Perf test case 78: perf evlist tests fails on s390. The failure
is causes by grouping events cycles and instructions because
sampling does only support event cycles.
Change the group to software events to fix this.

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

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

Fixes: db452961de939 ("perf tests evlist: Add basic evlist test")
Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>
---
 tools/perf/tests/shell/evlist.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/shell/evlist.sh b/tools/perf/tests/shell/evlist.sh
index 140f099e75c1..5632be391710 100755
--- a/tools/perf/tests/shell/evlist.sh
+++ b/tools/perf/tests/shell/evlist.sh
@@ -38,13 +38,14 @@ test_evlist_simple() {
 
 test_evlist_group() {
 	echo "Group evlist test"
-	if ! perf record -e "{cycles,instructions}" -o "${perfdata}" true 2> /dev/null
+	if ! perf record -e "{cpu-clock,task-clock}" -o "${perfdata}" \
+		-- perf test -w noploop 2> /dev/null
 	then
 		echo "Group evlist [Skipped event group recording failed]"
 		return
 	fi
 
-	if ! perf evlist -i "${perfdata}" -g | grep -q "{.*cycles.*,.*instructions.*}"
+	if ! perf evlist -i "${perfdata}" -g | grep -q "{.*cpu-clock.*,.*task-clock.*}"
 	then
 		echo "Group evlist [Failed to list event group]"
 		err=1
-- 
2.52.0

On Tue, Dec 9, 2025 at 11:18 PM Thomas Richter <tmricht@linux.ibm.com> wrote:
>
> Perf test case 78: perf evlist tests fails on s390. The failure
> is causes by grouping events cycles and instructions because
> sampling does only support event cycles.
> Change the group to software events to fix this.
>
> Output before:
>   # ./perf test 78
>   78: perf evlist tests              : FAILED!
>   #
>
> Output after:
>   # ./perf test 78
>   78: perf evlist tests              : Ok
>   #
>
> Fixes: db452961de939 ("perf tests evlist: Add basic evlist test")
> Signed-off-by: Thomas Richter <tmricht@linux.ibm.com>

Tested-by: Ian Rogers <irogers@google.com>

Thanks!

Ian

> ---
>  tools/perf/tests/shell/evlist.sh | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/tools/perf/tests/shell/evlist.sh b/tools/perf/tests/shell/evlist.sh
> index 140f099e75c1..5632be391710 100755
> --- a/tools/perf/tests/shell/evlist.sh
> +++ b/tools/perf/tests/shell/evlist.sh
> @@ -38,13 +38,14 @@ test_evlist_simple() {
>
>  test_evlist_group() {
>         echo "Group evlist test"
> -       if ! perf record -e "{cycles,instructions}" -o "${perfdata}" true 2> /dev/null
> +       if ! perf record -e "{cpu-clock,task-clock}" -o "${perfdata}" \
> +               -- perf test -w noploop 2> /dev/null
>         then
>                 echo "Group evlist [Skipped event group recording failed]"
>                 return
>         fi
>
> -       if ! perf evlist -i "${perfdata}" -g | grep -q "{.*cycles.*,.*instructions.*}"
> +       if ! perf evlist -i "${perfdata}" -g | grep -q "{.*cpu-clock.*,.*task-clock.*}"
>         then
>                 echo "Group evlist [Failed to list event group]"
>                 err=1
> --
> 2.52.0
>