#!/usr/bin/env python # # 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. # # This is an utility for generating csv files based on GC traces produced by # V8 when run with flags --trace-gc --trace-gc-nvp. # # Usage: gc-nvp-to-csv.py <GC-trace-filename> # # for py2/py3 compatibility from __future__ import print_function import sys import gc_nvp_common def process_trace(filename): trace = gc_nvp_common.parse_gc_trace(filename) if len(trace): keys = trace[0].keys() print(', '.join(keys)) for entry in trace: print(', '.join(map(lambda key: str(entry[key]), keys))) if len(sys.argv) != 2: print("Usage: %s <GC-trace-filename>" % sys.argv[0]) sys.exit(1) process_trace(sys.argv[1])