 c->core_temp_c = 0;
770
771 p->pc2 = 0;
772 p->pc3 = 0;
773 p->pc6 = 0;
774 p->pc7 = 0;
775 p->pc8 = 0;
776 p->pc9 = 0;
777 p->pc10 = 0;
778
779 p->energy_pkg = 0;
780 p->energy_dram = 0;
781 p->energy_cores = 0;
782 p->energy_gfx = 0;
783 p->rapl_pkg_perf_status = 0;
784 p->rapl_dram_perf_status = 0;
785 p->pkg_temp_c = 0;
786 }
787 int sum_counters(struct thread_data *t, struct core_data *c,
788 struct pkg_data *p)
789 {
790 average.threads.tsc += t->tsc;
791 average.threads.aperf += t->aperf;
792 average.threads.mperf += t->mperf;
793 average.threads.c1 += t->c1;
794
795 average.threads.extra_delta32 += t->extra_delta32;
796 average.threads.extra_delta64 += t->extra_delta64;
797
798 /* sum per-core values only for 1st thread in core */
799 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
800 return 0;
801
802 average.cores.c3 += c->c3;
803 average.cores.c6 += c->c6;
804 average.cores.c7 += c->c7;
805
806 average.cores.core_temp_c = MAX(average.cores.core_temp_c, c->core_temp_c);
807
808 /* sum per-pkg values only for 1st core in pkg */
809 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
810 return 0;
811
812 average.packages.pc2 += p->pc2;
813 average.packages.pc3 += p->pc3;
814 average.packages.pc6 += p->pc6;
815 average.packages.pc7 += p->pc7;
816 average.packages.pc8 += p->pc8;
817 average.packages.pc9 += p->pc9;
818 average.packages.pc10 += p->pc10;
819
820 average.packages.energy_pkg += p->energy_pkg;
821 average.packages.energy_dram += p->energy_dram;
822 average.packages.energy_cores += p->energy_cores;
823 average.packages.energy_gfx += p->energy_gfx;
824
825 average.packages.pkg_temp_c = MAX(average.packages.pkg_temp_c, p->pkg_temp_c);
826
827 average.packages.rapl_pkg_perf_status += p->rapl_pkg_perf_status;
828 average.packages.rapl_dram_perf_status += p->rapl_dram_perf_status;
829 return 0;
830 }
831 /*
832 * sum the counters for all cpus in the system
833 * compute the weighted average
834 */
835 void compute_average(struct thread_data *t, struct core_data *c,
836 struct pkg_data *p)
837 {
838 clear_counters(&average.threads, &average.cores, &average.packages);
839
840 for_all_cpus(sum_counters, t, c, p);
841
842 average.threads.tsc /= topo.num_cpus;
843 average.threads.aperf /= topo.num_cpus;
844 average.threads.mperf /= topo.num_cpus;
845 average.threads.c1 /= topo.num_cpus;
846
847 average.threads.extra_delta32 /= topo.num_cpus;
848 average.threads.extra_delta32 &= 0xFFFFFFFF;
849
850 average.threads.extra_delta64 /= topo.num_cpus;
851
852 average.cores.c3 /= topo.num_cores;
853 average.cores.c6 /= topo.num_cores;
854 average.cores.c7 /= topo.num_cores;
855
856 average.packages.pc2 /= topo.num_packages;
857 average.packages.pc3 /= topo.num_packages;
858 average.packages.pc6 /= topo.num_packages;
859 average.packages.pc7 /= topo.num_packages;
860
861 average.packages.pc8 /= topo.num_packages;
862 average.packages.pc9 /= topo.num_packages;
863 average.packages.pc10 /= topo.num_packages;
864 }
865
866 static unsigned long long rdtsc(void)
867 {
868 unsigned int low, high;
869
870 asm volatile("rdtsc" : "=a" (low), "=d" (high));
871
872 return low | ((unsigned long long)high) << 32;
873 }
874
875
876 /*
877 * get_counters(...)
878 * migrate to cpu
879 * acquire and record local counters for that cpu
880 */
881 int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
882 {
883 int cpu = t->cpu_id;
884 unsigned long long msr;
885
886 if (cpu_migrate(cpu)) {
887 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
888 return -1;
889 }
890
891 t->tsc = rdtsc(); /* we are running on local CPU of interest */
892
893 if (has_aperf) {
894 if (get_msr(cpu, MSR_IA32_APERF, &t->aperf))
895 return -3;
896 if (get_msr(cpu, MSR_IA32_MPERF, &t->mperf))
897 return -4;
898 }
899
900 if (do_smi) {
901 if (get_msr(cpu, MSR_SMI_COUNT, &msr))
902 return -5;
903 t->smi_count = msr & 0xFFFFFFFF;
904 }
905 if (extra_delta_offset32) {
906 if (get_msr(cpu, extra_delta_offset32, &msr))
907 return -5;
908 t->extra_delta32 = msr & 0xFFFFFFFF;
909 }
910
911 if (extra_delta_offset64)
912 if (get_msr(cpu, extra_delta_offset64, &t->extra_delta64))
913 return -5;
914
915 if (extra_msr_offset32) {
916 if (get_msr(cpu, extra_msr_offset32, &msr))
917 return -5;
918 t->extra_msr32 = msr & 0xFFFFFFFF;
919 }
920
921 if (extra_msr_offset64)
922 if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
923 return -5;
924
925 if (use_c1_residency_msr) {
926 if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
927 return -6;
928 }
929
930 /* collect core counters only for 1st thread in core */
931 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
932 return 0;
933
934 if (do_nhm_cstates && !do_slm_cstates) {
935 if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
936 return -6;
937 }
938
939 if (do_nhm_cstates) {
940 if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
941 return -7;
942 }
943
944 if (do_snb_cstates)
945 if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7))
946 return -8;
947
948 if (do_dts) {
949 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
950 return -9;
951 c->core_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
952 }
953
954
955 /* collect package counters only for 1st core in package */
956 if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
957 return 0;
958
959 if (do_nhm_cstates && !do_slm_cstates) {
960 if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
961 return -9;
962 if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
963 return -10;
964 }
965 if (do_snb_cstates) {
966 if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2))
967 return -11;
968 if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7))
969 return -12;
970 }
971 if (do_c8_c9_c10) {
972 if (get_msr(cpu, MSR_PKG_C8_RESIDENCY, &p->pc8))
973 return -13;
974 if (get_msr(cpu, MSR_PKG_C9_RESIDENCY, &p->pc9))
975 return -13;
976 if (get_msr(cpu, MSR_PKG_C10_RESIDENCY, &p->pc10))
977 return -13;
978 }
979 if (do_rapl & RAPL_PKG) {
980 if (get_msr(cpu, MSR_PKG_ENERGY_STATUS, &msr))
981 return -13;
982 p->energy_pkg = msr & 0xFFFFFFFF;
983 }
984 if (do_rapl & RAPL_CORES) {
985 if (get_msr(cpu, MSR_PP0_ENERGY_STATUS, &msr))
986 return -14;
987 p->energy_cores = msr & 0xFFFFFFFF;
988 }
989 if (do_rapl & RAPL_DRAM) {
990 if (get_msr(cpu, MSR_DRAM_ENERGY_STATUS, &msr))
991 return -15;
992 p->energy_dram = msr & 0xFFFFFFFF;
993 }
994 if (do_rapl & RAPL_GFX) {
995 if (get_msr(cpu, MSR_PP1_ENERGY_STATUS, &msr))
996 return -16;
