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Commit | Line | Data |
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103a8fea LB |
1 | /* |
2 | * turbostat -- show CPU frequency and C-state residency | |
3 | * on modern Intel turbo-capable processors. | |
4 | * | |
e23da037 | 5 | * Copyright (c) 2012 Intel Corporation. |
103a8fea LB |
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 | ||
88c3281f | 22 | #define _GNU_SOURCE |
103a8fea LB |
23 | #include <stdio.h> |
24 | #include <unistd.h> | |
25 | #include <sys/types.h> | |
26 | #include <sys/wait.h> | |
27 | #include <sys/stat.h> | |
28 | #include <sys/resource.h> | |
29 | #include <fcntl.h> | |
30 | #include <signal.h> | |
31 | #include <sys/time.h> | |
32 | #include <stdlib.h> | |
33 | #include <dirent.h> | |
34 | #include <string.h> | |
35 | #include <ctype.h> | |
88c3281f | 36 | #include <sched.h> |
103a8fea | 37 | |
103a8fea LB |
38 | #define MSR_NEHALEM_PLATFORM_INFO 0xCE |
39 | #define MSR_NEHALEM_TURBO_RATIO_LIMIT 0x1AD | |
6574a5d5 | 40 | #define MSR_IVT_TURBO_RATIO_LIMIT 0x1AE |
103a8fea LB |
41 | #define MSR_APERF 0xE8 |
42 | #define MSR_MPERF 0xE7 | |
43 | #define MSR_PKG_C2_RESIDENCY 0x60D /* SNB only */ | |
44 | #define MSR_PKG_C3_RESIDENCY 0x3F8 | |
45 | #define MSR_PKG_C6_RESIDENCY 0x3F9 | |
46 | #define MSR_PKG_C7_RESIDENCY 0x3FA /* SNB only */ | |
47 | #define MSR_CORE_C3_RESIDENCY 0x3FC | |
48 | #define MSR_CORE_C6_RESIDENCY 0x3FD | |
49 | #define MSR_CORE_C7_RESIDENCY 0x3FE /* SNB only */ | |
50 | ||
51 | char *proc_stat = "/proc/stat"; | |
52 | unsigned int interval_sec = 5; /* set with -i interval_sec */ | |
53 | unsigned int verbose; /* set with -v */ | |
e23da037 | 54 | unsigned int summary_only; /* set with -s */ |
103a8fea LB |
55 | unsigned int skip_c0; |
56 | unsigned int skip_c1; | |
57 | unsigned int do_nhm_cstates; | |
58 | unsigned int do_snb_cstates; | |
59 | unsigned int has_aperf; | |
60 | unsigned int units = 1000000000; /* Ghz etc */ | |
61 | unsigned int genuine_intel; | |
62 | unsigned int has_invariant_tsc; | |
63 | unsigned int do_nehalem_platform_info; | |
64 | unsigned int do_nehalem_turbo_ratio_limit; | |
6574a5d5 | 65 | unsigned int do_ivt_turbo_ratio_limit; |
2f32edf1 LB |
66 | unsigned int extra_msr_offset32; |
67 | unsigned int extra_msr_offset64; | |
103a8fea LB |
68 | double bclk; |
69 | unsigned int show_pkg; | |
70 | unsigned int show_core; | |
71 | unsigned int show_cpu; | |
c98d5d94 LB |
72 | unsigned int show_pkg_only; |
73 | unsigned int show_core_only; | |
74 | char *output_buffer, *outp; | |
103a8fea LB |
75 | |
76 | int aperf_mperf_unstable; | |
77 | int backwards_count; | |
78 | char *progname; | |
103a8fea | 79 | |
c98d5d94 LB |
80 | cpu_set_t *cpu_present_set, *cpu_affinity_set; |
81 | size_t cpu_present_setsize, cpu_affinity_setsize; | |
82 | ||
83 | struct thread_data { | |
84 | unsigned long long tsc; | |
85 | unsigned long long aperf; | |
86 | unsigned long long mperf; | |
87 | unsigned long long c1; /* derived */ | |
2f32edf1 LB |
88 | unsigned long long extra_msr64; |
89 | unsigned int extra_msr32; | |
c98d5d94 LB |
90 | unsigned int cpu_id; |
91 | unsigned int flags; | |
92 | #define CPU_IS_FIRST_THREAD_IN_CORE 0x2 | |
93 | #define CPU_IS_FIRST_CORE_IN_PACKAGE 0x4 | |
94 | } *thread_even, *thread_odd; | |
95 | ||
96 | struct core_data { | |
97 | unsigned long long c3; | |
98 | unsigned long long c6; | |
99 | unsigned long long c7; | |
100 | unsigned int core_id; | |
101 | } *core_even, *core_odd; | |
102 | ||
103 | struct pkg_data { | |
104 | unsigned long long pc2; | |
105 | unsigned long long pc3; | |
106 | unsigned long long pc6; | |
107 | unsigned long long pc7; | |
108 | unsigned int package_id; | |
109 | } *package_even, *package_odd; | |
110 | ||
111 | #define ODD_COUNTERS thread_odd, core_odd, package_odd | |
112 | #define EVEN_COUNTERS thread_even, core_even, package_even | |
113 | ||
114 | #define GET_THREAD(thread_base, thread_no, core_no, pkg_no) \ | |
115 | (thread_base + (pkg_no) * topo.num_cores_per_pkg * \ | |
116 | topo.num_threads_per_core + \ | |
117 | (core_no) * topo.num_threads_per_core + (thread_no)) | |
118 | #define GET_CORE(core_base, core_no, pkg_no) \ | |
119 | (core_base + (pkg_no) * topo.num_cores_per_pkg + (core_no)) | |
120 | #define GET_PKG(pkg_base, pkg_no) (pkg_base + pkg_no) | |
121 | ||
122 | struct system_summary { | |
123 | struct thread_data threads; | |
124 | struct core_data cores; | |
125 | struct pkg_data packages; | |
126 | } sum, average; | |
127 | ||
128 | ||
129 | struct topo_params { | |
130 | int num_packages; | |
131 | int num_cpus; | |
132 | int num_cores; | |
133 | int max_cpu_num; | |
134 | int num_cores_per_pkg; | |
135 | int num_threads_per_core; | |
136 | } topo; | |
137 | ||
138 | struct timeval tv_even, tv_odd, tv_delta; | |
139 | ||
140 | void setup_all_buffers(void); | |
141 | ||
142 | int cpu_is_not_present(int cpu) | |
d15cf7c1 | 143 | { |
c98d5d94 | 144 | return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set); |
d15cf7c1 | 145 | } |
88c3281f | 146 | /* |
c98d5d94 LB |
147 | * run func(thread, core, package) in topology order |
148 | * skip non-present cpus | |
88c3281f | 149 | */ |
c98d5d94 LB |
150 | |
151 | int for_all_cpus(int (func)(struct thread_data *, struct core_data *, struct pkg_data *), | |
152 | struct thread_data *thread_base, struct core_data *core_base, struct pkg_data *pkg_base) | |
88c3281f | 153 | { |
c98d5d94 | 154 | int retval, pkg_no, core_no, thread_no; |
d15cf7c1 | 155 | |
c98d5d94 LB |
156 | for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { |
157 | for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { | |
158 | for (thread_no = 0; thread_no < | |
159 | topo.num_threads_per_core; ++thread_no) { | |
160 | struct thread_data *t; | |
161 | struct core_data *c; | |
162 | struct pkg_data *p; | |
88c3281f | 163 | |
c98d5d94 LB |
164 | t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); |
165 | ||
166 | if (cpu_is_not_present(t->cpu_id)) | |
167 | continue; | |
168 | ||
169 | c = GET_CORE(core_base, core_no, pkg_no); | |
170 | p = GET_PKG(pkg_base, pkg_no); | |
171 | ||
172 | retval = func(t, c, p); | |
173 | if (retval) | |
174 | return retval; | |
175 | } | |
176 | } | |
177 | } | |
178 | return 0; | |
88c3281f LB |
179 | } |
180 | ||
181 | int cpu_migrate(int cpu) | |
182 | { | |
c98d5d94 LB |
183 | CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); |
184 | CPU_SET_S(cpu, cpu_affinity_setsize, cpu_affinity_set); | |
185 | if (sched_setaffinity(0, cpu_affinity_setsize, cpu_affinity_set) == -1) | |
88c3281f LB |
186 | return -1; |
187 | else | |
188 | return 0; | |
189 | } | |
190 | ||
15aaa346 | 191 | int get_msr(int cpu, off_t offset, unsigned long long *msr) |
103a8fea LB |
192 | { |
193 | ssize_t retval; | |
103a8fea LB |
194 | char pathname[32]; |
195 | int fd; | |
196 | ||
197 | sprintf(pathname, "/dev/cpu/%d/msr", cpu); | |
198 | fd = open(pathname, O_RDONLY); | |
15aaa346 LB |
199 | if (fd < 0) |
200 | return -1; | |
