[PATCH v2 1/2] perf tests kvm: Avoid leaving perf.data.guest file around

[PATCH v2 1/2] perf tests kvm: Avoid leaving perf.data.guest file around

[Ian Rogers]

Ensure the perf.data output when checking permissions is written to
/dev/null so that it isn't left in the directory the test is run.

Fixes: b58261584d2f ("perf test kvm: Add some basic perf kvm test coverage")
Signed-off-by: Ian Rogers <irogers@google.com>
---
 tools/perf/tests/shell/kvm.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/kvm.sh b/tools/perf/tests/shell/kvm.sh
index 2fafde1a29cc..2a399b83fe80 100755
--- a/tools/perf/tests/shell/kvm.sh
+++ b/tools/perf/tests/shell/kvm.sh
@@ -118,7 +118,7 @@ setup_qemu() {
 		skip "/dev/kvm not accessible"
 	fi
 
-	if ! perf kvm stat record -a sleep 0.01 >/dev/null 2>&1; then
+	if ! perf kvm stat record -o /dev/null -a sleep 0.01 >/dev/null 2>&1; then
 		skip "No permission to record kvm events"
 	fi
 
-- 
2.52.0.223.gf5cc29aaa4-goog

[PATCH v2 2/2] perf tests top: Make the test exclusive

[Ian Rogers]

With sufficient tests running the load causes the top test fails with:
```
123: perf top tests                                                  : FAILED!
 --- start ---
test child forked, pid 629856
Basic perf top test
Basic perf top test [Failed: no sample percentage found]
 ---- end(-1) ----
```
Mark the test exclusive to avoid flakes.

Fixes: 75e961730b9e ("perf tests top: Add basic perf top coverage test")
Signed-off-by: Ian Rogers <irogers@google.com>
---
v2; Tweak commit message  log lines starting "---".
---
 tools/perf/tests/shell/top.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/top.sh b/tools/perf/tests/shell/top.sh
index 768ebcf7a89c..ad7fccd09025 100755
--- a/tools/perf/tests/shell/top.sh
+++ b/tools/perf/tests/shell/top.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# perf top tests
+# perf top tests (exclusive)
 # SPDX-License-Identifier: GPL-2.0
 
 set -e
-- 
2.52.0.223.gf5cc29aaa4-goog

Re: [PATCH v2 1/2] perf tests kvm: Avoid leaving perf.data.guest file around

[Namhyung Kim]

On Thu, 04 Dec 2025 14:55:21 -0800, Ian Rogers wrote:
> Ensure the perf.data output when checking permissions is written to
> /dev/null so that it isn't left in the directory the test is run.
> 
> 
Applied to perf-tools, thanks!

Best regards,
Namhyung