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# Copyright 2015 the V8 project authors. All rights reserved. # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. # # Common code for parsing --trace-gc-nvp output. # from __future__ import with_statement import re def split_nvp(s): t = {} for (name, value) in re.findall(r"([._\w]+)=([-\w]+(?:\.[0-9]+)?)", s): try: t[name] = float(value) except ValueError: t[name] = value return t def parse_gc_trace(input): trace = [] with open(input) as f: for line in f: info = split_nvp(line) if info and 'pause' in info and info['pause'] > 0: info['i'] = len(trace) trace.append(info) return trace