997 p->energy_gfx = msr & 0xFFFFFFFF;
998 }
999 if (do_rapl & RAPL_PKG_PERF_STATUS) {
1000 if (get_msr(cpu, MSR_PKG_PERF_STATUS, &msr))
1001 return -16;
1002 p->rapl_pkg_perf_status = msr & 0xFFFFFFFF;
1003 }
1004 if (do_rapl & RAPL_DRAM_PERF_STATUS) {
1005 if (get_msr(cpu, MSR_DRAM_PERF_STATUS, &msr))
1006 return -16;
1007 p->rapl_dram_perf_status = msr & 0xFFFFFFFF;
1008 }
1009 if (do_ptm) {
1010 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
1011 return -17;
1012 p->pkg_temp_c = tcc_activation_temp - ((msr >> 16) & 0x7F);
1013 }
1014 return 0;
1015 }
1016
1017 void print_verbose_header(void)
1018 {
1019 unsigned long long msr;
1020 unsigned int ratio;
1021
1022 if (!do_nehalem_platform_info)
1023 return;
1024
1025 get_msr(0, MSR_NHM_PLATFORM_INFO, &msr);
1026
1027 fprintf(stderr, "cpu0: MSR_NHM_PLATFORM_INFO: 0x%08llx\n", msr);
1028
1029 ratio = (msr >> 40) & 0xFF;
1030 fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n",
1031 ratio, bclk, ratio * bclk);
1032
1033 ratio = (msr >> 8) & 0xFF;
1034 fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n",
1035 ratio, bclk, ratio * bclk);
1036
1037 get_msr(0, MSR_IA32_POWER_CTL, &msr);
1038 fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
1039 msr, msr & 0x2 ? "EN" : "DIS");
1040
1041 if (!do_ivt_turbo_ratio_limit)
1042 goto print_nhm_turbo_ratio_limits;
1043
1044 get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr);
1045
1046 fprintf(stderr, "cpu0: MSR_IVT_TURBO_RATIO_LIMIT: 0x%08llx\n", msr);
1047
1048 ratio = (msr >> 56) & 0xFF;
1049 if (ratio)
1050 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n",
1051 ratio, bclk, ratio * bclk);
1052
1053 ratio = (msr >> 48) & 0xFF;
1054 if (ratio)
1055 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n",
1056 ratio, bclk, ratio * bclk);
1057
1058 ratio = (msr >> 40) & 0xFF;
1059 if (ratio)
1060 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n",
1061 ratio, bclk, ratio * bclk);
1062
1063 ratio = (msr >> 32) & 0xFF;
1064 if (ratio)
1065 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n",
1066 ratio, bclk, ratio * bclk);
1067
1068 ratio = (msr >> 24) & 0xFF;
1069 if (ratio)
1070 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n",
1071 ratio, bclk, ratio * bclk);
1072
1073 ratio = (msr >> 16) & 0xFF;
1074 if (ratio)
1075 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n",
1076 ratio, bclk, ratio * bclk);
1077
1078 ratio = (msr >> 8) & 0xFF;
1079 if (ratio)
1080 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n",
1081 ratio, bclk, ratio * bclk);
1082
1083 ratio = (msr >> 0) & 0xFF;
1084 if (ratio)
1085 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n",
1086 ratio, bclk, ratio * bclk);
1087
1088 print_nhm_turbo_ratio_limits:
1089 get_msr(0, MSR_NHM_SNB_PKG_CST_CFG_CTL, &msr);
1090
1091 #define SNB_C1_AUTO_UNDEMOTE (1UL << 27)
1092 #define SNB_C3_AUTO_UNDEMOTE (1UL << 28)
1093
1094 fprintf(stderr, "cpu0: MSR_NHM_SNB_PKG_CST_CFG_CTL: 0x%08llx", msr);
1095
1096 fprintf(stderr, " (%s%s%s%s%slocked: pkg-cstate-limit=%d: ",
1097 (msr & SNB_C3_AUTO_UNDEMOTE) ? "UNdemote-C3, " : "",
1098 (msr & SNB_C1_AUTO_UNDEMOTE) ? "UNdemote-C1, " : "",
1099 (msr & NHM_C3_AUTO_DEMOTE) ? "demote-C3, " : "",
1100 (msr & NHM_C1_AUTO_DEMOTE) ? "demote-C1, " : "",
1101 (msr & (1 << 15)) ? "" : "UN",
1102 (unsigned int)msr & 7);
1103
1104
1105 switch(msr & 0x7) {
1106 case 0:
1107 fprintf(stderr, do_slm_cstates ? "no pkg states" : "pc0");
1108 break;
1109 case 1:
1110 fprintf(stderr, do_slm_cstates ? "no pkg states" : do_snb_cstates ? "pc2" : "pc0");
1111 break;
1112 case 2:
1113 fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc6-noret" : "pc3");
1114 break;
1115 case 3:
1116 fprintf(stderr, do_slm_cstates ? "invalid" : "pc6");
1117 break;
1118 case 4:
1119 fprintf(stderr, do_slm_cstates ? "pc4" : "pc7");
1120 break;
1121 case 5:
1122 fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc7s" : "invalid");
1123 break;
1124 case 6:
1125 fprintf(stderr, do_slm_cstates ? "pc6" : "invalid");
1126 break;
1127 case 7:
1128 fprintf(stderr, do_slm_cstates ? "pc7" : "unlimited");
1129 break;
1130 default:
1131 fprintf(stderr, "invalid");
1132 }
1133 fprintf(stderr, ")\n");
1134
1135 if (!do_nehalem_turbo_ratio_limit)
1136 return;
1137
1138 get_msr(0, MSR_NHM_TURBO_RATIO_LIMIT, &msr);
1139
1140 fprintf(stderr, "cpu0: MSR_NHM_TURBO_RATIO_LIMIT: 0x%08llx\n", msr);
1141
1142 ratio = (msr >> 56) & 0xFF;
1143 if (ratio)
1144 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n",
1145 ratio, bclk, ratio * bclk);
1146
1147 ratio = (msr >> 48) & 0xFF;
1148 if (ratio)
1149 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n",
1150 ratio, bclk, ratio * bclk);
1151
1152 ratio = (msr >> 40) & 0xFF;
1153 if (ratio)
1154 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n",
1155 ratio, bclk, ratio * bclk);
1156
1157 ratio = (msr >> 32) & 0xFF;
1158 if (ratio)
1159 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n",
1160 ratio, bclk, ratio * bclk);
1161
1162 ratio = (msr >> 24) & 0xFF;
1163 if (ratio)
1164 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n",
1165 ratio, bclk, ratio * bclk);
1166
1167 ratio = (msr >> 16) & 0xFF;
1168 if (ratio)
1169 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n",
1170 ratio, bclk, ratio * bclk);
1171
1172 ratio = (msr >> 8) & 0xFF;
1173 if (ratio)
1174 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n",
1175 ratio, bclk, ratio * bclk);
1176
1177 ratio = (msr >> 0) & 0xFF;
1178 if (ratio)
1179 fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n",
1180 ratio, bclk, ratio * bclk);
1181 }
1182
1183 void free_all_buffers(void)
1184 {
1185 CPU_FREE(cpu_present_set);
1186 cpu_present_set = NULL;
1187 cpu_present_set = 0;
1188
1189 CPU_FREE(cpu_affinity_set);
1190 cpu_affinity_set = NULL;
1191 cpu_affinity_setsize = 0;
1192
1193 free(thread_even);
1194 free(core_even);
1195 free(package_even);
1196
1197 thread_even = NULL;
1198 core_even = NULL;
1199 package_even = NULL;
1200
1201 free(thread_odd);
1202 free(core_odd);
1203 free(package_odd);
1204
1205 thread_odd = NULL;
1206 core_odd = NULL;
1207 package_odd = NULL;
1208
1209 free(output_buffer);
1210 output_buffer = NULL;
1211 outp = NULL;
1212 }
1213
1214 /*
1215 * Open a file, and exit on failure
1216 */
1217 FILE *fopen_or_die(const char *path, const char *mode)
1218 {
1219 FILE *filep = fopen(path, "r");
1220 if (!filep)
1221 err(1, "%s: open failed", path);
1222 return filep;
1223 }
1224
1225 /*
1226 * Parse a file containing a single int.
