starfive-tech/linux.git/tools/perf/tests, branch master

tools headers UAPI: Sync perf_event.h with the kernel sources

2021-05-10T12:01:01+00:00

To pick up the changes in: 2b26f0aa004995f4 ("perf: Support only inheriting events if cloned with CLONE_THREAD") 2e498d0a74e5b88a ("perf: Add support for event removal on exec") 547b60988e631f74 ("perf: aux: Add flags for the buffer format") 55bcf6ef314ae8ba ("perf: Extend PERF_TYPE_HARDWARE and PERF_TYPE_HW_CACHE") 7dde51767ca5339e ("perf: aux: Add CoreSight PMU buffer formats") 97ba62b278674293 ("perf: Add support for SIGTRAP on perf events") d0d1dd628527c77d ("perf core: Add PERF_COUNT_SW_CGROUP_SWITCHES event") Also change the expected sizeof(struct perf_event_attr) from 120 to 128 due to fields being added for the SIGTRAP changes. Addressing this perf build warning: Warning: Kernel ABI header at 'tools/include/uapi/linux/perf_event.h' differs from latest version at 'include/uapi/linux/perf_event.h' diff -u tools/include/uapi/linux/perf_event.h include/uapi/linux/perf_event.h Cc: Kan Liang Cc: Marco Elver Cc: Mathieu Poirier Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Suzuki K Poulose Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Skip 'perf stat metrics (shadow stat) test' for hybrid

2021-04-29T13:31:00+00:00

Currently we don't support shadow stat for hybrid. root@ssp-pwrt-002:~# ./perf stat -e cycles,instructions -a -- sleep 1 Performance counter stats for 'system wide': 12,883,109,591 cpu_core/cycles/ 6,405,163,221 cpu_atom/cycles/ 555,553,778 cpu_core/instructions/ 841,158,734 cpu_atom/instructions/ 1.002644773 seconds time elapsed Now there is no shadow stat 'insn per cycle' reported. We will support it later and now just skip the 'perf stat metrics (shadow stat) test'. Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Kan Liang Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427070139.25256-26-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Support 'Convert perf time to TSC' test for hybrid

2021-04-29T13:31:00+00:00

Since for "cycles:u' on hybrid platform, it creates two "cycles". So the second evsel in evlist also needs initialization. With this patch, # ./perf test 71 71: Convert perf time to TSC : Ok Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Kan Liang Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427070139.25256-25-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Support 'Session topology' test for hybrid

2021-04-29T13:31:00+00:00

Force to create one event "cpu_core/cycles/" by default, otherwise in evlist__valid_sample_type, the checking of 'if (evlist->core.nr_entries == 1)' would be failed. # ./perf test 41 41: Session topology : Ok Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Kan Liang Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427070139.25256-24-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Support 'Parse and process metrics' test for hybrid

2021-04-29T13:31:00+00:00

Some events are not supported. Only pick up some cases for hybrid. # ./perf test 68 68: Parse and process metrics : Ok Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Kan Liang Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427070139.25256-23-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Support 'Track with sched_switch' test for hybrid

2021-04-29T13:31:00+00:00

Since for "cycles:u' on hybrid platform, it creates two "cycles". So the number of events in evlist is not expected in next test steps. Now we just use one event "cpu_core/cycles:u/" for hybrid. # ./perf test 35 35: Track with sched_switch : Ok Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Kan Liang Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427070139.25256-22-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Skip 'Setup struct perf_event_attr' test for hybrid

2021-04-29T13:31:00+00:00

For hybrid, the attr.type consists of pmu type id + original type. There will be much changes for this test. Now we temporarily skip this test case and TODO in future. Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Kan Liang Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427070139.25256-21-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Add hybrid cases for 'Roundtrip evsel->name' test

2021-04-29T13:31:00+00:00

Since for one hw event, two hybrid events are created. For example, evsel->idx evsel__name(evsel) 0 cycles 1 cycles 2 instructions 3 instructions ... So for comparing the evsel name on hybrid, the evsel->idx needs to be divided by 2. # ./perf test 14 14: Roundtrip evsel->name : Ok Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Kan Liang Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427070139.25256-20-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf tests: Add hybrid cases for 'Parse event definition strings' test

2021-04-29T13:31:00+00:00

Add basic hybrid test cases for 'Parse event definition strings' test. # perf test 6 6: Parse event definition strings : Ok Signed-off-by: Jin Yao Reviewed-by: Jiri Olsa Cc: Alexander Shishkin Cc: Andi Kleen Cc: Ingo Molnar Cc: Kan Liang Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427070139.25256-19-yao.jin@linux.intel.com Signed-off-by: Arnaldo Carvalho de Melo

perf hists: Split hists_stats from events_stats

2021-04-29T13:30:58+00:00

Each struct hists have events_stats but most of the fields were not used. It's to count number of samples and periods whether filtered or not. And other fields are used only by evlist. So it'd be better to split hists_stats and events_stats to reduce wasted memory in the struct hists. This makes the output of event statistics in the perf report compact by skipping 0 events in each evsel/hists. Reviewed-by: Andi Kleen Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Ian Rogers Cc: Ingo Molnar Cc: Mark Rutland Cc: Peter Zijlstra Link: https://lore.kernel.org/r/20210427013717.1651674-3-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo