linux-kernel - [PATCH 4/6] perf test: Add system-wide mode in perf record tests

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Date:   Tue,  6 Sep 2022 23:46:43 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>
Cc:     Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Ian Rogers <irogers@...gle.com>,
        linux-perf-users@...r.kernel.org,
        Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH 4/6] perf test: Add system-wide mode in perf record tests

Add system wide recording test with the same pattern.  It'd skip the
test when it failes to run perf record.  For system-wide mode, it needs
to avoid build-id collection and synthesis because the test only cares
about the test program and kernel would generates necessary events as
the process starts.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/tests/shell/record.sh | 34 ++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/tools/perf/tests/shell/record.sh b/tools/perf/tests/shell/record.sh
index 3331fb092654..bd4ef60948bd 100755
--- a/tools/perf/tests/shell/record.sh
+++ b/tools/perf/tests/shell/record.sh
@@ -134,10 +134,44 @@ test_register_capture() {
   echo "Register capture test [Success]"
 }
 
+test_system_wide() {
+  echo "Basic --system-wide mode test"
+  if ! perf record -aB --synth=no ${testopt} -o ${perfdata} ${testprog} 2> /dev/null
+  then
+    echo "System-wide record [Skipped not supported]"
+    if [ $err -ne 1 ]
+    then
+      err=2
+    fi
+    return
+  fi
+  if ! perf report -i ${perfdata} -q | egrep -q ${testsym}
+  then
+    echo "System-wide record [Failed missing output]"
+    err=1
+    return
+  fi
+  if ! perf record -aB --synth=no -e cpu-clock,cs --threads=cpu ${testopt} \
+    -o ${perfdata} ${testprog} 2> /dev/null
+  then
+    echo "System-wide test [Failed recording with threads]"
+    err=1
+    return
+  fi
+  if ! perf report -i ${perfdata} -q | egrep -q ${testsym}
+  then
+    echo "System-wide record [Failed missing output]"
+    err=1
+    return
+  fi
+  echo "Basic --system-wide mode test [Success]"
+}
+
 build_test_program
 
 test_per_thread
 test_register_capture
+test_system_wide
 
 cleanup
 exit $err
-- 
2.37.2.789.g6183377224-goog