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perf tests timechart: Add a perf timechart test
Basic coverage for `perf timechart` doing a record and then a basic
sanity test of the generated SVG file.
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
authored by
Ian Rogers
and committed by
Namhyung Kim
279385cf
75e96173
+67
+67
tools/perf/tests/shell/timechart.sh
+67
tools/perf/tests/shell/timechart.sh
···
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#!/bin/bash
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# perf timechart tests
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# SPDX-License-Identifier: GPL-2.0
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set -e
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err=0
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perfdata=$(mktemp /tmp/__perf_timechart_test.perf.data.XXXXX)
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output=$(mktemp /tmp/__perf_timechart_test.output.XXXXX.svg)
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cleanup() {
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rm -f "${perfdata}"
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rm -f "${output}"
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trap - EXIT TERM INT
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}
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trap_cleanup() {
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echo "Unexpected signal in ${FUNCNAME[1]}"
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cleanup
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exit 1
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}
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trap trap_cleanup EXIT TERM INT
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test_timechart() {
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echo "Basic perf timechart test"
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# Try to record timechart data.
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# perf timechart record uses system-wide recording and specific tracepoints.
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# If it fails (e.g. permissions, missing tracepoints), skip the test.
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if ! perf timechart record -o "${perfdata}" true > /dev/null 2>&1; then
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echo "Basic perf timechart test [Skipped: perf timechart record failed (permissions/events?)]"
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return
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fi
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# Generate the timechart
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if ! perf timechart -i "${perfdata}" -o "${output}" > /dev/null 2>&1; then
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echo "Basic perf timechart test [Failed: perf timechart command failed]"
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err=1
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return
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fi
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# Check if output file exists and is not empty
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if [ ! -s "${output}" ]; then
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echo "Basic perf timechart test [Failed: output file is empty or missing]"
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err=1
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return
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fi
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# Check if it looks like an SVG
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if ! grep -q "svg" "${output}"; then
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echo "Basic perf timechart test [Failed: output doesn't look like SVG]"
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err=1
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return
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fi
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echo "Basic perf timechart test [Success]"
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}
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if ! perf check feature -q libtraceevent ; then
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echo "perf timechart is not supported. Skip."
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cleanup
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exit 2
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fi
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test_timechart
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cleanup
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exit $err