Perf all metrics test fails as below when perf_event access
is restricted.
./perf test -v "perf all metrics test"
Metric 'Memory_RD_BW_Chip' not printed in:
Error:
Access to performance monitoring and observability operations is limited.
Enforced MAC policy settings (SELinux) can limit access to performance
—
access to performance monitoring and observability operations for processes
without CAP_PERFMON, CAP_SYS_PTRACE or CAP_SYS_ADMIN Linux capability.
—
test child finished with -1
---- end ----
perf all metrics test: FAILED!
The perf all metrics test picks the input events from
"perf list --raw-dump metrics" and runs "perf stat -M "$m""
for each of the metrics in the list. It fails here for some
of the metrics which needs access, since it collects system
wide resource details/statistics. Fix the testcase to skip
those metric events.
Signed-off-by: Athira Rajeev <atraj...@linux.vnet.ibm.com>
---
tools/perf/tests/shell/stat_all_metrics.sh | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/tools/perf/tests/shell/stat_all_metrics.sh
b/tools/perf/tests/shell/stat_all_metrics.sh
index 54774525e18a..14b96484a359 100755
--- a/tools/perf/tests/shell/stat_all_metrics.sh
+++ b/tools/perf/tests/shell/stat_all_metrics.sh
@@ -6,7 +6,9 @@ err=0
for m in $(perf list --raw-dump metrics); do
echo "Testing $m"
result=$(perf stat -M "$m" true 2>&1)
- if [[ "$result" =~ ${m:0:50} ]] || [[ "$result" =~ "<not supported>" ]]
+ # Skip if there is no access to perf_events monitoring
+ # and observability operations
+ if [[ "$result" =~ ${m:0:50} ]] || [[ "$result" =~ "<not supported>" ]] ||
[[ "$result" =~ "Access to performance monitoring and observability operations
is limited" ]]
then
continue
fi
--
2.31.1