103a8fea | 201 | |
15aaa346 | 202 | retval = pread(fd, msr, sizeof *msr, offset); |
103a8fea | 203 | close(fd); |
15aaa346 LB |
204 | |
205 | if (retval != sizeof *msr) | |
206 | return -1; | |
207 | ||
208 | return 0; | |
103a8fea LB |
209 | } |
210 | ||
2f32edf1 LB |
211 | /* |
212 | * Truncate the 8 bytes we read from /dev/cpu/.../msr | |
213 | * to the 4 bytes requested | |
214 | */ | |
215 | ||
216 | int get_msr32(int cpu, off_t offset, unsigned int *msr) | |
217 | { | |
218 | int retval; | |
219 | ||
220 | unsigned long long msr64; | |
221 | ||
222 | retval = get_msr(cpu, offset, &msr64); | |
223 | *msr = (unsigned int) msr64; | |
224 | ||
225 | return retval; | |
226 | } | |
227 | ||
228 | ||
a829eb4d | 229 | void print_header(void) |
103a8fea LB |
230 | { |
231 | if (show_pkg) | |
c98d5d94 | 232 | outp += sprintf(outp, "pk"); |
e23da037 | 233 | if (show_pkg) |
c98d5d94 | 234 | outp += sprintf(outp, " "); |
103a8fea | 235 | if (show_core) |
c98d5d94 | 236 | outp += sprintf(outp, "cor"); |
103a8fea | 237 | if (show_cpu) |
c98d5d94 | 238 | outp += sprintf(outp, " CPU"); |
e23da037 | 239 | if (show_pkg || show_core || show_cpu) |
c98d5d94 | 240 | outp += sprintf(outp, " "); |
103a8fea | 241 | if (do_nhm_cstates) |
c98d5d94 | 242 | outp += sprintf(outp, " %%c0"); |
103a8fea | 243 | if (has_aperf) |
c98d5d94 LB |
244 | outp += sprintf(outp, " GHz"); |
245 | outp += sprintf(outp, " TSC"); | |
2f32edf1 LB |
246 | if (extra_msr_offset32) |
247 | outp += sprintf(outp, " MSR 0x%04X", extra_msr_offset32); | |
248 | if (extra_msr_offset64) | |
249 | outp += sprintf(outp, " MSR 0x%04X", extra_msr_offset64); | |
103a8fea | 250 | if (do_nhm_cstates) |
c98d5d94 | 251 | outp += sprintf(outp, " %%c1"); |
103a8fea | 252 | if (do_nhm_cstates) |
c98d5d94 | 253 | outp += sprintf(outp, " %%c3"); |
103a8fea | 254 | if (do_nhm_cstates) |
c98d5d94 | 255 | outp += sprintf(outp, " %%c6"); |
103a8fea | 256 | if (do_snb_cstates) |
c98d5d94 | 257 | outp += sprintf(outp, " %%c7"); |
103a8fea | 258 | if (do_snb_cstates) |
c98d5d94 | 259 | outp += sprintf(outp, " %%pc2"); |
103a8fea | 260 | if (do_nhm_cstates) |
c98d5d94 | 261 | outp += sprintf(outp, " %%pc3"); |
103a8fea | 262 | if (do_nhm_cstates) |
c98d5d94 | 263 | outp += sprintf(outp, " %%pc6"); |
103a8fea | 264 | if (do_snb_cstates) |
c98d5d94 | 265 | outp += sprintf(outp, " %%pc7"); |
103a8fea | 266 | |
c98d5d94 | 267 | outp += sprintf(outp, "\n"); |
103a8fea LB |
268 | } |
269 | ||
c98d5d94 LB |
270 | int dump_counters(struct thread_data *t, struct core_data *c, |
271 | struct pkg_data *p) | |
103a8fea | 272 | { |
c98d5d94 LB |
273 | fprintf(stderr, "t %p, c %p, p %p\n", t, c, p); |
274 | ||
275 | if (t) { | |
276 | fprintf(stderr, "CPU: %d flags 0x%x\n", t->cpu_id, t->flags); | |
277 | fprintf(stderr, "TSC: %016llX\n", t->tsc); | |
278 | fprintf(stderr, "aperf: %016llX\n", t->aperf); | |
279 | fprintf(stderr, "mperf: %016llX\n", t->mperf); | |
280 | fprintf(stderr, "c1: %016llX\n", t->c1); | |
2f32edf1 LB |
281 | fprintf(stderr, "msr0x%x: %08X\n", |
282 | extra_msr_offset32, t->extra_msr32); | |
c98d5d94 | 283 | fprintf(stderr, "msr0x%x: %016llX\n", |
2f32edf1 | 284 | extra_msr_offset64, t->extra_msr64); |
c98d5d94 | 285 | } |
103a8fea | 286 | |
c98d5d94 LB |
287 | if (c) { |
288 | fprintf(stderr, "core: %d\n", c->core_id); | |
289 | fprintf(stderr, "c3: %016llX\n", c->c3); | |
290 | fprintf(stderr, "c6: %016llX\n", c->c6); | |
291 | fprintf(stderr, "c7: %016llX\n", c->c7); | |
292 | } | |
103a8fea | 293 | |
c98d5d94 LB |
294 | if (p) { |
295 | fprintf(stderr, "package: %d\n", p->package_id); | |
296 | fprintf(stderr, "pc2: %016llX\n", p->pc2); | |
297 | fprintf(stderr, "pc3: %016llX\n", p->pc3); | |
298 | fprintf(stderr, "pc6: %016llX\n", p->pc6); | |
299 | fprintf(stderr, "pc7: %016llX\n", p->pc7); | |
300 | } | |
301 | return 0; | |
103a8fea LB |
302 | } |
303 | ||
e23da037 LB |
304 | /* |
305 | * column formatting convention & formats | |
306 | * package: "pk" 2 columns %2d | |
307 | * core: "cor" 3 columns %3d | |
308 | * CPU: "CPU" 3 columns %3d | |
309 | * GHz: "GHz" 3 columns %3.2 | |
310 | * TSC: "TSC" 3 columns %3.2 | |
311 | * percentage " %pc3" %6.2 | |
312 | */ | |
c98d5d94 LB |
313 | int format_counters(struct thread_data *t, struct core_data *c, |
314 | struct pkg_data *p) | |
103a8fea LB |
315 | { |
316 | double interval_float; | |
317 | ||
c98d5d94 LB |
318 | /* if showing only 1st thread in core and this isn't one, bail out */ |
319 | if (show_core_only && !(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) | |
320 | return 0; | |
321 | ||
322 | /* if showing only 1st thread in pkg and this isn't one, bail out */ | |
323 | if (show_pkg_only && !(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) | |
324 | return 0; | |
325 | ||
103a8fea LB |
326 | interval_float = tv_delta.tv_sec + tv_delta.tv_usec/1000000.0; |
327 | ||
c98d5d94 LB |
328 | /* topo columns, print blanks on 1st (average) line */ |
329 | if (t == &average.threads) { | |
103a8fea | 330 | if (show_pkg) |
c98d5d94 | 331 | outp += sprintf(outp, " "); |
e23da037 | 332 | if (show_pkg && show_core) |
c98d5d94 | 333 | outp += sprintf(outp, " "); |
103a8fea | 334 | if (show_core) |
c98d5d94 | 335 | outp += sprintf(outp, " "); |
103a8fea | 336 | if (show_cpu) |
c98d5d94 | 337 | outp += sprintf(outp, " " " "); |
103a8fea | 338 | } else { |
c98d5d94 LB |
339 | if (show_pkg) { |
340 | if (p) | |
341 | outp += sprintf(outp, "%2d", p->package_id); | |
342 | else | |
343 | outp += sprintf(outp, " "); | |
344 | } | |
e23da037 | 345 | if (show_pkg && show_core) |
c98d5d94 LB |
346 | outp += sprintf(outp, " "); |
347 | if (show_core) { | |
348 | if (c) | |
349 | outp += sprintf(outp, "%3d", c->core_id); | |
350 | else | |
351 | outp += sprintf(outp, " "); | |
352 | } | |
103a8fea | 353 | if (show_cpu) |
c98d5d94 | 354 | outp += sprintf(outp, " %3d", t->cpu_id); |
103a8fea LB |
355 | } |
356 | ||
357 | /* %c0 */ | |
358 | if (do_nhm_cstates) { | |
e23da037 | 359 | if (show_pkg || show_core || show_cpu) |
c98d5d94 | 360 | outp += sprintf(outp, " "); |
103a8fea | 361 | if (!skip_c0) |
c98d5d94 | 362 | outp += sprintf(outp, "%6.2f", 100.0 * t->mperf/t->tsc); |
103a8fea | 363 | else |
c98d5d94 | 364 | outp += sprintf(outp, " ****"); |
103a8fea LB |
365 | } |
366 | ||
367 | /* GHz */ | |
368 | if (has_aperf) { | |
369 | if (!aperf_mperf_unstable) { | |
c98d5d94 LB |
370 | outp += sprintf(outp, " %3.2f", |
371 | 1.0 * t->tsc / units * t->aperf / | |
372 | t->mperf / interval_float); | |
103a8fea | 373 | } else { |
c98d5d94 LB |
374 | if (t->aperf > t->tsc || t->mperf > t->tsc) { |
375 | outp += sprintf(outp, " ***"); | |
103a8fea | 376 | } else { |
c98d5d94 LB |
377 | outp += sprintf(outp, "%3.1f*", |
378 | 1.0 * t->tsc / | |
379 | units * t->aperf / | |
380 | t->mperf / interval_float); | |
103a8fea LB |
381 | } |
382 | } | |
383 | } | |
384 | ||
385 | /* TSC */ | |
c98d5d94 | 386 | outp += sprintf(outp, "%5.2f", 1.0 * t->tsc/units/interval_float); |
