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Date: Fri, 7 Apr 2023 22:44:56 -0700
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>,
Thomas Richter <tmricht@...ux.ibm.com>,
Sumanth Korikkar <sumanthk@...ux.ibm.com>,
Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 3/3] perf test: Write Json output to a file
Write the Json output to a file, then sanity check this output. This
avoids problems with debug/warning/error output corrupting the file
format.
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
.../tests/shell/lib/perf_json_output_lint.py | 3 +-
tools/perf/tests/shell/stat+json_output.sh | 48 ++++++++++++++-----
2 files changed, 38 insertions(+), 13 deletions(-)
diff --git a/tools/perf/tests/shell/lib/perf_json_output_lint.py b/tools/perf/tests/shell/lib/perf_json_output_lint.py
index 97598d14e532..61f3059ca54b 100644
--- a/tools/perf/tests/shell/lib/perf_json_output_lint.py
+++ b/tools/perf/tests/shell/lib/perf_json_output_lint.py
@@ -17,9 +17,10 @@ ap.add_argument('--per-thread', action='store_true')
ap.add_argument('--per-die', action='store_true')
ap.add_argument('--per-node', action='store_true')
ap.add_argument('--per-socket', action='store_true')
+ap.add_argument('--file', type=argparse.FileType('r'), default=sys.stdin)
args = ap.parse_args()
-Lines = sys.stdin.readlines()
+Lines = args.file.readlines()
def isfloat(num):
try:
diff --git a/tools/perf/tests/shell/stat+json_output.sh b/tools/perf/tests/shell/stat+json_output.sh
index 2c4212c641ed..f3e4967cc72e 100755
--- a/tools/perf/tests/shell/stat+json_output.sh
+++ b/tools/perf/tests/shell/stat+json_output.sh
@@ -23,6 +23,20 @@ then
fi
fi
+stat_output=$(mktemp /tmp/__perf_test.stat_output.json.XXXXX)
+
+cleanup() {
+ rm -f "${stat_output}"
+
+ trap - EXIT TERM INT
+}
+
+trap_cleanup() {
+ cleanup
+ exit 1
+}
+trap trap_cleanup EXIT TERM INT
+
# Return true if perf_event_paranoid is > $1 and not running as root.
function ParanoidAndNotRoot()
{
@@ -32,7 +46,8 @@ function ParanoidAndNotRoot()
check_no_args()
{
echo -n "Checking json output: no args "
- perf stat -j true 2>&1 | $PYTHON $pythonchecker --no-args
+ perf stat -j -o "${stat_output}" true
+ $PYTHON $pythonchecker --no-args --file "${stat_output}"
echo "[Success]"
}
@@ -44,27 +59,29 @@ check_system_wide()
echo "[Skip] paranoia and not root"
return
fi
- perf stat -j -a true 2>&1 | $PYTHON $pythonchecker --system-wide
+ perf stat -j -a -o "${stat_output}" true
+ $PYTHON $pythonchecker --system-wide --file "${stat_output}"
echo "[Success]"
}
check_system_wide_no_aggr()
{
- echo -n "Checking json output: system wide "
+ echo -n "Checking json output: system wide no aggregation "
if ParanoidAndNotRoot 0
then
echo "[Skip] paranoia and not root"
return
fi
- echo -n "Checking json output: system wide no aggregation "
- perf stat -j -A -a --no-merge true 2>&1 | $PYTHON $pythonchecker --system-wide-no-aggr
+ perf stat -j -A -a --no-merge -o "${stat_output}" true
+ $PYTHON $pythonchecker --system-wide-no-aggr --file "${stat_output}"
echo "[Success]"
}
check_interval()
{
echo -n "Checking json output: interval "
- perf stat -j -I 1000 true 2>&1 | $PYTHON $pythonchecker --interval
+ perf stat -j -I 1000 -o "${stat_output}" true
+ $PYTHON $pythonchecker --interval --file "${stat_output}"
echo "[Success]"
}
@@ -72,7 +89,8 @@ check_interval()
check_event()
{
echo -n "Checking json output: event "
- perf stat -j -e cpu-clock true 2>&1 | $PYTHON $pythonchecker --event
+ perf stat -j -e cpu-clock -o "${stat_output}" true
+ $PYTHON $pythonchecker --event --file "${stat_output}"
echo "[Success]"
}
@@ -84,7 +102,8 @@ check_per_core()
echo "[Skip] paranoia and not root"
return
fi
- perf stat -j --per-core -a true 2>&1 | $PYTHON $pythonchecker --per-core
+ perf stat -j --per-core -a -o "${stat_output}" true
+ $PYTHON $pythonchecker --per-core --file "${stat_output}"
echo "[Success]"
}
@@ -96,7 +115,8 @@ check_per_thread()
echo "[Skip] paranoia and not root"
return
fi
- perf stat -j --per-thread -a true 2>&1 | $PYTHON $pythonchecker --per-thread
+ perf stat -j --per-thread -a -o "${stat_output}" true
+ $PYTHON $pythonchecker --per-thread --file "${stat_output}"
echo "[Success]"
}
@@ -108,7 +128,8 @@ check_per_die()
echo "[Skip] paranoia and not root"
return
fi
- perf stat -j --per-die -a true 2>&1 | $PYTHON $pythonchecker --per-die
+ perf stat -j --per-die -a -o "${stat_output}" true
+ $PYTHON $pythonchecker --per-die --file "${stat_output}"
echo "[Success]"
}
@@ -120,7 +141,8 @@ check_per_node()
echo "[Skip] paranoia and not root"
return
fi
- perf stat -j --per-node -a true 2>&1 | $PYTHON $pythonchecker --per-node
+ perf stat -j --per-node -a -o "${stat_output}" true
+ $PYTHON $pythonchecker --per-node --file "${stat_output}"
echo "[Success]"
}
@@ -132,7 +154,8 @@ check_per_socket()
echo "[Skip] paranoia and not root"
return
fi
- perf stat -j --per-socket -a true 2>&1 | $PYTHON $pythonchecker --per-socket
+ perf stat -j --per-socket -a -o "${stat_output}" true
+ $PYTHON $pythonchecker --per-socket --file "${stat_output}"
echo "[Success]"
}
@@ -179,4 +202,5 @@ then
else
echo "[Skip] Skipping tests for system_wide_no_aggr, per_core, per_die and per_socket since socket id exposed via topology is invalid"
fi
+cleanup
exit 0
--
2.40.0.577.gac1e443424-goog
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