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PR-URL: https://github.com/nodejs/node/pull/44741 Fixes: https://github.com/nodejs/node/issues/44650 Fixes: https://github.com/nodejs/node/issues/37472 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
45 lines
1.5 KiB
Bash
Executable File
45 lines
1.5 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2022 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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PERF_DATA_DIR="."
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PERF_DATA_PREFIX="chrome_renderer"
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RENDERER_ID="0"
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for i in "$@"; do
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case $i in
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-h|--help)
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echo "Usage: path/to/chrome --renderer-cmd-prefix='$0 [OPTION]' [CHROME OPTIONS]"
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echo "This script is mostly used in conjuction with linux_perf.py to run linux-perf"
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echo "for each renderer process."
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echo "It generates perf.data files that can be read by pprof or linux-perf."
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echo ""
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echo 'File naming: ${OUT_DIR}/${PREFIX}_${PARENT_PID}_${RENDERER_ID}.perf.data'
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echo ""
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echo "Options:"
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echo " --perf-data-dir=OUT_DIR Change the location where perf.data is written."
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echo " Default: '$PERF_DATA_DIR'"
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echo " --perf-data-prefix=PREFIX Set a custom prefex for all generated perf.data files."
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echo " Default: '$PERF_DATA_PREFIX'"
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exit
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;;
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--perf-data-dir=*)
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PERF_DATA_DIR="${i#*=}"
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shift
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;;
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--perf-data-prefix=*)
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PERF_DATA_PREFIX="${i#*=}"
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shift
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;;
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--renderer-client-id=*)
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# Don't shift this option since it is passed in (and used by) chrome.
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RENDERER_ID="${i#*=}"
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;;
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*)
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;;
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esac
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done
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PERF_OUTPUT="$PERF_DATA_DIR/${PERF_DATA_PREFIX}_${PPID}_${RENDERER_ID}.perf.data"
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perf record --call-graph=fp --clockid=mono --freq=max --output="${PERF_OUTPUT}" -- $@
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