From 3b24b15cf6fb2dbe1d009a52c9ddcb7721503d8f Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 23 Nov 2023 09:58:47 +0200 Subject: perf tests: Make data symbol test wait for perf to start The perf data symbol test waits 1 second for perf to run and collect data, which may be too little if perf takes a long time to start up, which has been noticed on systems with many CPUs. Use existing wait_for_perf_to_start helper to wait for perf to start. Signed-off-by: Adrian Hunter Acked-by: Ian Rogers Cc: German Gomez Cc: James Clark Cc: Jiri Olsa Cc: Leo Yan Cc: Namhyung Kim Link: https://lore.kernel.org/r/20231123075848.9652-8-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/shell/test_data_symbol.sh | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'tools/perf/tests') diff --git a/tools/perf/tests/shell/test_data_symbol.sh b/tools/perf/tests/shell/test_data_symbol.sh index 69bb6fe86c50..e50e54e94f6f 100755 --- a/tools/perf/tests/shell/test_data_symbol.sh +++ b/tools/perf/tests/shell/test_data_symbol.sh @@ -4,6 +4,10 @@ # SPDX-License-Identifier: GPL-2.0 # Leo Yan , 2022 +shelldir=$(dirname "$0") +# shellcheck source=lib/waiting.sh +. "${shelldir}"/lib/waiting.sh + skip_if_no_mem_event() { perf mem record -e list 2>&1 | grep -E -q 'available' && return 0 return 2 @@ -13,6 +17,7 @@ skip_if_no_mem_event || exit 2 TEST_PROGRAM="perf test -w datasym" PERF_DATA=$(mktemp /tmp/__perf_test.perf.data.XXXXX) +ERR_FILE=$(mktemp /tmp/__perf_test.stderr.XXXXX) check_result() { # The memory report format is as below: @@ -50,13 +55,15 @@ echo "Recording workload..." # specific CPU and test in per-CPU mode. is_amd=$(grep -E -c 'vendor_id.*AuthenticAMD' /proc/cpuinfo) if (($is_amd >= 1)); then - perf mem record -o ${PERF_DATA} -C 0 -- taskset -c 0 $TEST_PROGRAM & + perf mem record -vvv -o ${PERF_DATA} -C 0 -- taskset -c 0 $TEST_PROGRAM 2>"${ERR_FILE}" & else - perf mem record --all-user -o ${PERF_DATA} -- $TEST_PROGRAM & + perf mem record -vvv --all-user -o ${PERF_DATA} -- $TEST_PROGRAM 2>"${ERR_FILE}" & fi PERFPID=$! +wait_for_perf_to_start ${PERFPID} "${ERR_FILE}" + sleep 1 kill $PERFPID -- cgit v1.2.3