1227 */
1228 int parse_int_file(const char *fmt, ...)
1229 {
1230 va_list args;
1231 char path[PATH_MAX];
1232 FILE *filep;
1233 int value;
1234
1235 va_start(args, fmt);
1236 vsnprintf(path, sizeof(path), fmt, args);
1237 va_end(args);
1238 filep = fopen_or_die(path, "r");
1239 if (fscanf(filep, "%d", &value) != 1)
1240 err(1, "%s: failed to parse number from file", path);
1241 fclose(filep);
1242 return value;
1243 }
1244
1245 /*
1246 * cpu_is_first_sibling_in_core(cpu)
1247 * return 1 if given CPU is 1st HT sibling in the core
1248 */
1249 int cpu_is_first_sibling_in_core(int cpu)
1250 {
1251 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1252 }
1253
1254 /*
1255 * cpu_is_first_core_in_package(cpu)
1256 * return 1 if given CPU is 1st core in package
1257 */
1258 int cpu_is_first_core_in_package(int cpu)
1259 {
1260 return cpu == parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu);
1261 }
1262
1263 int get_physical_package_id(int cpu)
1264 {
1265 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu);
1266 }
1267
1268 int get_core_id(int cpu)
1269 {
1270 return parse_int_file("/sys/devices/system/cpu/cpu%d/topology/core_id", cpu);
1271 }
1272
1273 int get_num_ht_siblings(int cpu)
1274 {
1275 char path[80];
1276 FILE *filep;
1277 int sib1, sib2;
1278 int matches;
1279 char character;
1280
1281 sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu);
1282 filep = fopen_or_die(path, "r");
1283 /*
1284 * file format:
1285 * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4)
1286 * otherwinse 1 sibling (self).
1287 */
1288 matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2);
1289
1290 fclose(filep);
1291
1292 if (matches == 3)
1293 return 2;
1294 else
1295 return 1;
1296 }
1297
1298 /*
1299 * run func(thread, core, package) in topology order
1300 * skip non-present cpus
1301 */
1302
1303 int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *,
1304 struct pkg_data *, struct thread_data *, struct core_data *,
1305 struct pkg_data *), struct thread_data *thread_base,
1306 struct core_data *core_base, struct pkg_data *pkg_base,
1307 struct thread_data *thread_base2, struct core_data *core_base2,
1308 struct pkg_data *pkg_base2)
1309 {
1310 int retval, pkg_no, core_no, thread_no;
1311
1312 for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) {
1313 for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) {
1314 for (thread_no = 0; thread_no <
1315 topo.num_threads_per_core; ++thread_no) {
1316 struct thread_data *t, *t2;
1317 struct core_data *c, *c2;
1318 struct pkg_data *p, *p2;
1319
1320 t = GET_THREAD(thread_base, thread_no, core_no, pkg_no);
1321
1322 if (cpu_is_not_present(t->cpu_id))
1323 continue;
1324
1325 t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no);
1326
1327 c = GET_CORE(core_base, core_no, pkg_no);
1328 c2 = GET_CORE(core_base2, core_no, pkg_no);
1329
1330 p = GET_PKG(pkg_base, pkg_no);
1331 p2 = GET_PKG(pkg_base2, pkg_no);
1332
1333 retval = func(t, c, p, t2, c2, p2);
1334 if (retval)
1335 return retval;
1336 }
1337 }
1338 }
1339 return 0;
1340 }
1341
1342 /*
1343 * run func(cpu) on every cpu in /proc/stat
1344 * return max_cpu number
1345 */
1346 int for_all_proc_cpus(int (func)(int))
1347 {
1348 FILE *fp;
1349 int cpu_num;
1350 int retval;
1351
1352 fp = fopen_or_die(proc_stat, "r");
1353
1354 retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n");
1355 if (retval != 0)
1356 err(1, "%s: failed to parse format", proc_stat);
1357
1358 while (1) {
1359 retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num);
1360 if (retval != 1)
1361 break;
1362
1363 retval = func(cpu_num);
1364 if (retval) {
1365 fclose(fp);
1366 return(retval);
1367 }
1368 }
1369 fclose(fp);
1370 return 0;
1371 }
1372
1373 void re_initialize(void)
1374 {
1375 free_all_buffers();
1376 setup_all_buffers();
1377 printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus);
1378 }
1379
1380
1381 /*
1382 * count_cpus()
1383 * remember the last one seen, it will be the max
1384 */
1385 int count_cpus(int cpu)
1386 {
1387 if (topo.max_cpu_num < cpu)
1388 topo.max_cpu_num = cpu;
1389
1390 topo.num_cpus += 1;
1391 return 0;
1392 }
1393 int mark_cpu_present(int cpu)
1394 {
1395 CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set);
1396 return 0;
1397 }
1398
1399 void turbostat_loop()
1400 {
1401 int retval;
1402 int restarted = 0;
1403
1404 restart:
1405 restarted++;
1406
1407 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1408 if (retval < -1) {
1409 exit(retval);
1410 } else if (retval == -1) {
1411 if (restarted > 1) {
1412 exit(retval);
1413 }
1414 re_initialize();
1415 goto restart;
1416 }
1417 restarted = 0;
1418 gettimeofday(&tv_even, (struct timezone *)NULL);
1419
1420 while (1) {
1421 if (for_all_proc_cpus(cpu_is_not_present)) {
1422 re_initialize();
1423 goto restart;
1424 }
1425 sleep(interval_sec);
1426 retval = for_all_cpus(get_counters, ODD_COUNTERS);
1427 if (retval < -1) {
1428 exit(retval);
1429 } else if (retval == -1) {
1430 re_initialize();
1431 goto restart;
1432 }
1433 gettimeofday(&tv_odd, (struct timezone *)NULL);
1434 timersub(&tv_odd, &tv_even, &tv_delta);
1435 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
1436 compute_average(EVEN_COUNTERS);
1437 format_all_counters(EVEN_COUNTERS);
1438 flush_stdout();
1439 sleep(interval_sec);