103a8fea | 387 | |
2f32edf1 LB |
388 | /* msr */ |
389 | if (extra_msr_offset32) | |
390 | outp += sprintf(outp, " 0x%08x", t->extra_msr32); | |
391 | ||
130ff304 | 392 | /* MSR */ |
2f32edf1 LB |
393 | if (extra_msr_offset64) |
394 | outp += sprintf(outp, " 0x%016llx", t->extra_msr64); | |
130ff304 | 395 | |
103a8fea LB |
396 | if (do_nhm_cstates) { |
397 | if (!skip_c1) | |
c98d5d94 | 398 | outp += sprintf(outp, " %6.2f", 100.0 * t->c1/t->tsc); |
103a8fea | 399 | else |
c98d5d94 | 400 | outp += sprintf(outp, " ****"); |
103a8fea | 401 | } |
c98d5d94 LB |
402 | |
403 | /* print per-core data only for 1st thread in core */ | |
404 | if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) | |
405 | goto done; | |
406 | ||
103a8fea | 407 | if (do_nhm_cstates) |
c98d5d94 | 408 | outp += sprintf(outp, " %6.2f", 100.0 * c->c3/t->tsc); |
103a8fea | 409 | if (do_nhm_cstates) |
c98d5d94 | 410 | outp += sprintf(outp, " %6.2f", 100.0 * c->c6/t->tsc); |
103a8fea | 411 | if (do_snb_cstates) |
c98d5d94 LB |
412 | outp += sprintf(outp, " %6.2f", 100.0 * c->c7/t->tsc); |
413 | ||
414 | /* print per-package data only for 1st core in package */ | |
415 | if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) | |
416 | goto done; | |
417 | ||
103a8fea | 418 | if (do_snb_cstates) |
c98d5d94 | 419 | outp += sprintf(outp, " %6.2f", 100.0 * p->pc2/t->tsc); |
103a8fea | 420 | if (do_nhm_cstates) |
c98d5d94 | 421 | outp += sprintf(outp, " %6.2f", 100.0 * p->pc3/t->tsc); |
103a8fea | 422 | if (do_nhm_cstates) |
c98d5d94 | 423 | outp += sprintf(outp, " %6.2f", 100.0 * p->pc6/t->tsc); |
103a8fea | 424 | if (do_snb_cstates) |
c98d5d94 LB |
425 | outp += sprintf(outp, " %6.2f", 100.0 * p->pc7/t->tsc); |
426 | done: | |
c98d5d94 LB |
427 | outp += sprintf(outp, "\n"); |
428 | ||
429 | return 0; | |
103a8fea LB |
430 | } |
431 | ||
c98d5d94 LB |
432 | void flush_stdout() |
433 | { | |
434 | fputs(output_buffer, stdout); | |
435 | outp = output_buffer; | |
436 | } | |
437 | void flush_stderr() | |
438 | { | |
439 | fputs(output_buffer, stderr); | |
440 | outp = output_buffer; | |
441 | } | |
442 | void format_all_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) | |
103a8fea | 443 | { |
e23da037 | 444 | static int printed; |
103a8fea | 445 | |
e23da037 LB |
446 | if (!printed || !summary_only) |
447 | print_header(); | |
103a8fea | 448 | |
c98d5d94 LB |
449 | if (topo.num_cpus > 1) |
450 | format_counters(&average.threads, &average.cores, | |
451 | &average.packages); | |
103a8fea | 452 | |
e23da037 LB |
453 | printed = 1; |
454 | ||
455 | if (summary_only) | |
456 | return; | |
457 | ||
c98d5d94 | 458 | for_all_cpus(format_counters, t, c, p); |
103a8fea LB |
459 | } |
460 | ||
c98d5d94 LB |
461 | void |
462 | delta_package(struct pkg_data *new, struct pkg_data *old) | |
463 | { | |
464 | old->pc2 = new->pc2 - old->pc2; | |
465 | old->pc3 = new->pc3 - old->pc3; | |
466 | old->pc6 = new->pc6 - old->pc6; | |
467 | old->pc7 = new->pc7 - old->pc7; | |
468 | } | |
103a8fea | 469 | |
c98d5d94 LB |
470 | void |
471 | delta_core(struct core_data *new, struct core_data *old) | |
103a8fea | 472 | { |
c98d5d94 LB |
473 | old->c3 = new->c3 - old->c3; |
474 | old->c6 = new->c6 - old->c6; | |
475 | old->c7 = new->c7 - old->c7; | |
476 | } | |
103a8fea | 477 | |
c3ae331d LB |
478 | /* |
479 | * old = new - old | |
480 | */ | |
c98d5d94 LB |
481 | void |
482 | delta_thread(struct thread_data *new, struct thread_data *old, | |
483 | struct core_data *core_delta) | |
484 | { | |
485 | old->tsc = new->tsc - old->tsc; | |
486 | ||
487 | /* check for TSC < 1 Mcycles over interval */ | |
488 | if (old->tsc < (1000 * 1000)) { | |
489 | fprintf(stderr, "Insanely slow TSC rate, TSC stops in idle?\n"); | |
490 | fprintf(stderr, "You can disable all c-states by booting with \"idle=poll\"\n"); | |
491 | fprintf(stderr, "or just the deep ones with \"processor.max_cstate=1\"\n"); | |
492 | exit(-3); | |
493 | } | |
103a8fea | 494 | |
c98d5d94 | 495 | old->c1 = new->c1 - old->c1; |
103a8fea | 496 | |
c98d5d94 LB |
497 | if ((new->aperf > old->aperf) && (new->mperf > old->mperf)) { |
498 | old->aperf = new->aperf - old->aperf; | |
499 | old->mperf = new->mperf - old->mperf; | |
500 | } else { | |
103a8fea | 501 | |
c98d5d94 LB |
502 | if (!aperf_mperf_unstable) { |
503 | fprintf(stderr, "%s: APERF or MPERF went backwards *\n", progname); | |
504 | fprintf(stderr, "* Frequency results do not cover entire interval *\n"); | |
505 | fprintf(stderr, "* fix this by running Linux-2.6.30 or later *\n"); | |
103a8fea | 506 | |
c98d5d94 | 507 | aperf_mperf_unstable = 1; |
103a8fea | 508 | } |
103a8fea | 509 | /* |
c98d5d94 LB |
510 | * mperf delta is likely a huge "positive" number |
511 | * can not use it for calculating c0 time | |
103a8fea | 512 | */ |
c98d5d94 LB |
513 | skip_c0 = 1; |
514 | skip_c1 = 1; | |
515 | } | |
103a8fea | 516 | |
103a8fea | 517 | |
c98d5d94 | 518 | /* |
c3ae331d LB |
519 | * As counter collection is not atomic, |
520 | * it is possible for mperf's non-halted cycles + idle states | |
c98d5d94 LB |
521 | * to exceed TSC's all cycles: show c1 = 0% in that case. |
522 | */ | |
c3ae331d | 523 | if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc) |
c98d5d94 LB |
524 | old->c1 = 0; |
525 | else { | |
526 | /* normal case, derive c1 */ | |
527 | old->c1 = old->tsc - old->mperf - core_delta->c3 | |
528 | - core_delta->c6 - core_delta->c7; | |
529 | } | |
c3ae331d | 530 | |
c98d5d94 | 531 | if (old->mperf == 0) { |
c3ae331d | 532 | if (verbose > 1) fprintf(stderr, "cpu%d MPERF 0!\n", old->cpu_id); |
c98d5d94 | 533 | old->mperf = 1; /* divide by 0 protection */ |
103a8fea | 534 | } |
c98d5d94 LB |
535 | |
536 | /* | |
2f32edf1 | 537 | * Extra MSR is a snapshot, simply copy latest w/o subtracting |
c98d5d94 | 538 | */ |
2f32edf1 LB |
539 | old->extra_msr32 = new->extra_msr32; |
540 | old->extra_msr64 = new->extra_msr64; | |
c98d5d94 LB |
541 | } |
542 | ||
543 | int delta_cpu(struct thread_data *t, struct core_data *c, | |
544 | struct pkg_data *p, struct thread_data *t2, | |
545 | struct core_data *c2, struct pkg_data *p2) | |
546 | { | |
547 | /* calculate core delta only for 1st thread in core */ | |
548 | if (t->flags & CPU_IS_FIRST_THREAD_IN_CORE) | |
549 | delta_core(c, c2); | |
550 | ||
551 | /* always calculate thread delta */ | |
552 | delta_thread(t, t2, c2); /* c2 is core delta */ | |
553 | ||
554 | /* calculate package delta only for 1st core in package */ | |
555 | if (t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE) | |
556 | delta_package(p, p2); | |
557 | ||
103a8fea LB |
558 | return 0; |
559 | } | |
560 | ||
c98d5d94 LB |
561 | void clear_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) |
562 | { | |
563 | t->tsc = 0; | |
564 | t->aperf = 0; | |
565 | t->mperf = 0; | |
566 | t->c1 = 0; | |
567 | ||
568 | /* tells format_counters to dump all fields from this set */ | |
569 | t->flags = CPU_IS_FIRST_THREAD_IN_CORE | CPU_IS_FIRST_CORE_IN_PACKAGE; | |
570 | ||
571 | c->c3 = 0; | |
