Commit 22ddcb6b authored by Namhyung Kim's avatar Namhyung Kim Committed by Arnaldo Carvalho de Melo
Browse files

perf test: Update perf lock contention test 



Add test cases for the task and addr aggregation modes.

  $ sudo ./perf test -v contention
   86: kernel lock contention analysis test                            :
  --- start ---
  test child forked, pid 680006
  Testing perf lock record and perf lock contention
  Testing perf lock contention --use-bpf
  Testing perf lock record and perf lock contention at the same time
  Testing perf lock contention --threads
  Testing perf lock contention --lock-addr
  test child finished with 0
  ---- end ----
  kernel lock contention analysis test: Ok

Signed-off-by: default avatarNamhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20221209190727.759804-5-namhyung@kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 688d2e8d

tools/perf/tests/shell/lock_contention.sh

+48 −0
Original line number Diff line number Diff line
@@ -77,10 +77,58 @@ test_record_concurrent() 
	fi

}



test_aggr_task()

{

	echo "Testing perf lock contention --threads"

	perf lock contention -i ${perfdata} -t -E 1 -q 2> ${result}

	if [ $(cat "${result}" | wc -l) != "1" ]; then

		echo "[Fail] Recorded result count is not 1:" $(cat "${result}" | wc -l)

		err=1

		exit

	fi



	if ! perf lock con -b true > /dev/null 2>&1 ; then

		return

	fi



	# the perf lock contention output goes to the stderr

	perf lock con -a -b -t -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}

	if [ $(cat "${result}" | wc -l) != "1" ]; then

		echo "[Fail] BPF result count is not 1:" $(cat "${result}" | wc -l)

		err=1

		exit

	fi

}



test_aggr_addr()

{

	echo "Testing perf lock contention --lock-addr"

	perf lock contention -i ${perfdata} -l -E 1 -q 2> ${result}

	if [ $(cat "${result}" | wc -l) != "1" ]; then

		echo "[Fail] Recorded result count is not 1:" $(cat "${result}" | wc -l)

		err=1

		exit

	fi



	if ! perf lock con -b true > /dev/null 2>&1 ; then

		return

	fi



	# the perf lock contention output goes to the stderr

	perf lock con -a -b -t -E 1 -q -- perf bench sched messaging > /dev/null 2> ${result}

	if [ $(cat "${result}" | wc -l) != "1" ]; then

		echo "[Fail] BPF result count is not 1:" $(cat "${result}" | wc -l)

		err=1

		exit

	fi

}



check



test_record

test_bpf

test_record_concurrent

test_aggr_task

test_aggr_addr



exit ${err}