1440 retval = for_all_cpus(get_counters, EVEN_COUNTERS);
1441 if (retval < -1) {
1442 exit(retval);
1443 } else if (retval == -1) {
1444 re_initialize();
1445 goto restart;
1446 }
1447 gettimeofday(&tv_even, (struct timezone *)NULL);
1448 timersub(&tv_even, &tv_odd, &tv_delta);
1449 for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS);
1450 compute_average(ODD_COUNTERS);
1451 format_all_counters(ODD_COUNTERS);
1452 flush_stdout();
1453 }
1454 }
1455
1456 void check_dev_msr()
1457 {
1458 struct stat sb;
1459
1460 if (stat("/dev/cpu/0/msr", &sb))
1461 err(-5, "no /dev/cpu/0/msr\n"
1462 "Try \"# modprobe msr\"");
1463 }
1464
1465 void check_super_user()
1466 {
1467 if (getuid() != 0)
1468 errx(-6, "must be root");
1469 }
1470
1471 int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model)
1472 {
1473 if (!genuine_intel)
1474 return 0;
1475
1476 if (family != 6)
1477 return 0;
1478
1479 switch (model) {
1480 case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */
1481 case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */
1482 case 0x1F: /* Core i7 and i5 Processor - Nehalem */
1483 case 0x25: /* Westmere Client - Clarkdale, Arrandale */
1484 case 0x2C: /* Westmere EP - Gulftown */
1485 case 0x2A: /* SNB */
1486 case 0x2D: /* SNB Xeon */
1487 case 0x3A: /* IVB */
1488 case 0x3E: /* IVB Xeon */
1489 case 0x3C: /* HSW */
1490 case 0x3F: /* HSX */
1491 case 0x45: /* HSW */
1492 case 0x46: /* HSW */
1493 case 0x37: /* BYT */
1494 case 0x4D: /* AVN */
1495 case 0x3D: /* BDW */
1496 case 0x4F: /* BDX */
1497 case 0x56: /* BDX-DE */
1498 return 1;
1499 case 0x2E: /* Nehalem-EX Xeon - Beckton */
1500 case 0x2F: /* Westmere-EX Xeon - Eagleton */
1501 default:
1502 return 0;
1503 }
1504 }
1505 int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
1506 {
1507 if (!genuine_intel)
1508 return 0;
1509
1510 if (family != 6)
1511 return 0;
1512
1513 switch (model) {
1514 case 0x3E: /* IVB Xeon */
1515 return 1;
1516 default:
1517 return 0;
1518 }
1519 }
1520
1521 /*
1522 * print_epb()
1523 * Decode the ENERGY_PERF_BIAS MSR
1524 */
1525 int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1526 {
1527 unsigned long long msr;
1528 char *epb_string;
1529 int cpu;
1530
1531 if (!has_epb)
1532 return 0;
1533
1534 cpu = t->cpu_id;
1535
1536 /* EPB is per-package */
1537 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1538 return 0;
1539
1540 if (cpu_migrate(cpu)) {
1541 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1542 return -1;
1543 }
1544
1545 if (get_msr(cpu, MSR_IA32_ENERGY_PERF_BIAS, &msr))
1546 return 0;
1547
1548 switch (msr & 0x7) {
1549 case ENERGY_PERF_BIAS_PERFORMANCE:
1550 epb_string = "performance";
1551 break;
1552 case ENERGY_PERF_BIAS_NORMAL:
1553 epb_string = "balanced";
1554 break;
1555 case ENERGY_PERF_BIAS_POWERSAVE:
1556 epb_string = "powersave";
1557 break;
1558 default:
1559 epb_string = "custom";
1560 break;
1561 }
1562 fprintf(stderr, "cpu%d: MSR_IA32_ENERGY_PERF_BIAS: 0x%08llx (%s)\n", cpu, msr, epb_string);
1563
1564 return 0;
1565 }
1566
1567 #define RAPL_POWER_GRANULARITY 0x7FFF /* 15 bit power granularity */
1568 #define RAPL_TIME_GRANULARITY 0x3F /* 6 bit time granularity */
1569
1570 double get_tdp(model)
1571 {
1572 unsigned long long msr;
1573
1574 if (do_rapl & RAPL_PKG_POWER_INFO)
1575 if (!get_msr(0, MSR_PKG_POWER_INFO, &msr))
1576 return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
1577
1578 switch (model) {
1579 case 0x37:
1580 case 0x4D:
1581 return 30.0;
1582 default:
1583 return 135.0;
1584 }
1585 }
1586
1587
1588 /*
1589 * rapl_probe()
1590 *
1591 * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
1592 */
1593 void rapl_probe(unsigned int family, unsigned int model)
1594 {
1595 unsigned long long msr;
1596 unsigned int time_unit;
1597 double tdp;
1598
1599 if (!genuine_intel)
1600 return;
1601
1602 if (family != 6)
1603 return;
1604
1605 switch (model) {
1606 case 0x2A:
1607 case 0x3A:
1608 case 0x3C: /* HSW */
1609 case 0x45: /* HSW */
1610 case 0x46: /* HSW */
1611 case 0x3D: /* BDW */
1612 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
1613 break;
1614 case 0x3F: /* HSX */
1615 case 0x4F: /* BDX */
1616 case 0x56: /* BDX-DE */
1617 do_rapl = RAPL_PKG | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_PKG_POWER_INFO;
1618 break;
1619 case 0x2D:
1620 case 0x3E:
1621 do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO;
1622 break;
1623 case 0x37: /* BYT */
1624 case 0x4D: /* AVN */
1625 do_rapl = RAPL_PKG | RAPL_CORES ;
1626 break;
1627 default:
1628 return;
1629 }
1630
1631 /* units on package 0, verify later other packages match */
1632 if (get_msr(0, MSR_RAPL_POWER_UNIT, &msr))
1633 return;
1634
1635 rapl_power_units = 1.0 / (1 << (msr & 0xF));
1636 if (model == 0x37)
1637 rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
1638 else
1639 rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
1640
1641 time_unit = msr >> 16 & 0xF;
1642 if (time_unit == 0)
1643 time_unit = 0xA;
1644
1645 rapl_time_units = 1.0 / (1 << (time_unit));
1646
1647 tdp = get_tdp(model);
1648
1649 rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
1650 if (verbose)
1651 fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
1652
1653 return;
1654 }
1655
1656 int print_thermal(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1657 {
