Commit 880a7843 authored Sep 11, 2020 by Ian Rogers Committed by Arnaldo Carvalho de Melo Sep 14, 2020

perf test: Leader sampling shouldn't clear sample period



Add test that a sibling with leader sampling doesn't have its period
cleared.

Signed-off-by: Ian Rogers <irogers@google.com>
Acked-by: Jiri Olsa <jolsa@redhat.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: 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/20200912025655.1337192-5-irogers@google.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent 3b0a18c1

tools/perf/tests/attr/README

+1 −0

Original line number	Diff line number	Diff line
		@@ -49,6 +49,7 @@ Following tests are defined (with perf commands):
		perf record --call-graph fp kill (test-record-graph-fp)
		perf record --group -e cycles,instructions kill (test-record-group)
		perf record -e '{cycles,instructions}' kill (test-record-group1)
		perf record -e '{cycles/period=1/,instructions/period=2/}:S' kill (test-record-group2)
		perf record -D kill (test-record-no-delay)
		perf record -i kill (test-record-no-inherit)
		perf record -n kill (test-record-no-samples)

tools/perf/tests/attr/test-record-group2

0 → 100644

+29 −0

Original line number	Diff line number	Diff line
		[config]
		command = record
		args = --no-bpf-event -e '{cycles/period=1234000/,instructions/period=6789000/}:S' kill >/dev/null 2>&1
		ret = 1

		[event-1:base-record]
		fd=1
		group_fd=-1
		config=0\|1
		sample_period=1234000
		sample_type=87
		read_format=12
		inherit=0
		freq=0

		[event-2:base-record]
		fd=2
		group_fd=1
		config=0\|1
		sample_period=6789000
		sample_type=87
		read_format=12
		disabled=0
		inherit=0
		mmap=0
		comm=0
		freq=0
		enable_on_exec=0
		task=0

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