Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 1 | # Copyright 2015 the V8 project authors. All rights reserved. |
| 2 | # Use of this source code is governed by a BSD-style license that can be |
| 3 | # found in the LICENSE file. |
| 4 | |
| 5 | # |
| 6 | # Common code for parsing --trace-gc-nvp output. |
| 7 | # |
| 8 | |
| 9 | |
| 10 | from __future__ import with_statement |
| 11 | import re |
| 12 | |
| 13 | def split_nvp(s): |
| 14 | t = {} |
| 15 | for (name, value) in re.findall(r"([._\w]+)=([-\w]+(?:\.[0-9]+)?)", s): |
| 16 | try: |
| 17 | t[name] = float(value) |
| 18 | except ValueError: |
| 19 | t[name] = value |
| 20 | |
| 21 | return t |
| 22 | |
| 23 | |
| 24 | def parse_gc_trace(input): |
| 25 | trace = [] |
| 26 | with open(input) as f: |
| 27 | for line in f: |
| 28 | info = split_nvp(line) |
| 29 | if info and 'pause' in info and info['pause'] > 0: |
| 30 | info['i'] = len(trace) |
| 31 | trace.append(info) |
| 32 | return trace |