1658 unsigned long long msr;
1659 unsigned int dts;
1660 int cpu;
1661
1662 if (!(do_dts || do_ptm))
1663 return 0;
1664
1665 cpu = t->cpu_id;
1666
1667 /* DTS is per-core, no need to print for each thread */
1668 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
1669 return 0;
1670
1671 if (cpu_migrate(cpu)) {
1672 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1673 return -1;
1674 }
1675
1676 if (do_ptm && (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) {
1677 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_STATUS, &msr))
1678 return 0;
1679
1680 dts = (msr >> 16) & 0x7F;
1681 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_STATUS: 0x%08llx (%d C)\n",
1682 cpu, msr, tcc_activation_temp - dts);
1683
1684 #ifdef THERM_DEBUG
1685 if (get_msr(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &msr))
1686 return 0;
1687
1688 dts = (msr >> 16) & 0x7F;
1689 dts2 = (msr >> 8) & 0x7F;
1690 fprintf(stderr, "cpu%d: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
1691 cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
1692 #endif
1693 }
1694
1695
1696 if (do_dts) {
1697 unsigned int resolution;
1698
1699 if (get_msr(cpu, MSR_IA32_THERM_STATUS, &msr))
1700 return 0;
1701
1702 dts = (msr >> 16) & 0x7F;
1703 resolution = (msr >> 27) & 0xF;
1704 fprintf(stderr, "cpu%d: MSR_IA32_THERM_STATUS: 0x%08llx (%d C +/- %d)\n",
1705 cpu, msr, tcc_activation_temp - dts, resolution);
1706
1707 #ifdef THERM_DEBUG
1708 if (get_msr(cpu, MSR_IA32_THERM_INTERRUPT, &msr))
1709 return 0;
1710
1711 dts = (msr >> 16) & 0x7F;
1712 dts2 = (msr >> 8) & 0x7F;
1713 fprintf(stderr, "cpu%d: MSR_IA32_THERM_INTERRUPT: 0x%08llx (%d C, %d C)\n",
1714 cpu, msr, tcc_activation_temp - dts, tcc_activation_temp - dts2);
1715 #endif
1716 }
1717
1718 return 0;
1719 }
1720
1721 void print_power_limit_msr(int cpu, unsigned long long msr, char *label)
1722 {
1723 fprintf(stderr, "cpu%d: %s: %sabled (%f Watts, %f sec, clamp %sabled)\n",
1724 cpu, label,
1725 ((msr >> 15) & 1) ? "EN" : "DIS",
1726 ((msr >> 0) & 0x7FFF) * rapl_power_units,
1727 (1.0 + (((msr >> 22) & 0x3)/4.0)) * (1 << ((msr >> 17) & 0x1F)) * rapl_time_units,
1728 (((msr >> 16) & 1) ? "EN" : "DIS"));
1729
1730 return;
1731 }
1732
1733 int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1734 {
1735 unsigned long long msr;
1736 int cpu;
1737
1738 if (!do_rapl)
1739 return 0;
1740
1741 /* RAPL counters are per package, so print only for 1st thread/package */
1742 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1743 return 0;
1744
1745 cpu = t->cpu_id;
1746 if (cpu_migrate(cpu)) {
1747 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1748 return -1;
1749 }
1750
1751 if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
1752 return -1;
1753
1754 if (verbose) {
1755 fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
1756 "(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
1757 rapl_power_units, rapl_energy_units, rapl_time_units);
1758 }
1759 if (do_rapl & RAPL_PKG_POWER_INFO) {
1760
1761 if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
1762 return -5;
1763
1764
1765 fprintf(stderr, "cpu%d: MSR_PKG_POWER_INFO: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
1766 cpu, msr,
1767 ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
1768 ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
1769 ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
1770 ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
1771
1772 }
1773 if (do_rapl & RAPL_PKG) {
1774
1775 if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
1776 return -9;
1777
1778 fprintf(stderr, "cpu%d: MSR_PKG_POWER_LIMIT: 0x%08llx (%slocked)\n",
1779 cpu, msr, (msr >> 63) & 1 ? "": "UN");
1780
1781 print_power_limit_msr(cpu, msr, "PKG Limit #1");
1782 fprintf(stderr, "cpu%d: PKG Limit #2: %sabled (%f Watts, %f* sec, clamp %sabled)\n",
1783 cpu,
1784 ((msr >> 47) & 1) ? "EN" : "DIS",
1785 ((msr >> 32) & 0x7FFF) * rapl_power_units,
1786 (1.0 + (((msr >> 54) & 0x3)/4.0)) * (1 << ((msr >> 49) & 0x1F)) * rapl_time_units,
1787 ((msr >> 48) & 1) ? "EN" : "DIS");
1788 }
1789
1790 if (do_rapl & RAPL_DRAM) {
1791 if (get_msr(cpu, MSR_DRAM_POWER_INFO, &msr))
1792 return -6;
1793
1794
1795 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_INFO,: 0x%08llx (%.0f W TDP, RAPL %.0f - %.0f W, %f sec.)\n",
1796 cpu, msr,
1797 ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units,
1798 ((msr >> 16) & RAPL_POWER_GRANULARITY) * rapl_power_units,
1799 ((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
1800 ((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
1801
1802
1803 if (get_msr(cpu, MSR_DRAM_POWER_LIMIT, &msr))
1804 return -9;
1805 fprintf(stderr, "cpu%d: MSR_DRAM_POWER_LIMIT: 0x%08llx (%slocked)\n",
1806 cpu, msr, (msr >> 31) & 1 ? "": "UN");
1807
1808 print_power_limit_msr(cpu, msr, "DRAM Limit");
1809 }
1810 if (do_rapl & RAPL_CORE_POLICY) {
1811 if (verbose) {
1812 if (get_msr(cpu, MSR_PP0_POLICY, &msr))
1813 return -7;
1814
1815 fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
1816 }
1817 }
1818 if (do_rapl & RAPL_CORES) {
1819 if (verbose) {
1820
1821 if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
1822 return -9;
1823 fprintf(stderr, "cpu%d: MSR_PP0_POWER_LIMIT: 0x%08llx (%slocked)\n",
1824 cpu, msr, (msr >> 31) & 1 ? "": "UN");