572 | c->c6 = 0; | |
573 | c->c7 = 0; | |
574 | ||
575 | p->pc2 = 0; | |
576 | p->pc3 = 0; | |
577 | p->pc6 = 0; | |
578 | p->pc7 = 0; | |
579 | } | |
580 | int sum_counters(struct thread_data *t, struct core_data *c, | |
581 | struct pkg_data *p) | |
103a8fea | 582 | { |
c98d5d94 LB |
583 | average.threads.tsc += t->tsc; |
584 | average.threads.aperf += t->aperf; | |
585 | average.threads.mperf += t->mperf; | |
586 | average.threads.c1 += t->c1; | |
103a8fea | 587 | |
c98d5d94 LB |
588 | /* sum per-core values only for 1st thread in core */ |
589 | if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) | |
590 | return 0; | |
103a8fea | 591 | |
c98d5d94 LB |
592 | average.cores.c3 += c->c3; |
593 | average.cores.c6 += c->c6; | |
594 | average.cores.c7 += c->c7; | |
595 | ||
596 | /* sum per-pkg values only for 1st core in pkg */ | |
597 | if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) | |
598 | return 0; | |
599 | ||
600 | average.packages.pc2 += p->pc2; | |
601 | average.packages.pc3 += p->pc3; | |
602 | average.packages.pc6 += p->pc6; | |
603 | average.packages.pc7 += p->pc7; | |
604 | ||
605 | return 0; | |
606 | } | |
607 | /* | |
608 | * sum the counters for all cpus in the system | |
609 | * compute the weighted average | |
610 | */ | |
611 | void compute_average(struct thread_data *t, struct core_data *c, | |
612 | struct pkg_data *p) | |
613 | { | |
614 | clear_counters(&average.threads, &average.cores, &average.packages); | |
615 | ||
616 | for_all_cpus(sum_counters, t, c, p); | |
617 | ||
618 | average.threads.tsc /= topo.num_cpus; | |
619 | average.threads.aperf /= topo.num_cpus; | |
620 | average.threads.mperf /= topo.num_cpus; | |
621 | average.threads.c1 /= topo.num_cpus; | |
622 | ||
623 | average.cores.c3 /= topo.num_cores; | |
624 | average.cores.c6 /= topo.num_cores; | |
625 | average.cores.c7 /= topo.num_cores; | |
626 | ||
627 | average.packages.pc2 /= topo.num_packages; | |
628 | average.packages.pc3 /= topo.num_packages; | |
629 | average.packages.pc6 /= topo.num_packages; | |
630 | average.packages.pc7 /= topo.num_packages; | |
103a8fea LB |
631 | } |
632 | ||
c98d5d94 | 633 | static unsigned long long rdtsc(void) |
103a8fea | 634 | { |
c98d5d94 | 635 | unsigned int low, high; |
15aaa346 | 636 | |
c98d5d94 | 637 | asm volatile("rdtsc" : "=a" (low), "=d" (high)); |
15aaa346 | 638 | |
c98d5d94 LB |
639 | return low | ((unsigned long long)high) << 32; |
640 | } | |
15aaa346 | 641 | |
15aaa346 | 642 | |
c98d5d94 LB |
643 | /* |
644 | * get_counters(...) | |
645 | * migrate to cpu | |
646 | * acquire and record local counters for that cpu | |
647 | */ | |
648 | int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p) | |
649 | { | |
650 | int cpu = t->cpu_id; | |
88c3281f | 651 | |
c98d5d94 LB |
652 | if (cpu_migrate(cpu)) |
653 | return -1; | |
15aaa346 | 654 | |
c98d5d94 LB |
655 | t->tsc = rdtsc(); /* we are running on local CPU of interest */ |
656 | ||
657 | if (has_aperf) { | |
658 | if (get_msr(cpu, MSR_APERF, &t->aperf)) | |
659 | return -3; | |
660 | if (get_msr(cpu, MSR_MPERF, &t->mperf)) | |
661 | return -4; | |
662 | } | |
663 | ||
2f32edf1 LB |
664 | if (extra_msr_offset32) |
665 | if (get_msr32(cpu, extra_msr_offset32, &t->extra_msr32)) | |
666 | return -5; | |
667 | ||
668 | if (extra_msr_offset64) | |
669 | if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64)) | |
c98d5d94 LB |
670 | return -5; |
671 | ||
672 | /* collect core counters only for 1st thread in core */ | |
673 | if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE)) | |
674 | return 0; | |
675 | ||
676 | if (do_nhm_cstates) { | |
677 | if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3)) | |
678 | return -6; | |
679 | if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6)) | |
680 | return -7; | |
681 | } | |
682 | ||
683 | if (do_snb_cstates) | |
684 | if (get_msr(cpu, MSR_CORE_C7_RESIDENCY, &c->c7)) | |
685 | return -8; | |
686 | ||
687 | /* collect package counters only for 1st core in package */ | |
688 | if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE)) | |
689 | return 0; | |
690 | ||
691 | if (do_nhm_cstates) { | |
692 | if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3)) | |
693 | return -9; | |
694 | if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6)) | |
695 | return -10; | |
696 | } | |
697 | if (do_snb_cstates) { | |
698 | if (get_msr(cpu, MSR_PKG_C2_RESIDENCY, &p->pc2)) | |
699 | return -11; | |
700 | if (get_msr(cpu, MSR_PKG_C7_RESIDENCY, &p->pc7)) | |
701 | return -12; | |
103a8fea | 702 | } |
15aaa346 | 703 | return 0; |
103a8fea LB |
704 | } |
705 | ||
c98d5d94 | 706 | void print_verbose_header(void) |
103a8fea LB |
707 | { |
708 | unsigned long long msr; | |
709 | unsigned int ratio; | |
710 | ||
711 | if (!do_nehalem_platform_info) | |
712 | return; | |
713 | ||
15aaa346 | 714 | get_msr(0, MSR_NEHALEM_PLATFORM_INFO, &msr); |
103a8fea | 715 | |
6574a5d5 LB |
716 | if (verbose > 1) |
717 | fprintf(stderr, "MSR_NEHALEM_PLATFORM_INFO: 0x%llx\n", msr); | |
718 | ||
103a8fea LB |
719 | ratio = (msr >> 40) & 0xFF; |
720 | fprintf(stderr, "%d * %.0f = %.0f MHz max efficiency\n", | |
721 | ratio, bclk, ratio * bclk); | |
722 | ||
723 | ratio = (msr >> 8) & 0xFF; | |
724 | fprintf(stderr, "%d * %.0f = %.0f MHz TSC frequency\n", | |
725 | ratio, bclk, ratio * bclk); | |
726 | ||
6574a5d5 LB |
727 | if (!do_ivt_turbo_ratio_limit) |
728 | goto print_nhm_turbo_ratio_limits; | |
729 | ||
730 | get_msr(0, MSR_IVT_TURBO_RATIO_LIMIT, &msr); | |
731 | ||
103a8fea | 732 | if (verbose > 1) |
6574a5d5 LB |
733 | fprintf(stderr, "MSR_IVT_TURBO_RATIO_LIMIT: 0x%llx\n", msr); |
734 | ||
735 | ratio = (msr >> 56) & 0xFF; | |
736 | if (ratio) | |
737 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 16 active cores\n", | |
738 | ratio, bclk, ratio * bclk); | |
739 | ||
740 | ratio = (msr >> 48) & 0xFF; | |
741 | if (ratio) | |
742 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 15 active cores\n", | |
743 | ratio, bclk, ratio * bclk); | |
744 | ||
745 | ratio = (msr >> 40) & 0xFF; | |
746 | if (ratio) | |
747 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 14 active cores\n", | |
748 | ratio, bclk, ratio * bclk); | |
749 | ||
750 | ratio = (msr >> 32) & 0xFF; | |
751 | if (ratio) | |
752 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 13 active cores\n", | |
753 | ratio, bclk, ratio * bclk); | |
754 | ||
755 | ratio = (msr >> 24) & 0xFF; | |
756 | if (ratio) | |
757 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 12 active cores\n", | |
758 | ratio, bclk, ratio * bclk); | |
759 | ||
760 | ratio = (msr >> 16) & 0xFF; | |
761 | if (ratio) | |
762 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 11 active cores\n", | |
763 | ratio, bclk, ratio * bclk); | |
764 | ||
765 | ratio = (msr >> 8) & 0xFF; | |
766 | if (ratio) | |
767 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 10 active cores\n", | |
768 | ratio, bclk, ratio * bclk); | |
769 | ||
770 | ratio = (msr >> 0) & 0xFF; | |
771 | if (ratio) | |
