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perf test cs-etm: Remove duplicate branch tests

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We already test branch output in perf script mode, but then retest it in
Perf report mode. This is more of a test of Perf itself than Coresight
because Perf uses the same samples to generate both outputs. Also we're
already testing instruction output in Perf report mode.

Remove this test for a speedup. On the systemwide test also remove the
Perf report test because systemwide mode records a lot more data so
running multiple tests on it has a big runtime impact.

Reviewed-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Cc: Amir Ayupov <aaupov@meta.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mike Leach <mike.leach@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paschalis Mpeis <Paschalis.Mpeis@arm.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
James Clark 2026-06-09 15:40:16 +01:00 committed by Arnaldo Carvalho de Melo
parent 0b6d6376d7
commit f8fabdccde
1 changed files with 1 additions and 17 deletions
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18
tools/perf/tests/shell/test_arm_coresight.sh
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@ -52,17 +52,6 @@ perf_script_branch_samples() {
grep -E " +$1 +[0-9]+ .* +branches:(.*:)? +" > /dev/null 2>&1
}
perf_report_branch_samples() {
echo "Looking at perf.data file for reporting branch samples:"
# Below is an example of the branch samples reporting:
# 73.04% 73.04% touch libc-2.27.so [.] _dl_addr
# 7.71% 7.71% touch libc-2.27.so [.] getenv
# 2.59% 2.59% touch ld-2.27.so [.] strcmp
perf report --stdio -i ${perfdata} 2>&1 | \
grep -E " +[0-9]+\.[0-9]+% +[0-9]+\.[0-9]+% +$1 " > /dev/null 2>&1
}
perf_report_instruction_samples() {
echo "Looking at perf.data file for instruction samples:"
@ -123,7 +112,6 @@ arm_cs_iterate_devices() {
record_touch_file $device_name $2 &&
perf_script_branch_samples touch &&
perf_report_branch_samples touch &&
perf_report_instruction_samples touch
err=$?
@ -154,9 +142,7 @@ arm_cs_etm_system_wide_test() {
# System-wide mode should include perf samples so test for that
# instead of ls
perf_script_branch_samples perf &&
perf_report_branch_samples perf &&
perf_report_instruction_samples perf
perf_script_branch_samples perf
err=$?
arm_cs_report "CoreSight system wide testing" $err
@ -179,7 +165,6 @@ arm_cs_etm_snapshot_test() {
wait $PERFPID
perf_script_branch_samples dd &&
perf_report_branch_samples dd &&
perf_report_instruction_samples dd
err=$?
@ -191,7 +176,6 @@ arm_cs_etm_basic_test() {
perf record -o ${perfdata} "$@" -m,8M -- ls > /dev/null 2>&1
perf_script_branch_samples ls &&
perf_report_branch_samples ls &&
perf_report_instruction_samples ls
err=$?