1825 print_power_limit_msr(cpu, msr, "Cores Limit");
1826 }
1827 }
1828 if (do_rapl & RAPL_GFX) {
1829 if (verbose) {
1830 if (get_msr(cpu, MSR_PP1_POLICY, &msr))
1831 return -8;
1832
1833 fprintf(stderr, "cpu%d: MSR_PP1_POLICY: %lld\n", cpu, msr & 0xF);
1834
1835 if (get_msr(cpu, MSR_PP1_POWER_LIMIT, &msr))
1836 return -9;
1837 fprintf(stderr, "cpu%d: MSR_PP1_POWER_LIMIT: 0x%08llx (%slocked)\n",
1838 cpu, msr, (msr >> 31) & 1 ? "": "UN");
1839 print_power_limit_msr(cpu, msr, "GFX Limit");
1840 }
1841 }
1842 return 0;
1843 }
1844
1845
1846 int is_snb(unsigned int family, unsigned int model)
1847 {
1848 if (!genuine_intel)
1849 return 0;
1850
1851 switch (model) {
1852 case 0x2A:
1853 case 0x2D:
1854 case 0x3A: /* IVB */
1855 case 0x3E: /* IVB Xeon */
1856 case 0x3C: /* HSW */
1857 case 0x3F: /* HSW */
1858 case 0x45: /* HSW */
1859 case 0x46: /* HSW */
1860 case 0x3D: /* BDW */
1861 case 0x4F: /* BDX */
1862 case 0x56: /* BDX-DE */
1863 return 1;
1864 }
1865 return 0;
1866 }
1867
1868 int has_c8_c9_c10(unsigned int family, unsigned int model)
1869 {
1870 if (!genuine_intel)
1871 return 0;
1872
1873 switch (model) {
1874 case 0x45: /* HSW */
1875 case 0x3D: /* BDW */
1876 return 1;
1877 }
1878 return 0;
1879 }
1880
1881
1882 int is_slm(unsigned int family, unsigned int model)
1883 {
1884 if (!genuine_intel)
1885 return 0;
1886 switch (model) {
1887 case 0x37: /* BYT */
1888 case 0x4D: /* AVN */
1889 return 1;
1890 }
1891 return 0;
1892 }
1893
1894 #define SLM_BCLK_FREQS 5
1895 double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
1896
1897 double slm_bclk(void)
1898 {
1899 unsigned long long msr = 3;
1900 unsigned int i;
1901 double freq;
1902
1903 if (get_msr(0, MSR_FSB_FREQ, &msr))
1904 fprintf(stderr, "SLM BCLK: unknown\n");
1905
1906 i = msr & 0xf;
1907 if (i >= SLM_BCLK_FREQS) {
1908 fprintf(stderr, "SLM BCLK[%d] invalid\n", i);
1909 msr = 3;
1910 }
1911 freq = slm_freq_table[i];
1912
1913 fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq);
1914
1915 return freq;
1916 }
1917
1918 double discover_bclk(unsigned int family, unsigned int model)
1919 {
1920 if (is_snb(family, model))
1921 return 100.00;
1922 else if (is_slm(family, model))
1923 return slm_bclk();
1924 else
1925 return 133.33;
1926 }
1927
1928 /*
1929 * MSR_IA32_TEMPERATURE_TARGET indicates the temperature where
1930 * the Thermal Control Circuit (TCC) activates.
1931 * This is usually equal to tjMax.
1932 *
1933 * Older processors do not have this MSR, so there we guess,
1934 * but also allow cmdline over-ride with -T.
1935 *
1936 * Several MSR temperature values are in units of degrees-C
1937 * below this value, including the Digital Thermal Sensor (DTS),
1938 * Package Thermal Management Sensor (PTM), and thermal event thresholds.
1939 */
1940 int set_temperature_target(struct thread_data *t, struct core_data *c, struct pkg_data *p)
1941 {
1942 unsigned long long msr;
1943 unsigned int target_c_local;
1944 int cpu;
1945
1946 /* tcc_activation_temp is used only for dts or ptm */
1947 if (!(do_dts || do_ptm))
1948 return 0;
1949
1950 /* this is a per-package concept */
1951 if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE) || !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
1952 return 0;
1953
1954 cpu = t->cpu_id;
1955 if (cpu_migrate(cpu)) {
1956 fprintf(stderr, "Could not migrate to CPU %d\n", cpu);
1957 return -1;
1958 }
1959
1960 if (tcc_activation_temp_override != 0) {
1961 tcc_activation_temp = tcc_activation_temp_override;
1962 fprintf(stderr, "cpu%d: Using cmdline TCC Target (%d C)\n",
1963 cpu, tcc_activation_temp);
1964 return 0;
1965 }
1966
1967 /* Temperature Target MSR is Nehalem and newer only */
1968 if (!do_nehalem_platform_info)
1969 goto guess;
1970
1971 if (get_msr(0, MSR_IA32_TEMPERATURE_TARGET, &msr))
1972 goto guess;
1973
1974 target_c_local = (msr >> 16) & 0xFF;
1975
1976 if (verbose)
1977 fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
1978 cpu, msr, target_c_local);
1979
1980 if (!target_c_local)
1981 goto guess;
1982
1983 tcc_activation_temp = target_c_local;
1984
1985 return 0;
1986
1987 guess:
1988 tcc_activation_temp = TJMAX_DEFAULT;
1989 fprintf(stderr, "cpu%d: Guessing tjMax %d C, Please use -T to specify\n",
1990 cpu, tcc_activation_temp);
1991
1992 return 0;
1993 }
1994 void check_cpuid()
1995 {
1996 unsigned int eax, ebx, ecx, edx, max_level;
1997 unsigned int fms, family, model, stepping;
1998
1999 eax = ebx = ecx = edx = 0;
2000
2001 __get_cpuid(0, &max_level, &ebx, &ecx, &edx);
2002
2003 if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e)
2004 genuine_intel = 1;
2005
2006 if (verbose)
2007 fprintf(stderr, "CPUID(0): %.4s%.4s%.4s ",
2008 (char *)&ebx, (char *)&edx, (char *)&ecx);
2009
2010 __get_cpuid(1, &fms, &ebx, &ecx, &edx);
2011 family = (fms >> 8) & 0xf;
2012 model = (fms >> 4) & 0xf;
2013 stepping = fms & 0xf;
2014 if (family == 6 || family == 0xf)
2015 model += ((fms >> 16) & 0xf) << 4;
2016
2017 if (verbose)
2018 fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n",
2019 max_level, family, model, stepping, family, model, stepping);
2020
2021 if (!(edx & (1 << 5)))
2022 errx(1, "CPUID: no MSR");
2023
2024 /*
2025 * check max extended function levels of CPUID.
2026 * This is needed to check for invariant TSC.
2027 * This check is valid for both Intel and AMD.
