Lines Matching +full:stop +full:- +full:ack

1 // SPDX-License-Identifier: GPL-2.0-only
8 #include <subcmd/run-command.h>
10 #include "intel-tpebs.h"
27 #define PERF_DATA		"-"
30 static pid_t tpebs_pid = -1;
60 	record_argv[i++] = "-W";
61 	record_argv[i++] = "--synth=no";
66 		return -ECANCELED;
68 	/* Use -C when cpumap_buf is not "-1" */
69 	if (strcmp(cpumap_buf, "-1")) {
70 		record_argv[i++] = "-C";
75 		record_argv[i++] = "-e";
76 		record_argv[i++] = e->name;
79 	record_argv[i++] = "-o";
89 		return -ENOMEM;
90 	tpebs_cmd->argv = argv;
91 	tpebs_cmd->out = -1;
102 	scnprintf(buf, sizeof(buf), "--control=fd:%d,%d", control_fd[0], ack_fd[1]);
106 		return -ENOMEM;
139 		if (!strcmp(evname, t->name)) {
140 			t->count += 1;
141 			t->sum += sample->retire_lat;
142 			t->val = (double) t->sum / t->count;
153 	if (event->feat.feat_id < HEADER_LAST_FEATURE)
165 		.file.fd = child->out,
184  * tpebs_stop - stop the sample data read thread and the perf record process.
191 	if (tpebs_pid != -1) {
192 		kill(tpebs_cmd->pid, SIGTERM);
193 		tpebs_pid = -1;
195 		close(tpebs_cmd->out);
197 		if (ret == -ERR_RUN_COMMAND_WAITPID_SIGNAL)
204  * tpebs_start - start tpebs execution.
221 	if (tpebs_pid != -1 || !tpebs_recording)
224 	cpu_map__snprint(evsel_list->core.user_requested_cpus, cpumap_buf, sizeof(cpumap_buf));
234 		if (!evsel->retire_lat)
237 		pr_debug("tpebs: Retire_latency of event %s is required\n", evsel->name);
238 		for (i = strlen(evsel->name) - 1; i > 0; i--) {
239 			if (evsel->name[i] == 'R')
242 		if (i <= 0 || evsel->name[i] != 'R') {
243 			ret = -1;
247 		name = strdup(evsel->name);
249 			ret = -ENOMEM;
256 			ret = -1;
260 		new->name = name;
261 		new->tpebs_name = evsel->name;
262 		list_add_tail(&new->nd, &tpebs_results);
271 		/*Create control and ack fd for --control*/
274 			ret = -1;
279 			ret = -1;
286 		tpebs_pid = tpebs_cmd->pid;
288 			kill(tpebs_cmd->pid, SIGTERM);
289 			close(tpebs_cmd->out);
291 			ret = -1;
302 		/* wait for an ack */
311 			pr_err("tpebs failed: perf record ack timeout\n");
312 			ret = -1;
317 			pr_err("tpebs failed: did not received an ack\n");
318 			ret = -1;
326 			pr_err("tpebs: perf record control ack failed\n");
351 		return -1;
354 	 * Need to stop the forked record to ensure get sampled data from the
355 	 * PIPE to process and get non-zero retire_lat value for hybrid.
358 	count = perf_counts(evsel->counts, cpu_map_idx, thread);
361 		if (t->tpebs_name == evsel->name ||
362 		    (evsel->metric_id && !strcmp(t->tpebs_name, evsel->metric_id))) {
368 	/* Set ena and run to non-zero */
369 	count->ena = count->run = 1;
370 	count->lost = 0;
378 		count->val = 0;
386 		val = rint(t->val);
390 	count->val = val;
396 	zfree(&r->name);
402  * tpebs_delete - delete tpebs related data and stop the created thread and
405  * This function is called from evlist_delete() and also from builtin-stat
418 	if (tpebs_pid == -1)
424 		list_del_init(&r->nd);