772 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 9 active cores\n", | |
773 | ratio, bclk, ratio * bclk); | |
774 | ||
775 | print_nhm_turbo_ratio_limits: | |
103a8fea LB |
776 | |
777 | if (!do_nehalem_turbo_ratio_limit) | |
778 | return; | |
779 | ||
15aaa346 | 780 | get_msr(0, MSR_NEHALEM_TURBO_RATIO_LIMIT, &msr); |
103a8fea | 781 | |
6574a5d5 LB |
782 | if (verbose > 1) |
783 | fprintf(stderr, "MSR_NEHALEM_TURBO_RATIO_LIMIT: 0x%llx\n", msr); | |
784 | ||
785 | ratio = (msr >> 56) & 0xFF; | |
786 | if (ratio) | |
787 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 8 active cores\n", | |
788 | ratio, bclk, ratio * bclk); | |
789 | ||
790 | ratio = (msr >> 48) & 0xFF; | |
791 | if (ratio) | |
792 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 7 active cores\n", | |
793 | ratio, bclk, ratio * bclk); | |
794 | ||
795 | ratio = (msr >> 40) & 0xFF; | |
796 | if (ratio) | |
797 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 6 active cores\n", | |
798 | ratio, bclk, ratio * bclk); | |
799 | ||
800 | ratio = (msr >> 32) & 0xFF; | |
801 | if (ratio) | |
802 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 5 active cores\n", | |
803 | ratio, bclk, ratio * bclk); | |
804 | ||
103a8fea LB |
805 | ratio = (msr >> 24) & 0xFF; |
806 | if (ratio) | |
807 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 4 active cores\n", | |
808 | ratio, bclk, ratio * bclk); | |
809 | ||
810 | ratio = (msr >> 16) & 0xFF; | |
811 | if (ratio) | |
812 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 3 active cores\n", | |
813 | ratio, bclk, ratio * bclk); | |
814 | ||
815 | ratio = (msr >> 8) & 0xFF; | |
816 | if (ratio) | |
817 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 2 active cores\n", | |
818 | ratio, bclk, ratio * bclk); | |
819 | ||
820 | ratio = (msr >> 0) & 0xFF; | |
821 | if (ratio) | |
822 | fprintf(stderr, "%d * %.0f = %.0f MHz max turbo 1 active cores\n", | |
823 | ratio, bclk, ratio * bclk); | |
103a8fea LB |
824 | } |
825 | ||
c98d5d94 | 826 | void free_all_buffers(void) |
103a8fea | 827 | { |
c98d5d94 LB |
828 | CPU_FREE(cpu_present_set); |
829 | cpu_present_set = NULL; | |
830 | cpu_present_set = 0; | |
103a8fea | 831 | |
c98d5d94 LB |
832 | CPU_FREE(cpu_affinity_set); |
833 | cpu_affinity_set = NULL; | |
834 | cpu_affinity_setsize = 0; | |
103a8fea | 835 | |
c98d5d94 LB |
836 | free(thread_even); |
837 | free(core_even); | |
838 | free(package_even); | |
103a8fea | 839 | |
c98d5d94 LB |
840 | thread_even = NULL; |
841 | core_even = NULL; | |
842 | package_even = NULL; | |
103a8fea | 843 | |
c98d5d94 LB |
844 | free(thread_odd); |
845 | free(core_odd); | |
846 | free(package_odd); | |
103a8fea | 847 | |
c98d5d94 LB |
848 | thread_odd = NULL; |
849 | core_odd = NULL; | |
850 | package_odd = NULL; | |
103a8fea | 851 | |
c98d5d94 LB |
852 | free(output_buffer); |
853 | output_buffer = NULL; | |
854 | outp = NULL; | |
103a8fea LB |
855 | } |
856 | ||
c98d5d94 LB |
857 | /* |
858 | * cpu_is_first_sibling_in_core(cpu) | |
859 | * return 1 if given CPU is 1st HT sibling in the core | |
860 | */ | |
861 | int cpu_is_first_sibling_in_core(int cpu) | |
103a8fea | 862 | { |
c98d5d94 LB |
863 | char path[64]; |
864 | FILE *filep; | |
865 | int first_cpu; | |
103a8fea | 866 | |
c98d5d94 LB |
867 | sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); |
868 | filep = fopen(path, "r"); | |
869 | if (filep == NULL) { | |
870 | perror(path); | |
871 | exit(1); | |
103a8fea | 872 | } |
c98d5d94 LB |
873 | fscanf(filep, "%d", &first_cpu); |
874 | fclose(filep); | |
875 | return (cpu == first_cpu); | |
103a8fea LB |
876 | } |
877 | ||
c98d5d94 LB |
878 | /* |
879 | * cpu_is_first_core_in_package(cpu) | |
880 | * return 1 if given CPU is 1st core in package | |
881 | */ | |
882 | int cpu_is_first_core_in_package(int cpu) | |
103a8fea | 883 | { |
c98d5d94 LB |
884 | char path[64]; |
885 | FILE *filep; | |
886 | int first_cpu; | |
103a8fea | 887 | |
c98d5d94 LB |
888 | sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/core_siblings_list", cpu); |
889 | filep = fopen(path, "r"); | |
890 | if (filep == NULL) { | |
891 | perror(path); | |
103a8fea LB |
892 | exit(1); |
893 | } | |
c98d5d94 LB |
894 | fscanf(filep, "%d", &first_cpu); |
895 | fclose(filep); | |
896 | return (cpu == first_cpu); | |
103a8fea LB |
897 | } |
898 | ||
899 | int get_physical_package_id(int cpu) | |
900 | { | |
c98d5d94 | 901 | char path[80]; |
103a8fea LB |
902 | FILE *filep; |
903 | int pkg; | |
904 | ||
905 | sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/physical_package_id", cpu); | |
906 | filep = fopen(path, "r"); | |
907 | if (filep == NULL) { | |
908 | perror(path); | |
909 | exit(1); | |
910 | } | |
911 | fscanf(filep, "%d", &pkg); | |
912 | fclose(filep); | |
913 | return pkg; | |
914 | } | |
915 | ||
916 | int get_core_id(int cpu) | |
917 | { | |
c98d5d94 | 918 | char path[80]; |
103a8fea LB |
919 | FILE *filep; |
920 | int core; | |
921 | ||
922 | sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/core_id", cpu); | |
923 | filep = fopen(path, "r"); | |
924 | if (filep == NULL) { | |
925 | perror(path); | |
926 | exit(1); | |
927 | } | |
928 | fscanf(filep, "%d", &core); | |
929 | fclose(filep); | |
930 | return core; | |
931 | } | |
932 | ||
c98d5d94 LB |
933 | int get_num_ht_siblings(int cpu) |
934 | { | |
935 | char path[80]; | |
936 | FILE *filep; | |
937 | int sib1, sib2; | |
938 | int matches; | |
939 | char character; | |
940 | ||
941 | sprintf(path, "/sys/devices/system/cpu/cpu%d/topology/thread_siblings_list", cpu); | |
942 | filep = fopen(path, "r"); | |
943 | if (filep == NULL) { | |
944 | perror(path); | |
945 | exit(1); | |
946 | } | |
947 | /* | |
948 | * file format: | |
949 | * if a pair of number with a character between: 2 siblings (eg. 1-2, or 1,4) | |
950 | * otherwinse 1 sibling (self). | |
951 | */ | |
952 | matches = fscanf(filep, "%d%c%d\n", &sib1, &character, &sib2); | |
953 | ||
954 | fclose(filep); | |
955 | ||
956 | if (matches == 3) | |
957 | return 2; | |
958 | else | |
959 | return 1; | |
960 | } | |
961 | ||
103a8fea | 962 | /* |
c98d5d94 LB |
963 | * run func(thread, core, package) in topology order |
964 | * skip non-present cpus | |
103a8fea LB |
965 | */ |
966 | ||
c98d5d94 LB |
967 | int for_all_cpus_2(int (func)(struct thread_data *, struct core_data *, |
968 | struct pkg_data *, struct thread_data *, struct core_data *, | |
969 | struct pkg_data *), struct thread_data *thread_base, | |
970 | struct core_data *core_base, struct pkg_data *pkg_base, | |
971 | struct thread_data *thread_base2, struct core_data *core_base2, | |
972 | struct pkg_data *pkg_base2) | |
973 | { | |
974 | int retval, pkg_no, core_no, thread_no; | |
975 | ||
976 | for (pkg_no = 0; pkg_no < topo.num_packages; ++pkg_no) { | |
977 | for (core_no = 0; core_no < topo.num_cores_per_pkg; ++core_no) { | |
978 | for (thread_no = 0; thread_no < | |
979 | topo.num_threads_per_core; ++thread_no) { | |
980 | struct thread_data *t, *t2; | |
