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17a74ddd3d
PR-URL: https://github.com/nodejs/node/pull/49639 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
47 lines
1.1 KiB
Python
Executable File
47 lines
1.1 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright 2015 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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#
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# This is a utility for generating csv files based on GC traces produced by
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# V8 when run with flags --trace-gc --trace-gc-nvp.
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#
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# Usage: gc-nvp-to-csv.py [-h] [filename]
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#
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# for py2/py3 compatibility
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from __future__ import print_function
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import argparse
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import sys
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import gc_nvp_common
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def process_trace(f):
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trace, keys = gc_nvp_common.parse_gc_trace_with_keys(f)
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if trace:
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print(*keys, sep=', ')
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for entry in trace:
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print(*(entry.get(key, '') for key in keys), sep=', ')
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def main(args):
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if args.filename:
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with open(args.filename, 'rt') as f:
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process_trace(f)
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else:
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process_trace(sys.stdin)
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if __name__ == '__main__':
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# Command line options.
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parser = argparse.ArgumentParser(
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description='Helper script for converting --trace-gc-nvp logs to CSV')
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parser.add_argument('filename', type=str, nargs='?', help='GC trace log file')
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args = parser.parse_args()
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# Call the main function.
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main(args)
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