From: Namhyung Kim <namhyung@kernel.org>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
Ian Rogers <irogers@google.com>,
James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>,
Adrian Hunter <adrian.hunter@intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
linux-perf-users@vger.kernel.org
Subject: [PATCH 4/4] perf test: Simplify perf kvm record/report tests
Date: Tue, 23 Jun 2026 00:03:13 -0700 [thread overview]
Message-ID: <20260623070313.55225-5-namhyung@kernel.org> (raw)
In-Reply-To: <20260623070313.55225-1-namhyung@kernel.org>
It can now pass command line arguments to perf kvm record --host.
Let's pass 'sleep 1' directly rather than running it in background.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/tests/shell/kvm.sh | 8 +-------
1 file changed, 1 insertion(+), 7 deletions(-)
diff --git a/tools/perf/tests/shell/kvm.sh b/tools/perf/tests/shell/kvm.sh
index f88e859025c42c32..4ca10388748dee93 100755
--- a/tools/perf/tests/shell/kvm.sh
+++ b/tools/perf/tests/shell/kvm.sh
@@ -63,13 +63,7 @@ test_kvm_record_report() {
echo "Recording kvm profile for pid ${qemu_pid}..."
# Use --host to avoid needing guest symbols/mounts for this simple test
# We just want to verify the command runs and produces data
- # We run in background and kill it because 'perf kvm record' appends options
- # after the command, which breaks 'sleep' (e.g. it gets '-e cycles').
- perf kvm --host record -p "${qemu_pid}" -o "${perfdata}" &
- rec_pid=$!
- sleep 1
- kill -INT "${rec_pid}"
- wait "${rec_pid}" || true
+ perf kvm --host record -p "${qemu_pid}" -o "${perfdata}" sleep 1
echo "Reporting kvm profile..."
# Check for some standard output from report
--
2.54.0
next prev parent reply other threads:[~2026-06-23 7:03 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-23 7:03 [PATCH v1 0/4] perf kvm: A small update in default arch event Namhyung Kim
2026-06-23 7:03 ` [PATCH 1/4] perf kvm: Factor out kvm_need_default_arch_event() Namhyung Kim
2026-06-23 7:16 ` sashiko-bot
2026-06-23 7:03 ` [PATCH 2/4] perf kvm: Check kvm_need_default_arch_event() early Namhyung Kim
2026-06-23 7:16 ` sashiko-bot
2026-06-23 7:03 ` [PATCH 3/4] perf kvm: Kill STRDUP_FAIL_EXIT() Namhyung Kim
2026-06-23 7:12 ` sashiko-bot
2026-06-23 7:03 ` Namhyung Kim [this message]
2026-06-23 7:09 ` [PATCH 4/4] perf test: Simplify perf kvm record/report tests sashiko-bot
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