]> git.ipfire.org Git - thirdparty/linux.git/commitdiff
perf test: Fix test perf evlist for z/VM s390x
authorThomas Richter <tmricht@linux.ibm.com>
Mon, 26 Jan 2026 10:18:23 +0000 (11:18 +0100)
committerArnaldo Carvalho de Melo <acme@redhat.com>
Mon, 26 Jan 2026 21:21:20 +0000 (18:21 -0300)
Perf test case 'perf evlist tests' fails on z/VM machines on s390.

The failure is causes by event cycles. This event is not available
on virtualized machines like z/VM on s390.

Change to software event cpu-clock to fix this.

    Output before:
      # ./perf test 78
      79: perf evlist tests              : FAILED!
      #

    Output after:
      # ./perf test 78
      79: perf evlist tests              : Ok
      #

Fixes: b04d2b9199129f4f ("perf test: Fix test case perf evlist tests for s390x")
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Jan Polensky <japo@linux.ibm.com>
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
Tested-by: Jan Polensky <japo@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
tools/perf/tests/shell/evlist.sh

index 5632be391710919ed7cf32ed9713bc6c4c2d5f49..8a22f4171c07c280ac2aa852d53f1dfbc2c4459e 100755 (executable)
@@ -21,13 +21,13 @@ trap trap_cleanup EXIT TERM INT
 
 test_evlist_simple() {
        echo "Simple evlist test"
-       if ! perf record -e cycles -o "${perfdata}" true 2> /dev/null
+       if ! perf record -e cpu-clock -o "${perfdata}" true 2> /dev/null
        then
                echo "Simple evlist [Failed record]"
                err=1
                return
        fi
-       if ! perf evlist -i "${perfdata}" | grep -q "cycles"
+       if ! perf evlist -i "${perfdata}" | grep -q "cpu-clock"
        then
                echo "Simple evlist [Failed to list event]"
                err=1