diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index ce641ccfcf81..161f38476e77 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -120,6 +120,7 @@ static struct test_suite **tests[] = { static struct test_workload *workloads[] = { &workload__noploop, + &workload__thloop, }; static int num_subtests(const struct test_suite *t) diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index d315d0d6fc97..e6edfeeadaeb 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -201,5 +201,6 @@ struct test_workload workload__##work = { \ /* The list of test workloads */ DECLARE_WORKLOAD(noploop); +DECLARE_WORKLOAD(thloop); #endif /* TESTS_H */ diff --git a/tools/perf/tests/workloads/Build b/tools/perf/tests/workloads/Build index f98e968d4633..b8964b1099c0 100644 --- a/tools/perf/tests/workloads/Build +++ b/tools/perf/tests/workloads/Build @@ -1,3 +1,4 @@ # SPDX-License-Identifier: GPL-2.0 perf-y += noploop.o +perf-y += thloop.o diff --git a/tools/perf/tests/workloads/thloop.c b/tools/perf/tests/workloads/thloop.c new file mode 100644 index 000000000000..29193b75717e --- /dev/null +++ b/tools/perf/tests/workloads/thloop.c @@ -0,0 +1,53 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include +#include +#include +#include +#include "../tests.h" + +static volatile sig_atomic_t done; +static volatile unsigned count; + +/* We want to check this symbol in perf report */ +noinline void test_loop(void); + +static void sighandler(int sig __maybe_unused) +{ + done = 1; +} + +noinline void test_loop(void) +{ + while (!done) + count++; +} + +static void *thfunc(void *arg) +{ + void (*loop_fn)(void) = arg; + + loop_fn(); + return NULL; +} + +static int thloop(int argc, const char **argv) +{ + int sec = 1; + pthread_t th; + + if (argc > 0) + sec = atoi(argv[0]); + + signal(SIGINT, sighandler); + signal(SIGALRM, sighandler); + alarm(sec); + + pthread_create(&th, NULL, thfunc, test_loop); + test_loop(); + pthread_join(th, NULL); + + return 0; +} + +DEFINE_WORKLOAD(thloop);