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authorIan Rogers <irogers@google.com>2020-07-28 01:57:32 -0700
committerArnaldo Carvalho de Melo <acme@redhat.com>2020-07-30 07:01:49 -0300
commit1b98c6e3ba8be09a2f988dc4b80de9b4b029b93f (patch)
treea91ee7c5d9902021cd5c05c016ff574b3979b32b
parent4929e95a1400e45b4b5a87fd3ce10273444187d4 (diff)
perf test: Ensure sample_period is set libpfm4 events
Test that a command line option doesn't override the period set on a libpfm4 event. Without libpfm4 test passes as unsupported. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andi Kleen <ak@linux.intel.com> Cc: Andrii Nakryiko <andriin@fb.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Jiri Olsa <jolsa@redhat.com> Cc: John Fastabend <john.fastabend@gmail.com> Cc: KP Singh <kpsingh@chromium.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Cc: Yonghong Song <yhs@fb.com> Cc: bpf@vger.kernel.org Cc: netdev@vger.kernel.org Link: http://lore.kernel.org/lkml/20200728085734.609930-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
-rw-r--r--tools/perf/tests/attr/README1
-rw-r--r--tools/perf/tests/attr/test-record-pfm-period9
2 files changed, 10 insertions, 0 deletions
diff --git a/tools/perf/tests/attr/README b/tools/perf/tests/attr/README
index 430024f618f1..6cd408108595 100644
--- a/tools/perf/tests/attr/README
+++ b/tools/perf/tests/attr/README
@@ -53,6 +53,7 @@ Following tests are defined (with perf commands):
perf record -i kill (test-record-no-inherit)
perf record -n kill (test-record-no-samples)
perf record -c 100 -P kill (test-record-period)
+ perf record -c 1 --pfm-events=cycles:period=2 (test-record-pfm-period)
perf record -R kill (test-record-raw)
perf stat -e cycles kill (test-stat-basic)
perf stat kill (test-stat-default)
diff --git a/tools/perf/tests/attr/test-record-pfm-period b/tools/perf/tests/attr/test-record-pfm-period
new file mode 100644
index 000000000000..368f5b814094
--- /dev/null
+++ b/tools/perf/tests/attr/test-record-pfm-period
@@ -0,0 +1,9 @@
+[config]
+command = record
+args = --no-bpf-event -c 10000 --pfm-events=cycles:period=77777 kill >/dev/null 2>&1
+ret = 1
+
+[event:base-record]
+sample_period=77777
+sample_type=7
+freq=0