2028 */
2029 ebx = ecx = edx = 0;
2030 __get_cpuid(0x80000000, &max_level, &ebx, &ecx, &edx);
2031
2032 if (max_level < 0x80000007)
2033 errx(1, "CPUID: no invariant TSC (max_level 0x%x)", max_level);
2034
2035 /*
2036 * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8
2037 * this check is valid for both Intel and AMD
2038 */
2039 __get_cpuid(0x80000007, &eax, &ebx, &ecx, &edx);
2040 has_invariant_tsc = edx & (1 << 8);
2041
2042 if (!has_invariant_tsc)
2043 errx(1, "No invariant TSC");
2044
2045 /*
2046 * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0
2047 * this check is valid for both Intel and AMD
2048 */
2049
2050 __get_cpuid(0x6, &eax, &ebx, &ecx, &edx);
2051 has_aperf = ecx & (1 << 0);
2052 do_dts = eax & (1 << 0);
2053 do_ptm = eax & (1 << 6);
2054 has_epb = ecx & (1 << 3);
2055
2056 if (verbose)
2057 fprintf(stderr, "CPUID(6): %s%s%s%s\n",
2058 has_aperf ? "APERF" : "No APERF!",
2059 do_dts ? ", DTS" : "",
2060 do_ptm ? ", PTM": "",
2061 has_epb ? ", EPB": "");
2062
2063 if (!has_aperf)
2064 errx(-1, "No APERF");
2065
2066 do_nehalem_platform_info = genuine_intel && has_invariant_tsc;
2067 do_nhm_cstates = genuine_intel; /* all Intel w/ non-stop TSC have NHM counters */
2068 do_smi = do_nhm_cstates;
2069 do_snb_cstates = is_snb(family, model);
2070 do_c8_c9_c10 = has_c8_c9_c10(family, model);
2071 do_slm_cstates = is_slm(family, model);
2072 bclk = discover_bclk(family, model);
2073
2074 do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model);
2075 do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model);
2076 rapl_probe(family, model);
2077
2078 return;
2079 }
2080
2081
2082 void usage()
2083 {
2084 errx(1, "%s: [-v][-R][-T][-p|-P|-S][-c MSR#][-C MSR#][-m MSR#][-M MSR#][-i interval_sec | command ...]\n",
2085 progname);
2086 }
2087
2088
2089 /*
2090 * in /dev/cpu/ return success for names that are numbers
2091 * ie. filter out ".", "..", "microcode".
2092 */
2093 int dir_filter(const struct dirent *dirp)
2094 {
2095 if (isdigit(dirp->d_name[0]))
2096 return 1;
2097 else
2098 return 0;
2099 }
2100
2101 int open_dev_cpu_msr(int dummy1)
2102 {
2103 return 0;
2104 }
2105
2106 void topology_probe()
2107 {
2108 int i;
2109 int max_core_id = 0;
2110 int max_package_id = 0;
2111 int max_siblings = 0;
2112 struct cpu_topology {
2113 int core_id;
2114 int physical_package_id;
2115 } *cpus;
2116
2117 /* Initialize num_cpus, max_cpu_num */
2118 topo.num_cpus = 0;
2119 topo.max_cpu_num = 0;
2120 for_all_proc_cpus(count_cpus);
2121 if (!summary_only && topo.num_cpus > 1)
2122 show_cpu = 1;
2123
2124 if (verbose > 1)
2125 fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num);
2126
2127 cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology));
2128 if (cpus == NULL)
2129 err(1, "calloc cpus");
2130
2131 /*
2132 * Allocate and initialize cpu_present_set
2133 */
2134 cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1));
2135 if (cpu_present_set == NULL)
2136 err(3, "CPU_ALLOC");
2137 cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2138 CPU_ZERO_S(cpu_present_setsize, cpu_present_set);
2139 for_all_proc_cpus(mark_cpu_present);
2140
2141 /*
2142 * Allocate and initialize cpu_affinity_set
2143 */
2144 cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1));
2145 if (cpu_affinity_set == NULL)
2146 err(3, "CPU_ALLOC");
2147 cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1));
2148 CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set);
2149
2150
2151 /*
2152 * For online cpus
2153 * find max_core_id, max_package_id
2154 */
2155 for (i = 0; i <= topo.max_cpu_num; ++i) {
2156 int siblings;
2157
2158 if (cpu_is_not_present(i)) {
2159 if (verbose > 1)
2160 fprintf(stderr, "cpu%d NOT PRESENT\n", i);
2161 continue;
2162 }
2163 cpus[i].core_id = get_core_id(i);
2164 if (cpus[i].core_id > max_core_id)
2165 max_core_id = cpus[i].core_id;
2166
2167 cpus[i].physical_package_id = get_physical_package_id(i);
2168 if (cpus[i].physical_package_id > max_package_id)
2169 max_package_id = cpus[i].physical_package_id;
2170
2171 siblings = get_num_ht_siblings(i);
2172 if (siblings > max_siblings)
2173 max_siblings = siblings;
2174 if (verbose > 1)
2175 fprintf(stderr, "cpu %d pkg %d core %d\n",
2176 i, cpus[i].physical_package_id, cpus[i].core_id);
2177 }
2178 topo.num_cores_per_pkg = max_core_id + 1;
2179 if (verbose > 1)
2180 fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n",
2181 max_core_id, topo.num_cores_per_pkg);
2182 if (!summary_only && topo.num_cores_per_pkg > 1)
2183 show_core = 1;
2184
2185 topo.num_packages = max_package_id + 1;
2186 if (verbose > 1)
2187 fprintf(stderr, "max_package_id %d, sizing for %d packages\n",
2188 max_package_id, topo.num_packages);
2189 if (!summary_only && topo.num_packages > 1)
2190 show_pkg = 1;
2191
2192 topo.num_threads_per_core = max_siblings;
2193 if (verbose > 1)
2194 fprintf(stderr, "max_siblings %d\n", max_siblings);
2195
2196 free(cpus);
2197 }
2198
2199 void
2200 allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p)
2201 {
2202 int i;
2203
2204 *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg *
2205 topo.num_packages, sizeof(struct thread_data));
2206 if (*t == NULL)
2207 goto error;
2208
2209 for (i = 0; i < topo.num_threads_per_core *
2210 topo.num_cores_per_pkg * topo.num_packages; i++)
2211 (*t)[i].cpu_id = -1;
2212
2213 *c = calloc(topo.num_cores_per_pkg * topo.num_packages,
2214 sizeof(struct core_data));
2215 if (*c == NULL)
2216 goto error;
2217
2218 for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++)
2219 (*c)[i].core_id = -1;
2220
2221 *p = calloc(topo.num_packages, sizeof(struct pkg_data));
2222 if (*p == NULL)
2223 goto error;
