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perf test cs-etm: Speed up basic test

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Like the name says, this should be the most basic test possible. Kernel
recording is slow and already has coverage on the systemwide test. Perf
report output also has coverage elsewhere. 'ls' also produces more trace
than 'true'.

We only want to test if the combination of recording options works at
all, so fix all of these things to make it as fast as possible.

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 15:40:19 +01:00 committed by Arnaldo Carvalho de Melo
parent c13fe5f075
commit 04d8a36625
1 changed files with 8 additions and 9 deletions
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17
tools/perf/tests/shell/test_arm_coresight.sh
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@ -179,10 +179,9 @@ arm_cs_etm_snapshot_test() {
arm_cs_etm_basic_test() {
echo "Recording trace with '$*'"
perf record -o ${perfdata} "$@" -m,8M -- ls > /dev/null 2>&1
perf record -o ${perfdata} "$@" -- true > /dev/null 2>&1
perf_script_branch_samples ls &&
perf_report_instruction_samples ls
perf_script_branch_samples true
err=$?
arm_cs_report "CoreSight basic testing with '$*'" $err
@ -246,12 +245,12 @@ arm_cs_etm_snapshot_test
# Test all combinations of per-thread, system-wide and normal mode with
# and without timestamps
arm_cs_etm_basic_test -e cs_etm/timestamp=0/ --per-thread
arm_cs_etm_basic_test -e cs_etm/timestamp=1/ --per-thread
arm_cs_etm_basic_test -e cs_etm/timestamp=0/ -a
arm_cs_etm_basic_test -e cs_etm/timestamp=1/ -a
arm_cs_etm_basic_test -e cs_etm/timestamp=0/
arm_cs_etm_basic_test -e cs_etm/timestamp=1/
arm_cs_etm_basic_test -e cs_etm/timestamp=0/u --per-thread
arm_cs_etm_basic_test -e cs_etm/timestamp=1/u --per-thread
arm_cs_etm_basic_test -e cs_etm/timestamp=0/u -a
arm_cs_etm_basic_test -e cs_etm/timestamp=1/u -a
arm_cs_etm_basic_test -e cs_etm/timestamp=0/u
arm_cs_etm_basic_test -e cs_etm/timestamp=1/u
arm_cs_etm_sparse_cpus_test