builtin-stat.c (1241eb8f136bf3ea409f61590e7663465906d158) builtin-stat.c (44175b6f397a6724121eeaf0f072e2c912a46614)
1/*
2 * builtin-stat.c
3 *
4 * Builtin stat command: Give a precise performance counters summary
5 * overview about any workload, CPU or specific PID.
6 *
7 * Sample output:
8

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179 if (attrs[counter].type == PERF_TYPE_SOFTWARE &&
180 attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK)
181 runtime_nsecs = count[0];
182 if (attrs[counter].type == PERF_TYPE_HARDWARE &&
183 attrs[counter].config == PERF_COUNT_HW_CPU_CYCLES)
184 runtime_cycles = count[0];
185}
186
1/*
2 * builtin-stat.c
3 *
4 * Builtin stat command: Give a precise performance counters summary
5 * overview about any workload, CPU or specific PID.
6 *
7 * Sample output:
8

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179 if (attrs[counter].type == PERF_TYPE_SOFTWARE &&
180 attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK)
181 runtime_nsecs = count[0];
182 if (attrs[counter].type == PERF_TYPE_HARDWARE &&
183 attrs[counter].config == PERF_COUNT_HW_CPU_CYCLES)
184 runtime_cycles = count[0];
185}
186
187static void nsec_printout(int counter, __u64 *count)
188{
189 double msecs = (double)count[0] / 1000000;
190
191 fprintf(stderr, " %14.6f %-20s", msecs, event_name(counter));
192
193 if (attrs[counter].type == PERF_TYPE_SOFTWARE &&
194 attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK) {
195
196 if (walltime_nsecs)
197 fprintf(stderr, " # %10.3f CPUs",
198 (double)count[0] / (double)walltime_nsecs);
199 }
200}
201
202static void abs_printout(int counter, __u64 *count)
203{
204 fprintf(stderr, " %14Ld %-20s", count[0], event_name(counter));
205
206 if (runtime_cycles &&
207 attrs[counter].type == PERF_TYPE_HARDWARE &&
208 attrs[counter].config == PERF_COUNT_HW_INSTRUCTIONS) {
209
210 fprintf(stderr, " # %10.3f IPC",
211 (double)count[0] / (double)runtime_cycles);
212
213 return;
214 }
215
216 if (runtime_nsecs)
217 fprintf(stderr, " # %10.3f M/sec",
218 (double)count[0]/runtime_nsecs*1000.0);
219}
220
187/*
188 * Print out the results of a single counter:
189 */
190static void print_counter(int counter)
191{
192 __u64 *count;
193 int scaled;
194
195 count = event_res[counter];
196 scaled = event_scaled[counter];
197
198 if (scaled == -1) {
199 fprintf(stderr, " %14s %-20s\n",
200 "<not counted>", event_name(counter));
201 return;
202 }
203
221/*
222 * Print out the results of a single counter:
223 */
224static void print_counter(int counter)
225{
226 __u64 *count;
227 int scaled;
228
229 count = event_res[counter];
230 scaled = event_scaled[counter];
231
232 if (scaled == -1) {
233 fprintf(stderr, " %14s %-20s\n",
234 "<not counted>", event_name(counter));
235 return;
236 }
237
204 if (nsec_counter(counter)) {
205 double msecs = (double)count[0] / 1000000;
238 if (nsec_counter(counter))
239 nsec_printout(counter, count);
240 else
241 abs_printout(counter, count);
206
242
207 fprintf(stderr, " %14.6f %-20s",
208 msecs, event_name(counter));
209 if (attrs[counter].type == PERF_TYPE_SOFTWARE &&
210 attrs[counter].config == PERF_COUNT_SW_TASK_CLOCK) {
211
212 if (walltime_nsecs)
213 fprintf(stderr, " # %11.3f CPU utilization factor",
214 (double)count[0] / (double)walltime_nsecs);
215 }
216 } else {
217 fprintf(stderr, " %14Ld %-20s",
218 count[0], event_name(counter));
219 if (runtime_nsecs)
220 fprintf(stderr, " # %11.3f M/sec",
221 (double)count[0]/runtime_nsecs*1000.0);
222 if (runtime_cycles &&
223 attrs[counter].type == PERF_TYPE_HARDWARE &&
224 attrs[counter].config == PERF_COUNT_HW_INSTRUCTIONS) {
225
226 fprintf(stderr, " # %1.3f per cycle",
227 (double)count[0] / (double)runtime_cycles);
228 }
229 }
230 if (scaled)
231 fprintf(stderr, " (scaled from %.2f%%)",
232 (double) count[2] / count[1] * 100);
243 if (scaled)
244 fprintf(stderr, " (scaled from %.2f%%)",
245 (double) count[2] / count[1] * 100);
246
233 fprintf(stderr, "\n");
234}
235
236static int do_perf_stat(int argc, const char **argv)
237{
238 unsigned long long t0, t1;
239 int counter;
240 int status;

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285 for (counter = 0; counter < nr_counters; counter++)
286 read_counter(counter);
287
288 for (counter = 0; counter < nr_counters; counter++)
289 print_counter(counter);
290
291
292 fprintf(stderr, "\n");
247 fprintf(stderr, "\n");
248}
249
250static int do_perf_stat(int argc, const char **argv)
251{
252 unsigned long long t0, t1;
253 int counter;
254 int status;

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299 for (counter = 0; counter < nr_counters; counter++)
300 read_counter(counter);
301
302 for (counter = 0; counter < nr_counters; counter++)
303 print_counter(counter);
304
305
306 fprintf(stderr, "\n");
293 fprintf(stderr, " Wall-clock time elapsed: %12.6f msecs\n",
294 (double)(t1-t0)/1e6);
307 fprintf(stderr, " %14.9f seconds time elapsed.\n", (double)(t1-t0)/1e9);
295 fprintf(stderr, "\n");
296
297 return 0;
298}
299
300static volatile int signr = -1;
301
302static void skip_signal(int signo)

--- 65 unchanged lines hidden --- 		308 fprintf(stderr, "\n");
309
310 return 0;
311}
312
313static volatile int signr = -1;
314
315static void skip_signal(int signo)

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