linux-kernel - [PATCH 1/2 v2] perf test: Fix perf test 114 perf record test subtest precise

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Message-ID: <20250129071134.4024430-1-tmricht@linux.ibm.com>
Date: Wed, 29 Jan 2025 08:11:33 +0100
From: Thomas Richter <tmricht@...ux.ibm.com>
To: linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        acme@...nel.org, namhyung@...nel.org
Cc: agordeev@...ux.ibm.com, gor@...ux.ibm.com, sumanthk@...ux.ibm.com,
        hca@...ux.ibm.com, Thomas Richter <tmricht@...ux.ibm.com>,
        James Clark <james.clark@...aro.org>
Subject: [PATCH 1/2 v2] perf test: Fix perf test 114 perf record test subtest precise_max for s390

On s390 the event instructions can not be used for recording.
This event is only supported by perf stat.

Change the event instruction to cycles for subtest test_precise_max
as suggested by James Clark.

Signed-off-by: Thomas Richter <tmricht@...ux.ibm.com>
Suggested-by: James Clark <james.clark@...aro.org>
---
 tools/perf/tests/shell/record.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
index 0fc7a909ae9b..957ee10aff44 100755
--- a/tools/perf/tests/shell/record.sh
+++ b/tools/perf/tests/shell/record.sh
@@ -287,9 +287,9 @@ test_precise_max() {
     return
   fi
   # On AMD, cycles and instructions events are treated differently
-  if ! perf record -o "${perfdata}" -e "instructions:P" true 2> /dev/null
+  if ! perf record -o "${perfdata}" -e "cycles:P" true 2> /dev/null
   then
-    echo "precise_max attribute [Failed instructions:P event]"
+    echo "precise_max attribute [Failed cycles:P event]"
     err=1
     return
   fi
-- 
2.48.1