918fe04351
PR-URL: https://github.com/nodejs/node/pull/58070 Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com> Reviewed-By: Darshan Sen <raisinten@gmail.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com>
104 lines
2.9 KiB
Bash
Executable File
104 lines
2.9 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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PERF_CLOCKID="mono"
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PERF_CALL_GRAPH="fp"
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PERF_FREQ_DEFAULT=10000
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PERF_FREQ=""
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PERF_COUNT=""
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PERF_RAW_ARGS=""
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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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cat <<EOF
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Usage: path/to/chrome --renderer-cmd-prefix='$0 [OPTION]' [CHROME OPTIONS]
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This script is mostly used in conjuction with linux_perf.py to run linux-perf
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for each renderer process.
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It generates perf.data files that can be read by pprof or linux-perf.
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File naming: \$OUT_DIR/\$PREFIX_\$PARENT_PID_\$RENDERER_ID.perf.data
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Options:
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--perf-data-dir=OUT_DIR Change the location where perf.data is written.
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Default: '${PERF_DATA_DIR}'
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--perf-data-prefix=PREFIX Set a custom prefix for all generated
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perf.data files.
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Default: '${PERF_DATA_PREFIX}'
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Pass-though Options:
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--perf-count=SAMPLE_DELTA Forwards options to 'perf record --count'
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Default: not used
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--perf-freq=FREQUENCY Forwards options to 'perf record --freq'
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Default: ${PERF_FREQ_DEFAULT}
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--perf-clockid=CLOCK_TYPE Forwards options to 'perf record --clockid'
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Default: '${PERF_CLOCKID}'
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--perf-call-graph=MODE Forwards options to 'perf record --call-graph'
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Default: '${PERF_CALL_GRAPH}'
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--perf-args=ARGS Forwards raw options to 'perf record \$ARGS'
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Default: not used
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EOF
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exit
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;;
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--perf-data-dir=*)
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PERF_DATA_DIR="${i#*=}"
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shift
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;;
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--perf-data-prefix=*)
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PERF_DATA_PREFIX="${i#*=}"
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shift
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;;
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--perf-freq=*)
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PERF_FREQ="${i#*=}"
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shift
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;;
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--perf-count=*)
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PERF_COUNT="${i#*=}"
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shift
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;;
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--perf-call-graph*)
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PERF_CALL_GRAPH="${i#*=}"
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shift
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;;
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--perf-clockid*)
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PERF_CLOCKID="${i#*=}"
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shift
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;;
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--perf-args*)
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PERF_RAW_ARGS="${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="${i#*=}"
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;;
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*)
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;;
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esac
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done
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SAMPLE_TRIGGER=""
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if [ -n "${PERF_COUNT}" ]; then
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SAMPLE_TRIGGER+="--count=${PERF_COUNT}"
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elif [ -n "${PERF_FREQ}" ]; then
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SAMPLE_TRIGGER+=" --freq=${PERF_FREQ}"
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else
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SAMPLE_TRIGGER="--freq=${PERF_FREQ_DEFAULT}"
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fi
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# Make sure `perf record` doesn't create `.debug/` in the home directory.
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export JITDUMPDIR="${PERF_DATA_DIR}";
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PERF_OUTPUT="${PERF_DATA_DIR}/${PERF_DATA_PREFIX}_${PPID}_${RENDERER_ID}.perf.data";
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perf record \
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--call-graph=${PERF_CALL_GRAPH} \
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--clockid=${PERF_CLOCKID} \
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${SAMPLE_TRIGGER} \
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${PERF_RAW_ARGS} \
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--output="${PERF_OUTPUT}" \
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-- $@
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