981 | struct core_data *c, *c2; | |
982 | struct pkg_data *p, *p2; | |
983 | ||
984 | t = GET_THREAD(thread_base, thread_no, core_no, pkg_no); | |
985 | ||
986 | if (cpu_is_not_present(t->cpu_id)) | |
987 | continue; | |
988 | ||
989 | t2 = GET_THREAD(thread_base2, thread_no, core_no, pkg_no); | |
990 | ||
991 | c = GET_CORE(core_base, core_no, pkg_no); | |
992 | c2 = GET_CORE(core_base2, core_no, pkg_no); | |
993 | ||
994 | p = GET_PKG(pkg_base, pkg_no); | |
995 | p2 = GET_PKG(pkg_base2, pkg_no); | |
996 | ||
997 | retval = func(t, c, p, t2, c2, p2); | |
998 | if (retval) | |
999 | return retval; | |
1000 | } | |
1001 | } | |
1002 | } | |
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | /* | |
1007 | * run func(cpu) on every cpu in /proc/stat | |
1008 | * return max_cpu number | |
1009 | */ | |
1010 | int for_all_proc_cpus(int (func)(int)) | |
103a8fea LB |
1011 | { |
1012 | FILE *fp; | |
c98d5d94 | 1013 | int cpu_num; |
103a8fea LB |
1014 | int retval; |
1015 | ||
1016 | fp = fopen(proc_stat, "r"); | |
1017 | if (fp == NULL) { | |
1018 | perror(proc_stat); | |
1019 | exit(1); | |
1020 | } | |
1021 | ||
1022 | retval = fscanf(fp, "cpu %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n"); | |
1023 | if (retval != 0) { | |
1024 | perror("/proc/stat format"); | |
1025 | exit(1); | |
1026 | } | |
1027 | ||
c98d5d94 LB |
1028 | while (1) { |
1029 | retval = fscanf(fp, "cpu%u %*d %*d %*d %*d %*d %*d %*d %*d %*d %*d\n", &cpu_num); | |
103a8fea LB |
1030 | if (retval != 1) |
1031 | break; | |
1032 | ||
c98d5d94 LB |
1033 | retval = func(cpu_num); |
1034 | if (retval) { | |
1035 | fclose(fp); | |
1036 | return(retval); | |
1037 | } | |
103a8fea LB |
1038 | } |
1039 | fclose(fp); | |
c98d5d94 | 1040 | return 0; |
103a8fea LB |
1041 | } |
1042 | ||
1043 | void re_initialize(void) | |
1044 | { | |
c98d5d94 LB |
1045 | free_all_buffers(); |
1046 | setup_all_buffers(); | |
1047 | printf("turbostat: re-initialized with num_cpus %d\n", topo.num_cpus); | |
103a8fea LB |
1048 | } |
1049 | ||
c98d5d94 | 1050 | |
103a8fea | 1051 | /* |
c98d5d94 LB |
1052 | * count_cpus() |
1053 | * remember the last one seen, it will be the max | |
103a8fea | 1054 | */ |
c98d5d94 | 1055 | int count_cpus(int cpu) |
103a8fea | 1056 | { |
c98d5d94 LB |
1057 | if (topo.max_cpu_num < cpu) |
1058 | topo.max_cpu_num = cpu; | |
103a8fea | 1059 | |
c98d5d94 LB |
1060 | topo.num_cpus += 1; |
1061 | return 0; | |
1062 | } | |
1063 | int mark_cpu_present(int cpu) | |
1064 | { | |
1065 | CPU_SET_S(cpu, cpu_present_setsize, cpu_present_set); | |
15aaa346 | 1066 | return 0; |
103a8fea LB |
1067 | } |
1068 | ||
1069 | void turbostat_loop() | |
1070 | { | |
c98d5d94 LB |
1071 | int retval; |
1072 | ||
103a8fea | 1073 | restart: |
c98d5d94 LB |
1074 | retval = for_all_cpus(get_counters, EVEN_COUNTERS); |
1075 | if (retval) { | |
1076 | re_initialize(); | |
1077 | goto restart; | |
1078 | } | |
103a8fea LB |
1079 | gettimeofday(&tv_even, (struct timezone *)NULL); |
1080 | ||
1081 | while (1) { | |
c98d5d94 | 1082 | if (for_all_proc_cpus(cpu_is_not_present)) { |
103a8fea LB |
1083 | re_initialize(); |
1084 | goto restart; | |
1085 | } | |
1086 | sleep(interval_sec); | |
c98d5d94 LB |
1087 | retval = for_all_cpus(get_counters, ODD_COUNTERS); |
1088 | if (retval) { | |
15aaa346 LB |
1089 | re_initialize(); |
1090 | goto restart; | |
1091 | } | |
103a8fea | 1092 | gettimeofday(&tv_odd, (struct timezone *)NULL); |
103a8fea | 1093 | timersub(&tv_odd, &tv_even, &tv_delta); |
c98d5d94 LB |
1094 | for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); |
1095 | compute_average(EVEN_COUNTERS); | |
1096 | format_all_counters(EVEN_COUNTERS); | |
1097 | flush_stdout(); | |
15aaa346 | 1098 | sleep(interval_sec); |
c98d5d94 LB |
1099 | retval = for_all_cpus(get_counters, EVEN_COUNTERS); |
1100 | if (retval) { | |
103a8fea LB |
1101 | re_initialize(); |
1102 | goto restart; | |
1103 | } | |
103a8fea | 1104 | gettimeofday(&tv_even, (struct timezone *)NULL); |
103a8fea | 1105 | timersub(&tv_even, &tv_odd, &tv_delta); |
c98d5d94 LB |
1106 | for_all_cpus_2(delta_cpu, EVEN_COUNTERS, ODD_COUNTERS); |
1107 | compute_average(ODD_COUNTERS); | |
1108 | format_all_counters(ODD_COUNTERS); | |
1109 | flush_stdout(); | |
103a8fea LB |
1110 | } |
1111 | } | |
1112 | ||
1113 | void check_dev_msr() | |
1114 | { | |
1115 | struct stat sb; | |
1116 | ||
1117 | if (stat("/dev/cpu/0/msr", &sb)) { | |
1118 | fprintf(stderr, "no /dev/cpu/0/msr\n"); | |
1119 | fprintf(stderr, "Try \"# modprobe msr\"\n"); | |
1120 | exit(-5); | |
1121 | } | |
1122 | } | |
1123 | ||
1124 | void check_super_user() | |
1125 | { | |
1126 | if (getuid() != 0) { | |
1127 | fprintf(stderr, "must be root\n"); | |
1128 | exit(-6); | |
1129 | } | |
1130 | } | |
1131 | ||
1132 | int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model) | |
1133 | { | |
1134 | if (!genuine_intel) | |
1135 | return 0; | |
1136 | ||
1137 | if (family != 6) | |
1138 | return 0; | |
1139 | ||
1140 | switch (model) { | |
1141 | case 0x1A: /* Core i7, Xeon 5500 series - Bloomfield, Gainstown NHM-EP */ | |
1142 | case 0x1E: /* Core i7 and i5 Processor - Clarksfield, Lynnfield, Jasper Forest */ | |
1143 | case 0x1F: /* Core i7 and i5 Processor - Nehalem */ | |
1144 | case 0x25: /* Westmere Client - Clarkdale, Arrandale */ | |
1145 | case 0x2C: /* Westmere EP - Gulftown */ | |
1146 | case 0x2A: /* SNB */ | |
1147 | case 0x2D: /* SNB Xeon */ | |
553575f1 | 1148 | case 0x3A: /* IVB */ |
1300651b | 1149 | case 0x3E: /* IVB Xeon */ |
103a8fea LB |
1150 | return 1; |
1151 | case 0x2E: /* Nehalem-EX Xeon - Beckton */ | |
1152 | case 0x2F: /* Westmere-EX Xeon - Eagleton */ | |
1153 | default: | |
1154 | return 0; | |
1155 | } | |
1156 | } | |
6574a5d5 LB |
1157 | int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model) |
1158 | { | |
1159 | if (!genuine_intel) | |
1160 | return 0; | |
1161 | ||
1162 | if (family != 6) | |
1163 | return 0; | |
1164 | ||
1165 | switch (model) { | |
1166 | case 0x3E: /* IVB Xeon */ | |
1167 | return 1; | |
1168 | default: | |
1169 | return 0; | |
1170 | } | |
1171 | } | |
1172 | ||
103a8fea LB |
1173 | |
1174 | int is_snb(unsigned int family, unsigned int model) | |
1175 | { | |
1176 | if (!genuine_intel) | |
1177 | return 0; | |
1178 | ||
1179 | switch (model) { | |
1180 | case 0x2A: | |
1181 | case 0x2D: | |
650a37f3 | 1182 | case 0x3A: /* IVB */ |
1300651b | 1183 | case 0x3E: /* IVB Xeon */ |
103a8fea LB |
1184 | return 1; |
1185 | } | |
1186 | return 0; | |
1187 | } | |
1188 | ||
1189 | double discover_bclk(unsigned int family, unsigned int model) | |
1190 | { | |
1191 | if (is_snb(family, model)) | |
1192 | return 100.00; | |
1193 | else | |
1194 | return 133.33; | |
1195 | } | |
1196 | ||
1197 | void check_cpuid() | |
1198 | { | |
1199 | unsigned int eax, ebx, ecx, edx, max_level; | |
1200 | unsigned int fms, family, model, stepping; | |
1201 | ||
1202 | eax = ebx = ecx = edx = 0; | |
1203 | ||
1204 | asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0)); | |
