From: Weilin Wang <[email protected]>
Intel TPEBS sampling mode is supported through perf record. The counting mode
code uses perf record to capture retire_latency value and use it in metric
calculation. This test checks the counting mode code.
Signed-off-by: Weilin Wang <[email protected]>
---
.../perf/tests/shell/test_stat_intel_tpebs.sh | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
create mode 100755 tools/perf/tests/shell/test_stat_intel_tpebs.sh
diff --git a/tools/perf/tests/shell/test_stat_intel_tpebs.sh b/tools/perf/tests/shell/test_stat_intel_tpebs.sh
new file mode 100755
index 000000000000..3c8763b39bd4
--- /dev/null
+++ b/tools/perf/tests/shell/test_stat_intel_tpebs.sh
@@ -0,0 +1,18 @@
+#!/bin/bash
+# test Intel TPEBS counting mode
+# SPDX-License-Identifier: GPL-2.0
+
+set e
+
+# Use this event for testing because it should exist in all platforms
+e=cache-misses:R
+
+# Without this cmd option, default value or zero is returned
+echo "Testing without --enable-tpebs-recording"
+result=$(perf stat -e "$e" true 2>&1)
+[[ "$result" =~ "$e" ]] || exit 1
+
+# In platforms that do not support TPEBS, it should execute without error.
+echo "Testing with --enable-tpebs-recording"
+result=$(perf stat -e "$e" --enable-tpebs-recording -a sleep 0.01 2>&1)
+[[ "$result" =~ "perf record" && "$result" =~ "$e" ]] || exit 1
--
2.43.0