1 // SPDX-License-Identifier: GPL-2.0
15 #include "util/sample.h"
19 	int i, cpu = -1, nrcpus = 1024;  in sched__get_first_possible_cpu()
23 	if (sched_getaffinity(pid, sizeof(*maskp), maskp) == -1) {  in sched__get_first_possible_cpu()
29 			return -1;  in sched__get_first_possible_cpu()
34 			if (cpu == -1)  in sched__get_first_possible_cpu()
58 	struct perf_sample sample;  in test__PERF_RECORD()  local
68 	int err = -1, errs = 0, i, wakeups = 0;  in test__PERF_RECORD()
83 	 * we start with all threads and cpus (-1, -1) but then in  in test__PERF_RECORD()
96 	 * so that we have time to open the evlist (calling sys_perf_event_open  in test__PERF_RECORD()
106 	 * Config the evsels, setting attr->comm on the first one, etc.  in test__PERF_RECORD()
111 	evsel__set_sample_bit(evsel, TIME);  in test__PERF_RECORD()
114 	err = sched__get_first_possible_cpu(evlist->workload.pid, &cpu_mask);  in test__PERF_RECORD()
126 	if (sched_setaffinity(evlist->workload.pid, cpu_mask_size, &cpu_mask) < 0) {  in test__PERF_RECORD()
169 		for (i = 0; i < evlist->core.nr_mmaps; i++) {  in test__PERF_RECORD()
173 			md = &evlist->mmap[i];  in test__PERF_RECORD()
174 			if (perf_mmap__read_init(&md->core) < 0)  in test__PERF_RECORD()
177 			while ((event = perf_mmap__read_event(&md->core)) != NULL) {  in test__PERF_RECORD()
178 				const u32 type = event->header.type;  in test__PERF_RECORD()
185 				err = evlist__parse_sample(evlist, event, &sample);  in test__PERF_RECORD()
189 					pr_debug("Couldn't parse sample\n");  in test__PERF_RECORD()
194 					pr_info("%" PRIu64" %d ", sample.time, sample.cpu);  in test__PERF_RECORD()
198 				if (prev_time > sample.time) {  in test__PERF_RECORD()
199 					pr_debug("%s going backwards in time, prev=%" PRIu64 ", curr=%" PRIu64 "\n",  in test__PERF_RECORD()
200 						 name, prev_time, sample.time);  in test__PERF_RECORD()
204 				prev_time = sample.time;  in test__PERF_RECORD()
206 				if (sample.cpu != cpu) {  in test__PERF_RECORD()
208 						 name, cpu, sample.cpu);  in test__PERF_RECORD()
212 				if ((pid_t)sample.pid != evlist->workload.pid) {  in test__PERF_RECORD()
214 						 name, evlist->workload.pid, sample.pid);  in test__PERF_RECORD()
218 				if ((pid_t)sample.tid != evlist->workload.pid) {  in test__PERF_RECORD()
220 						 name, evlist->workload.pid, sample.tid);  in test__PERF_RECORD()
229 				     (pid_t)event->comm.pid != evlist->workload.pid) {  in test__PERF_RECORD()
237 				     event->comm.pid != event->comm.tid) {  in test__PERF_RECORD()
244 					if (strcmp(event->comm.comm, cmd)) {  in test__PERF_RECORD()
252 					mmap_filename = event->mmap.filename;  in test__PERF_RECORD()
255 					mmap_filename = event->mmap2.filename;  in test__PERF_RECORD()
275 					pr_debug("Unexpected perf_event->header.type %d!\n",  in test__PERF_RECORD()
280 				perf_mmap__consume(&md->core);  in test__PERF_RECORD()
282 			perf_mmap__read_done(&md->core);  in test__PERF_RECORD()
287 		 * PERF_RECORD_{!SAMPLE} events don't honour  in test__PERF_RECORD()
291 			evlist__poll(evlist, -1);  in test__PERF_RECORD()
333 	if (err == -EACCES)  in test__PERF_RECORD()