1205 | ||
1206 | if (ebx == 0x756e6547 && edx == 0x49656e69 && ecx == 0x6c65746e) | |
1207 | genuine_intel = 1; | |
1208 | ||
1209 | if (verbose) | |
1210 | fprintf(stderr, "%.4s%.4s%.4s ", | |
1211 | (char *)&ebx, (char *)&edx, (char *)&ecx); | |
1212 | ||
1213 | asm("cpuid" : "=a" (fms), "=c" (ecx), "=d" (edx) : "a" (1) : "ebx"); | |
1214 | family = (fms >> 8) & 0xf; | |
1215 | model = (fms >> 4) & 0xf; | |
1216 | stepping = fms & 0xf; | |
1217 | if (family == 6 || family == 0xf) | |
1218 | model += ((fms >> 16) & 0xf) << 4; | |
1219 | ||
1220 | if (verbose) | |
1221 | fprintf(stderr, "%d CPUID levels; family:model:stepping 0x%x:%x:%x (%d:%d:%d)\n", | |
1222 | max_level, family, model, stepping, family, model, stepping); | |
1223 | ||
1224 | if (!(edx & (1 << 5))) { | |
1225 | fprintf(stderr, "CPUID: no MSR\n"); | |
1226 | exit(1); | |
1227 | } | |
1228 | ||
1229 | /* | |
1230 | * check max extended function levels of CPUID. | |
1231 | * This is needed to check for invariant TSC. | |
1232 | * This check is valid for both Intel and AMD. | |
1233 | */ | |
1234 | ebx = ecx = edx = 0; | |
1235 | asm("cpuid" : "=a" (max_level), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000000)); | |
1236 | ||
1237 | if (max_level < 0x80000007) { | |
1238 | fprintf(stderr, "CPUID: no invariant TSC (max_level 0x%x)\n", max_level); | |
1239 | exit(1); | |
1240 | } | |
1241 | ||
1242 | /* | |
1243 | * Non-Stop TSC is advertised by CPUID.EAX=0x80000007: EDX.bit8 | |
1244 | * this check is valid for both Intel and AMD | |
1245 | */ | |
1246 | asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x80000007)); | |
8209e054 | 1247 | has_invariant_tsc = edx & (1 << 8); |
103a8fea LB |
1248 | |
1249 | if (!has_invariant_tsc) { | |
1250 | fprintf(stderr, "No invariant TSC\n"); | |
1251 | exit(1); | |
1252 | } | |
1253 | ||
1254 | /* | |
1255 | * APERF/MPERF is advertised by CPUID.EAX=0x6: ECX.bit0 | |
1256 | * this check is valid for both Intel and AMD | |
1257 | */ | |
1258 | ||
1259 | asm("cpuid" : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (0x6)); | |
8209e054 | 1260 | has_aperf = ecx & (1 << 0); |
103a8fea LB |
1261 | if (!has_aperf) { |
1262 | fprintf(stderr, "No APERF MSR\n"); | |
1263 | exit(1); | |
1264 | } | |
1265 | ||
1266 | do_nehalem_platform_info = genuine_intel && has_invariant_tsc; | |
1267 | do_nhm_cstates = genuine_intel; /* all Intel w/ non-stop TSC have NHM counters */ | |
1268 | do_snb_cstates = is_snb(family, model); | |
1269 | bclk = discover_bclk(family, model); | |
1270 | ||
1271 | do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model); | |
6574a5d5 | 1272 | do_ivt_turbo_ratio_limit = has_ivt_turbo_ratio_limit(family, model); |
103a8fea LB |
1273 | } |
1274 | ||
1275 | ||
1276 | void usage() | |
1277 | { | |
2f32edf1 | 1278 | fprintf(stderr, "%s: [-v] [-m msr#] [-M MSR#] [-i interval_sec | command ...]\n", |
103a8fea LB |
1279 | progname); |
1280 | exit(1); | |
1281 | } | |
1282 | ||
1283 | ||
1284 | /* | |
1285 | * in /dev/cpu/ return success for names that are numbers | |
1286 | * ie. filter out ".", "..", "microcode". | |
1287 | */ | |
1288 | int dir_filter(const struct dirent *dirp) | |
1289 | { | |
1290 | if (isdigit(dirp->d_name[0])) | |
1291 | return 1; | |
1292 | else | |
1293 | return 0; | |
1294 | } | |
1295 | ||
1296 | int open_dev_cpu_msr(int dummy1) | |
1297 | { | |
1298 | return 0; | |
1299 | } | |
1300 | ||
c98d5d94 LB |
1301 | void topology_probe() |
1302 | { | |
1303 | int i; | |
1304 | int max_core_id = 0; | |
1305 | int max_package_id = 0; | |
1306 | int max_siblings = 0; | |
1307 | struct cpu_topology { | |
1308 | int core_id; | |
1309 | int physical_package_id; | |
1310 | } *cpus; | |
1311 | ||
1312 | /* Initialize num_cpus, max_cpu_num */ | |
1313 | topo.num_cpus = 0; | |
1314 | topo.max_cpu_num = 0; | |
1315 | for_all_proc_cpus(count_cpus); | |
1316 | if (!summary_only && topo.num_cpus > 1) | |
1317 | show_cpu = 1; | |
1318 | ||
1319 | if (verbose > 1) | |
1320 | fprintf(stderr, "num_cpus %d max_cpu_num %d\n", topo.num_cpus, topo.max_cpu_num); | |
1321 | ||
1322 | cpus = calloc(1, (topo.max_cpu_num + 1) * sizeof(struct cpu_topology)); | |
1323 | if (cpus == NULL) { | |
1324 | perror("calloc cpus"); | |
1325 | exit(1); | |
1326 | } | |
1327 | ||
1328 | /* | |
1329 | * Allocate and initialize cpu_present_set | |
1330 | */ | |
1331 | cpu_present_set = CPU_ALLOC((topo.max_cpu_num + 1)); | |
1332 | if (cpu_present_set == NULL) { | |
1333 | perror("CPU_ALLOC"); | |
1334 | exit(3); | |
1335 | } | |
1336 | cpu_present_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); | |
1337 | CPU_ZERO_S(cpu_present_setsize, cpu_present_set); | |
1338 | for_all_proc_cpus(mark_cpu_present); | |
1339 | ||
1340 | /* | |
1341 | * Allocate and initialize cpu_affinity_set | |
1342 | */ | |
1343 | cpu_affinity_set = CPU_ALLOC((topo.max_cpu_num + 1)); | |
1344 | if (cpu_affinity_set == NULL) { | |
1345 | perror("CPU_ALLOC"); | |
1346 | exit(3); | |
1347 | } | |
1348 | cpu_affinity_setsize = CPU_ALLOC_SIZE((topo.max_cpu_num + 1)); | |
1349 | CPU_ZERO_S(cpu_affinity_setsize, cpu_affinity_set); | |
1350 | ||
1351 | ||
1352 | /* | |
1353 | * For online cpus | |
1354 | * find max_core_id, max_package_id | |
1355 | */ | |
1356 | for (i = 0; i <= topo.max_cpu_num; ++i) { | |
1357 | int siblings; | |
1358 | ||
1359 | if (cpu_is_not_present(i)) { | |
1360 | if (verbose > 1) | |
1361 | fprintf(stderr, "cpu%d NOT PRESENT\n", i); | |
1362 | continue; | |
1363 | } | |
1364 | cpus[i].core_id = get_core_id(i); | |
1365 | if (cpus[i].core_id > max_core_id) | |
1366 | max_core_id = cpus[i].core_id; | |
1367 | ||
1368 | cpus[i].physical_package_id = get_physical_package_id(i); | |
1369 | if (cpus[i].physical_package_id > max_package_id) | |
1370 | max_package_id = cpus[i].physical_package_id; | |
1371 | ||
1372 | siblings = get_num_ht_siblings(i); | |
1373 | if (siblings > max_siblings) | |
1374 | max_siblings = siblings; | |
1375 | if (verbose > 1) | |
1376 | fprintf(stderr, "cpu %d pkg %d core %d\n", | |
1377 | i, cpus[i].physical_package_id, cpus[i].core_id); | |
1378 | } | |
1379 | topo.num_cores_per_pkg = max_core_id + 1; | |
1380 | if (verbose > 1) | |
1381 | fprintf(stderr, "max_core_id %d, sizing for %d cores per package\n", | |
1382 | max_core_id, topo.num_cores_per_pkg); | |
1383 | if (!summary_only && topo.num_cores_per_pkg > 1) | |
1384 | show_core = 1; | |
1385 | ||
1386 | topo.num_packages = max_package_id + 1; | |
1387 | if (verbose > 1) | |
1388 | fprintf(stderr, "max_package_id %d, sizing for %d packages\n", | |
1389 | max_package_id, topo.num_packages); | |
1390 | if (!summary_only && topo.num_packages > 1) | |
1391 | show_pkg = 1; | |
1392 | ||
1393 | topo.num_threads_per_core = max_siblings; | |
1394 | if (verbose > 1) | |
1395 | fprintf(stderr, "max_siblings %d\n", max_siblings); | |
1396 | ||
1397 | free(cpus); | |
1398 | } | |
1399 | ||
1400 | void | |
1401 | allocate_counters(struct thread_data **t, struct core_data **c, struct pkg_data **p) | |
