[PATCH v5 13/19] perf test cs-etm: Reduce snapshot size

[James Clark]

The default buffer size for root is 4MB which is very slow to decode. We
only need a few KB to verify that the dd process is hit so reduce the
size to 128KB.

Reviewed-by: Leo Yan <leo.yan@xxxxxxx>
Signed-off-by: James Clark <james.clark@xxxxxxxxxx>
---
 tools/perf/tests/shell/test_arm_coresight.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/test_arm_coresight.sh b/tools/perf/tests/shell/test_arm_coresight.sh
index 8ed2c934c87d..da2f599393e2 100755
--- a/tools/perf/tests/shell/test_arm_coresight.sh
+++ b/tools/perf/tests/shell/test_arm_coresight.sh
@@ -156,7 +156,7 @@ arm_cs_etm_system_wide_test() {
 
 arm_cs_etm_snapshot_test() {
 	echo "Recording trace with snapshot mode"
-	perf record -o ${perfdata} -e cs_etm// -S \
+	perf record -o ${perfdata} -e cs_etm// -S -m,128K \
 		-- dd if=/dev/zero of=/dev/null > /dev/null 2>&1 &
 	PERFPID=$!
 

-- 
2.34.1