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Sat, 31 Jan 2026 12:02:29 -0800 (PST) Date: Sat, 31 Jan 2026 12:02:19 -0800 In-Reply-To: <20260131200224.1296136-1-irogers@google.com> Mime-Version: 1.0 References: <20260131200224.1296136-1-irogers@google.com> X-Mailer: git-send-email 2.53.0.rc1.225.gd81095ad13-goog Message-ID: <20260131200224.1296136-2-irogers@google.com> Subject: [PATCH v2 1/6] perf test kvm: Add stat live testing From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , John Garry , Will Deacon , Mike Leach , Leo Yan , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Shimin Guo , Yunseong Kim , Athira Rajeev , Quan Zhou , Andrew Jones , Anup Patel , Dapeng Mi , Thomas Falcon , Blake Jones , Swapnil Sapkal , Kan Liang , Howard Chu , Anubhav Shelat , Aditya Bodkhe , Chun-Tse Shao , Andi Kleen , Dmitry Vyukov , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260131_120230_536731_E2439984 X-CRM114-Status: GOOD ( 11.23 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Ensure the `perf kvm stat live -p ..` has some basic functionality. Signed-off-by: Ian Rogers --- tools/perf/tests/shell/kvm.sh | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) diff --git a/tools/perf/tests/shell/kvm.sh b/tools/perf/tests/shell/kvm.sh index 2a399b83fe80..f88e859025c4 100755 --- a/tools/perf/tests/shell/kvm.sh +++ b/tools/perf/tests/shell/kvm.sh @@ -7,9 +7,10 @@ set -e err=0 perfdata=$(mktemp /tmp/__perf_kvm_test.perf.data.XXXXX) qemu_pid_file=$(mktemp /tmp/__perf_kvm_test.qemu.pid.XXXXX) +log_file=$(mktemp /tmp/__perf_kvm_test.live_log.XXXXX) cleanup() { - rm -f "${perfdata}" + rm -f "${perfdata}" "${log_file}" if [ -f "${qemu_pid_file}" ]; then if [ -s "${qemu_pid_file}" ]; then qemu_pid=$(cat "${qemu_pid_file}") @@ -96,6 +97,32 @@ test_kvm_buildid_list() { echo "perf kvm buildid-list test [Success]" } +test_kvm_stat_live() { + echo "Testing perf kvm stat live" + + # Run perf kvm live for 5 seconds, monitoring that PID + # Use sleep to keep stdin open but silent, preventing EOF loop or interactive spam + if ! sleep 10 | timeout 5s perf kvm stat live -p "${qemu_pid}" > "${log_file}" 2>&1; then + retval=$? + if [ $retval -ne 124 ] && [ $retval -ne 0 ]; then + echo "perf kvm stat live [Failed: perf kvm stat live failed to start or run (ret=$retval)]" + head -n 50 "${log_file}" + err=1 + return + fi + fi + + # Check for some sample data (percentage) + if ! grep -E -q "[0-9]+\.[0-9]+%" "${log_file}"; then + echo "perf kvm stat live [Failed: no sample percentage found]" + head -n 50 "${log_file}" + err=1 + return + fi + + echo "perf kvm stat live test [Success]" +} + setup_qemu() { # Find qemu if [ "$(uname -m)" = "x86_64" ]; then @@ -148,6 +175,7 @@ if [ $err -eq 0 ]; then test_kvm_stat test_kvm_record_report test_kvm_buildid_list + test_kvm_stat_live fi cleanup -- 2.53.0.rc1.225.gd81095ad13-goog _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv