perf/bench/synthesize.c

1 // SPDX-License-Identifier: GPL-2.0
14 #include "../util/synthetic-events.h"
22 #include <subcmd/parse-options.h>
32 	OPT_BOOLEAN('s', "st", &run_st, "Run single threaded benchmark"),
33 	OPT_BOOLEAN('t', "mt", &run_mt, "Run multi-threaded benchmark"),
34 	OPT_UINTEGER('m', "min-threads", &min_threads,
36 	OPT_UINTEGER('M', "max-threads", &max_threads,
38 	OPT_UINTEGER('i', "single-iterations", &single_iterations,
39 		"Number of iterations used to compute single-threaded average"),
40 	OPT_UINTEGER('I', "multi-iterations", &multi_iterations,
41 		"Number of iterations used to compute multi-threaded average"),
66 	struct timeval start, end, diff;  in do_run_single_threaded()  local
79 		err = __machine__synthesize_threads(&session->machines.host,  in do_run_single_threaded()
88 		gettimeofday(&end, NULL);  in do_run_single_threaded()
89 		timersub(&end, &start, &diff);  in do_run_single_threaded()
97 	printf("  Average %ssynthesis took: %.3f usec (+- %.3f usec)\n",  in do_run_single_threaded()
102 	printf("  Average num. events: %.3f (+- %.3f)\n",  in do_run_single_threaded()
128 		err = -ENOMEM;  in run_single_threaded()
133 "Computing performance of single threaded perf event synthesis by\n"  in run_single_threaded()
153 	struct timeval start, end, diff;  in do_run_multi_threaded()  local
170 		err = __machine__synthesize_threads(&session->machines.host,  in do_run_multi_threaded()
181 		gettimeofday(&end, NULL);  in do_run_multi_threaded()
182 		timersub(&end, &start, &diff);  in do_run_multi_threaded()
191 	printf("    Average synthesis took: %.3f usec (+- %.3f usec)\n",  in do_run_multi_threaded()
196 	printf("    Average num. events: %.3f (+- %.3f)\n",  in do_run_multi_threaded()
249 	 * If neither single threaded or multi-threaded are specified, default  in bench_synthesize()
250 	 * to running just single threaded.  in bench_synthesize()