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| 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]+)", 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 |
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