[PATCH V9 13/13] perf intel-pt: Add a test for pause / resume

Adrian Hunter
2024-07-15T16:08:38Z

Add a simple sub-test to the "Miscellaneous Intel PT testing" test to
check pause / resume.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
---
tools/perf/tests/shell/test_intel_pt.sh | 28 +++++++++++++++++++++++++
1 file changed, 28 insertions(+)

diff --git a/tools/perf/tests/shell/test_intel_pt.sh b/tools/perf/tests/shell/test_intel_pt.sh
index 723ec501f99a..e359db0d0ff2 100755
--- a/tools/perf/tests/shell/test_intel_pt.sh
+++ b/tools/perf/tests/shell/test_intel_pt.sh
@@ -644,6 +644,33 @@ test_pipe()
return 0
}

+test_pause_resume()
+{
+ echo "--- Test with pause / resume ---"
+ if ! perf_record_no_decode -o "${perfdatafile}" -e intel_pt/aux-action=start-paused/u uname ; then
+ echo "SKIP: pause / resume is not supported"
+ return 2
+ fi
+ if ! perf_record_no_bpf -o "${perfdatafile}" \
+ -e intel_pt/aux-action=start-paused/u \
+ -e instructions/period=50000,aux-action=resume,name=Resume/u \
+ -e instructions/period=100000,aux-action=pause,name=Pause/u uname ; then
+ echo "perf record with pause / resume failed"
+ return 1
+ fi
+ if ! perf script -i "${perfdatafile}" --itrace=b -Fperiod,event | \
+ awk 'BEGIN {paused=1;branches=0}
+ /Resume/ {paused=0}
+ /branches/ {if (paused) exit 1;branches=1}
+ /Pause/ {paused=1}
+ END {if (!branches) exit 1}' ; then
+ echo "perf record with pause / resume failed"
+ return 1
+ fi
+ echo OK
+ return 0
+}
+
count_result()
{
if [ "$1" -eq 2 ] ; then
@@ -672,6 +699,7 @@ test_power_event || ret=$? ; count_result $ret ; ret=0
test_no_tnt || ret=$? ; count_result $ret ; ret=0
test_event_trace || ret=$? ; count_result $ret ; ret=0
test_pipe || ret=$? ; count_result $ret ; ret=0
+test_pause_resume || ret=$? ; count_result $ret ; ret=0

cleanup

--
2.34.1