2224
2225 for (i = 0; i < topo.num_packages; i++)
2226 (*p)[i].package_id = i;
2227
2228 return;
2229 error:
2230 err(1, "calloc counters");
2231 }
2232 /*
2233 * init_counter()
2234 *
2235 * set cpu_id, core_num, pkg_num
2236 * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE
2237 *
2238 * increment topo.num_cores when 1st core in pkg seen
2239 */
2240 void init_counter(struct thread_data *thread_base, struct core_data *core_base,
2241 struct pkg_data *pkg_base, int thread_num, int core_num,
2242 int pkg_num, int cpu_id)
2243 {
2244 struct thread_data *t;
2245 struct core_data *c;
2246 struct pkg_data *p;
2247
2248 t = GET_THREAD(thread_base, thread_num, core_num, pkg_num);
2249 c = GET_CORE(core_base, core_num, pkg_num);
2250 p = GET_PKG(pkg_base, pkg_num);
2251
2252 t->cpu_id = cpu_id;
2253 if (thread_num == 0) {
2254 t->flags |= CPU_IS_FIRST_THREAD_IN_CORE;
2255 if (cpu_is_first_core_in_package(cpu_id))
2256 t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE;
2257 }
2258
2259 c->core_id = core_num;
2260 p->package_id = pkg_num;
2261 }
2262
2263
2264 int initialize_counters(int cpu_id)
2265 {
2266 int my_thread_id, my_core_id, my_package_id;
2267
2268 my_package_id = get_physical_package_id(cpu_id);
2269 my_core_id = get_core_id(cpu_id);
2270
2271 if (cpu_is_first_sibling_in_core(cpu_id)) {
2272 my_thread_id = 0;
2273 topo.num_cores++;
2274 } else {
2275 my_thread_id = 1;
2276 }
2277
2278 init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2279 init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id);
2280 return 0;
2281 }
2282
2283 void allocate_output_buffer()
2284 {
2285 output_buffer = calloc(1, (1 + topo.num_cpus) * 1024);
2286 outp = output_buffer;
2287 if (outp == NULL)
2288 err(-1, "calloc output buffer");
2289 }
2290
2291 void setup_all_buffers(void)
2292 {
2293 topology_probe();
2294 allocate_counters(&thread_even, &core_even, &package_even);
2295 allocate_counters(&thread_odd, &core_odd, &package_odd);
2296 allocate_output_buffer();
2297 for_all_proc_cpus(initialize_counters);
2298 }
2299
2300 void turbostat_init()
2301 {
2302 check_cpuid();
2303
2304 check_dev_msr();
2305 check_super_user();
2306
2307 setup_all_buffers();
2308
2309 if (verbose)
2310 print_verbose_header();
2311
2312 if (verbose)
2313 for_all_cpus(print_epb, ODD_COUNTERS);
2314
2315 if (verbose)
2316 for_all_cpus(print_rapl, ODD_COUNTERS);
2317
2318 for_all_cpus(set_temperature_target, ODD_COUNTERS);
2319
2320 if (verbose)
2321 for_all_cpus(print_thermal, ODD_COUNTERS);
2322 }
2323
2324 int fork_it(char **argv)
2325 {
2326 pid_t child_pid;
2327 int status;
2328
2329 status = for_all_cpus(get_counters, EVEN_COUNTERS);
2330 if (status)
2331 exit(status);
2332 /* clear affinity side-effect of get_counters() */
2333 sched_setaffinity(0, cpu_present_setsize, cpu_present_set);
2334 gettimeofday(&tv_even, (struct timezone *)NULL);
2335
2336 child_pid = fork();
2337 if (!child_pid) {
2338 /* child */
2339 execvp(argv[0], argv);
2340 } else {
2341
2342 /* parent */
2343 if (child_pid == -1)
2344 err(1, "fork");
2345
2346 signal(SIGINT, SIG_IGN);
2347 signal(SIGQUIT, SIG_IGN);
2348 if (waitpid(child_pid, &status, 0) == -1)
2349 err(status, "waitpid");
2350 }
2351 /*
2352 * n.b. fork_it() does not check for errors from for_all_cpus()
2353 * because re-starting is problematic when forking
2354 */
2355 for_all_cpus(get_counters, ODD_COUNTERS);
2356 gettimeofday(&tv_odd, (struct timezone *)NULL);
2357 timersub(&tv_odd, &tv_even, &tv_delta);
2358 for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS);
2359 compute_average(EVEN_COUNTERS);
2360 format_all_counters(EVEN_COUNTERS);
2361 flush_stderr();
2362
2363 fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0);
2364
2365 return status;
2366 }
2367
2368 int get_and_dump_counters(void)
2369 {
2370 int status;
2371
2372 status = for_all_cpus(get_counters, ODD_COUNTERS);
2373 if (status)
2374 return status;
2375
2376 status = for_all_cpus(dump_counters, ODD_COUNTERS);
2377 if (status)
2378 return status;
2379
2380 flush_stdout();
2381
2382 return status;
2383 }
2384
2385 void cmdline(int argc, char **argv)
2386 {
2387 int opt;
2388
2389 progname = argv[0];
2390
2391 while ((opt = getopt(argc, argv, "+pPsSvi:c:C:m:M:RJT:")) != -1) {
2392 switch (opt) {
2393 case 'p':
2394 show_core_only++;
2395 break;
2396 case 'P':
2397 show_pkg_only++;
2398 break;
2399 case 's':
2400 dump_only++;
2401 break;
2402 case 'S':
2403 summary_only++;
2404 break;
2405 case 'v':
2406 verbose++;
2407 break;
2408 case 'i':
2409 interval_sec = atoi(optarg);
2410 break;
2411 case 'c':
2412 sscanf(optarg, "%x", &extra_delta_offset32);
2413 break;
2414 case 'C':
2415 sscanf(optarg, "%x", &extra_delta_offset64);
2416 break;
2417 case 'm':
2418 sscanf(optarg, "%x", &extra_msr_offset32);
2419 break;
2420 case 'M':
2421 sscanf(optarg, "%x", &extra_msr_offset64);
2422 break;
2423 case 'R':
2424 rapl_verbose++;
2425 break;
2426 case 'T':
2427 tcc_activation_temp_override = atoi(optarg);
2428 break;
2429 case 'J':
2430 rapl_joules++;
2431 break;
2432
2433 default:
2434 usage();
2435 }
2436 }
2437 }
2438
2439 int main(int argc, char **argv)
2440 {
2441 cmdline(argc, argv);
2442
2443 if (verbose)
2444 fprintf(stderr, "turbostat v3.7 Feb 6, 2014"
2445 " - Len Brown <lenb@kernel.org>\n");
2446
2447 turbostat_init();
2448
2449 /* dump counters and exit */
2450 if (dump_only)
2451 return get_and_dump_counters();
2452
2453 /*
2454 * if any params left, it must be a command to fork
2455 */
2456 if (argc - optind)
2457 return fork_it(argv + optind);
2458 else
2459 turbostat_loop();
2460
2461 return 0;
2462 }
Linux with added FPC-III support