diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index 2064a640facb..11b69023011b 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -103,3 +103,5 @@ endif CFLAGS_attr.o += -DBINDIR="BUILD_STR($(bindir_SQ))" -DPYTHON="BUILD_STR($(PYTHON_WORD))" CFLAGS_python-use.o += -DPYTHONPATH="BUILD_STR($(OUTPUT)python)" -DPYTHON="BUILD_STR($(PYTHON_WORD))" CFLAGS_dwarf-unwind.o += -fno-optimize-sibling-calls + +perf-y += workloads/ diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 7122eae1d98d..ce641ccfcf81 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -118,6 +118,10 @@ static struct test_suite **tests[] = { arch_tests, }; +static struct test_workload *workloads[] = { + &workload__noploop, +}; + static int num_subtests(const struct test_suite *t) { int num; @@ -475,6 +479,21 @@ static int perf_test__list(int argc, const char **argv) return 0; } +static int run_workload(const char *work, int argc, const char **argv) +{ + unsigned int i = 0; + struct test_workload *twl; + + for (i = 0; i < ARRAY_SIZE(workloads); i++) { + twl = workloads[i]; + if (!strcmp(twl->name, work)) + return twl->func(argc, argv); + } + + pr_info("No workload found: %s\n", work); + return -1; +} + int cmd_test(int argc, const char **argv) { const char *test_usage[] = { @@ -482,12 +501,14 @@ int cmd_test(int argc, const char **argv) NULL, }; const char *skip = NULL; + const char *workload = NULL; const struct option test_options[] = { OPT_STRING('s', "skip", &skip, "tests", "tests to skip"), OPT_INCR('v', "verbose", &verbose, "be more verbose (show symbol address, etc)"), OPT_BOOLEAN('F', "dont-fork", &dont_fork, "Do not fork for testcase"), + OPT_STRING('w', "workload", &workload, "work", "workload to run for testing"), OPT_END() }; const char * const test_subcommands[] = { "list", NULL }; @@ -504,6 +525,9 @@ int cmd_test(int argc, const char **argv) if (argc >= 1 && !strcmp(argv[0], "list")) return perf_test__list(argc - 1, argv + 1); + if (workload) + return run_workload(workload, argc, argv); + symbol_conf.priv_size = sizeof(int); symbol_conf.sort_by_name = true; symbol_conf.try_vmlinux_path = true; diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 5bbb8f6a48fc..d315d0d6fc97 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -180,4 +180,26 @@ int test__arch_unwind_sample(struct perf_sample *sample, DECLARE_SUITE(vectors_page); #endif +/* + * Define test workloads to be used in test suites. + */ +typedef int (*workload_fnptr)(int argc, const char **argv); + +struct test_workload { + const char *name; + workload_fnptr func; +}; + +#define DECLARE_WORKLOAD(work) \ + extern struct test_workload workload__##work + +#define DEFINE_WORKLOAD(work) \ +struct test_workload workload__##work = { \ + .name = #work, \ + .func = work, \ +} + +/* The list of test workloads */ +DECLARE_WORKLOAD(noploop); + #endif /* TESTS_H */ diff --git a/tools/perf/tests/workloads/Build b/tools/perf/tests/workloads/Build new file mode 100644 index 000000000000..f98e968d4633 --- /dev/null +++ b/tools/perf/tests/workloads/Build @@ -0,0 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0 + +perf-y += noploop.o diff --git a/tools/perf/tests/workloads/noploop.c b/tools/perf/tests/workloads/noploop.c new file mode 100644 index 000000000000..940ea5910a84 --- /dev/null +++ b/tools/perf/tests/workloads/noploop.c @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#include +#include +#include +#include +#include "../tests.h" + +static volatile sig_atomic_t done; + +static void sighandler(int sig __maybe_unused) +{ + done = 1; +} + +static int noploop(int argc, const char **argv) +{ + int sec = 1; + + if (argc > 0) + sec = atoi(argv[0]); + + signal(SIGINT, sighandler); + signal(SIGALRM, sighandler); + alarm(sec); + + while (!done) + continue; + + return 0; +} + +DEFINE_WORKLOAD(noploop);