From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 105/107] libperf: Add perf_evsel__enable/disable test Date: Mon, 29 Jul 2019 23:56:08 -0300 Message-ID: <20190730025610.22603-106-acme@kernel.org> References: <20190730025610.22603-1-acme@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190730025610.22603-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar , Thomas Gleixner Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Alexander Shishkin , Alexey Budankov , Andi Kleen , Michael Petlan , Peter Zijlstra List-Id: linux-perf-users.vger.kernel.org From: Jiri Olsa Add simple perf_evsel enable/disable test together with evsel counter reading interface. Committer testing: # make -C tools/perf/lib tests make: Entering directory '/home/acme/git/perf/tools/perf/lib' LINK test-cpumap-a LINK test-threadmap-a LINK test-evlist-a LINK test-evsel-a LINK test-cpumap-so LINK test-threadmap-so LINK test-evlist-so LINK test-evsel-so running static: - running test-cpumap.c...OK - running test-threadmap.c...OK - running test-evlist.c...OK - running test-evsel.c...OK running dynamic: - running test-cpumap.c...OK - running test-threadmap.c...OK - running test-evlist.c...OK - running test-evsel.c...OK make: Leaving directory '/home/acme/git/perf/tools/perf/lib' # Signed-off-by: Jiri Olsa Tested-by: Arnaldo Carvalho de Melo Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190721112506.12306-79-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/lib/tests/test-evsel.c | 43 +++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/tools/perf/lib/tests/test-evsel.c b/tools/perf/lib/tests/test-evsel.c index 268712292f60..2c648fe5617e 100644 --- a/tools/perf/lib/tests/test-evsel.c +++ b/tools/perf/lib/tests/test-evsel.c @@ -70,12 +70,55 @@ static int test_stat_thread(void) return 0; } +static int test_stat_thread_enable(void) +{ + struct perf_counts_values counts = { .val = 0 }; + struct perf_thread_map *threads; + struct perf_evsel *evsel; + struct perf_event_attr attr = { + .type = PERF_TYPE_SOFTWARE, + .config = PERF_COUNT_SW_TASK_CLOCK, + .disabled = 1, + }; + int err; + + threads = perf_thread_map__new_dummy(); + __T("failed to create threads", threads); + + perf_thread_map__set_pid(threads, 0, 0); + + evsel = perf_evsel__new(&attr); + __T("failed to create evsel", evsel); + + err = perf_evsel__open(evsel, NULL, threads); + __T("failed to open evsel", err == 0); + + perf_evsel__read(evsel, 0, 0, &counts); + __T("failed to read value for evsel", counts.val == 0); + + err = perf_evsel__enable(evsel); + __T("failed to enable evsel", err == 0); + + perf_evsel__read(evsel, 0, 0, &counts); + __T("failed to read value for evsel", counts.val != 0); + + err = perf_evsel__disable(evsel); + __T("failed to enable evsel", err == 0); + + perf_evsel__close(evsel); + perf_evsel__delete(evsel); + + perf_thread_map__put(threads); + return 0; +} + int main(int argc, char **argv) { __T_START; test_stat_cpu(); test_stat_thread(); + test_stat_thread_enable(); __T_OK; return 0; -- 2.21.0