1402 | { | |
1403 | int i; | |
1404 | ||
1405 | *t = calloc(topo.num_threads_per_core * topo.num_cores_per_pkg * | |
1406 | topo.num_packages, sizeof(struct thread_data)); | |
1407 | if (*t == NULL) | |
1408 | goto error; | |
1409 | ||
1410 | for (i = 0; i < topo.num_threads_per_core * | |
1411 | topo.num_cores_per_pkg * topo.num_packages; i++) | |
1412 | (*t)[i].cpu_id = -1; | |
1413 | ||
1414 | *c = calloc(topo.num_cores_per_pkg * topo.num_packages, | |
1415 | sizeof(struct core_data)); | |
1416 | if (*c == NULL) | |
1417 | goto error; | |
1418 | ||
1419 | for (i = 0; i < topo.num_cores_per_pkg * topo.num_packages; i++) | |
1420 | (*c)[i].core_id = -1; | |
1421 | ||
1422 | *p = calloc(topo.num_packages, sizeof(struct pkg_data)); | |
1423 | if (*p == NULL) | |
1424 | goto error; | |
1425 | ||
1426 | for (i = 0; i < topo.num_packages; i++) | |
1427 | (*p)[i].package_id = i; | |
1428 | ||
1429 | return; | |
1430 | error: | |
1431 | perror("calloc counters"); | |
1432 | exit(1); | |
1433 | } | |
1434 | /* | |
1435 | * init_counter() | |
1436 | * | |
1437 | * set cpu_id, core_num, pkg_num | |
1438 | * set FIRST_THREAD_IN_CORE and FIRST_CORE_IN_PACKAGE | |
1439 | * | |
1440 | * increment topo.num_cores when 1st core in pkg seen | |
1441 | */ | |
1442 | void init_counter(struct thread_data *thread_base, struct core_data *core_base, | |
1443 | struct pkg_data *pkg_base, int thread_num, int core_num, | |
1444 | int pkg_num, int cpu_id) | |
1445 | { | |
1446 | struct thread_data *t; | |
1447 | struct core_data *c; | |
1448 | struct pkg_data *p; | |
1449 | ||
1450 | t = GET_THREAD(thread_base, thread_num, core_num, pkg_num); | |
1451 | c = GET_CORE(core_base, core_num, pkg_num); | |
1452 | p = GET_PKG(pkg_base, pkg_num); | |
1453 | ||
1454 | t->cpu_id = cpu_id; | |
1455 | if (thread_num == 0) { | |
1456 | t->flags |= CPU_IS_FIRST_THREAD_IN_CORE; | |
1457 | if (cpu_is_first_core_in_package(cpu_id)) | |
1458 | t->flags |= CPU_IS_FIRST_CORE_IN_PACKAGE; | |
1459 | } | |
1460 | ||
1461 | c->core_id = core_num; | |
1462 | p->package_id = pkg_num; | |
1463 | } | |
1464 | ||
1465 | ||
1466 | int initialize_counters(int cpu_id) | |
1467 | { | |
1468 | int my_thread_id, my_core_id, my_package_id; | |
1469 | ||
1470 | my_package_id = get_physical_package_id(cpu_id); | |
1471 | my_core_id = get_core_id(cpu_id); | |
1472 | ||
1473 | if (cpu_is_first_sibling_in_core(cpu_id)) { | |
1474 | my_thread_id = 0; | |
1475 | topo.num_cores++; | |
1476 | } else { | |
1477 | my_thread_id = 1; | |
1478 | } | |
1479 | ||
1480 | init_counter(EVEN_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); | |
1481 | init_counter(ODD_COUNTERS, my_thread_id, my_core_id, my_package_id, cpu_id); | |
1482 | return 0; | |
1483 | } | |
1484 | ||
1485 | void allocate_output_buffer() | |
1486 | { | |
1487 | output_buffer = calloc(1, (1 + topo.num_cpus) * 128); | |
1488 | outp = output_buffer; | |
1489 | if (outp == NULL) { | |
1490 | perror("calloc"); | |
1491 | exit(-1); | |
1492 | } | |
1493 | } | |
1494 | ||
1495 | void setup_all_buffers(void) | |
1496 | { | |
1497 | topology_probe(); | |
1498 | allocate_counters(&thread_even, &core_even, &package_even); | |
1499 | allocate_counters(&thread_odd, &core_odd, &package_odd); | |
1500 | allocate_output_buffer(); | |
1501 | for_all_proc_cpus(initialize_counters); | |
1502 | } | |
103a8fea LB |
1503 | void turbostat_init() |
1504 | { | |
1505 | check_cpuid(); | |
1506 | ||
1507 | check_dev_msr(); | |
1508 | check_super_user(); | |
1509 | ||
c98d5d94 | 1510 | setup_all_buffers(); |
103a8fea LB |
1511 | |
1512 | if (verbose) | |
c98d5d94 | 1513 | print_verbose_header(); |
103a8fea LB |
1514 | } |
1515 | ||
1516 | int fork_it(char **argv) | |
1517 | { | |
103a8fea | 1518 | pid_t child_pid; |
d15cf7c1 | 1519 | |
c98d5d94 LB |
1520 | for_all_cpus(get_counters, EVEN_COUNTERS); |
1521 | /* clear affinity side-effect of get_counters() */ | |
1522 | sched_setaffinity(0, cpu_present_setsize, cpu_present_set); | |
103a8fea LB |
1523 | gettimeofday(&tv_even, (struct timezone *)NULL); |
1524 | ||
1525 | child_pid = fork(); | |
1526 | if (!child_pid) { | |
1527 | /* child */ | |
1528 | execvp(argv[0], argv); | |
1529 | } else { | |
1530 | int status; | |
1531 | ||
1532 | /* parent */ | |
1533 | if (child_pid == -1) { | |
1534 | perror("fork"); | |
1535 | exit(1); | |
1536 | } | |
1537 | ||
1538 | signal(SIGINT, SIG_IGN); | |
1539 | signal(SIGQUIT, SIG_IGN); | |
1540 | if (waitpid(child_pid, &status, 0) == -1) { | |
1541 | perror("wait"); | |
1542 | exit(1); | |
1543 | } | |
1544 | } | |
c98d5d94 LB |
1545 | /* |
1546 | * n.b. fork_it() does not check for errors from for_all_cpus() | |
1547 | * because re-starting is problematic when forking | |
1548 | */ | |
1549 | for_all_cpus(get_counters, ODD_COUNTERS); | |
103a8fea | 1550 | gettimeofday(&tv_odd, (struct timezone *)NULL); |
103a8fea | 1551 | timersub(&tv_odd, &tv_even, &tv_delta); |
c98d5d94 LB |
1552 | for_all_cpus_2(delta_cpu, ODD_COUNTERS, EVEN_COUNTERS); |
1553 | compute_average(EVEN_COUNTERS); | |
1554 | format_all_counters(EVEN_COUNTERS); | |
1555 | flush_stderr(); | |
103a8fea | 1556 | |
6eab04a8 | 1557 | fprintf(stderr, "%.6f sec\n", tv_delta.tv_sec + tv_delta.tv_usec/1000000.0); |
103a8fea LB |
1558 | |
1559 | return 0; | |
1560 | } | |
1561 | ||
1562 | void cmdline(int argc, char **argv) | |
1563 | { | |
1564 | int opt; | |
1565 | ||
1566 | progname = argv[0]; | |
1567 | ||
2f32edf1 | 1568 | while ((opt = getopt(argc, argv, "+cpsvi:m:M:")) != -1) { |
103a8fea | 1569 | switch (opt) { |
c98d5d94 LB |
1570 | case 'c': |
1571 | show_core_only++; | |
1572 | break; | |
1573 | case 'p': | |
1574 | show_pkg_only++; | |
1575 | break; | |
e23da037 LB |
1576 | case 's': |
1577 | summary_only++; | |
1578 | break; | |
103a8fea LB |
1579 | case 'v': |
1580 | verbose++; | |
1581 | break; | |
1582 | case 'i': | |
1583 | interval_sec = atoi(optarg); | |
1584 | break; | |
2f32edf1 LB |
1585 | case 'm': |
1586 | sscanf(optarg, "%x", &extra_msr_offset32); | |
1587 | if (verbose > 1) | |
1588 | fprintf(stderr, "msr 0x%X\n", extra_msr_offset32); | |
1589 | break; | |
103a8fea | 1590 | case 'M': |
2f32edf1 | 1591 | sscanf(optarg, "%x", &extra_msr_offset64); |
103a8fea | 1592 | if (verbose > 1) |
2f32edf1 | 1593 | fprintf(stderr, "MSR 0x%X\n", extra_msr_offset64); |
103a8fea LB |
1594 | break; |
1595 | default: | |
1596 | usage(); | |
1597 | } | |
1598 | } | |
1599 | } | |
1600 | ||
1601 | int main(int argc, char **argv) | |
1602 | { | |
1603 | cmdline(argc, argv); | |
1604 | ||
1605 | if (verbose > 1) | |
c98d5d94 | 1606 | fprintf(stderr, "turbostat v2.0 May 16, 2012" |
103a8fea | 1607 | " - Len Brown <lenb@kernel.org>\n"); |
103a8fea LB |
1608 | |
1609 | turbostat_init(); | |
1610 | ||
1611 | /* | |
1612 | * if any params left, it must be a command to fork | |
1613 | */ | |
1614 | if (argc - optind) | |
1615 | return fork_it(argv + optind); | |
1616 | else | |
1617 | turbostat_loop(); | |
1618 | ||
1619 | return 0; | |
1620 | } |