v8/tools/gc-nvp-to-csv.py
rmcilroy c136032c44 [tools] Add gc-nvp-to-csv.py script.
Adds a script for converting gc nvp output into csv files. Factors out common
code in gc-nvp-trace-processor.py to gc_nvp_common.py to be shared by both
scripts. Fixes a couple of issues in nvp parsing code.

Review URL: https://codereview.chromium.org/1175113008

Cr-Commit-Position: refs/heads/master@{#29141}
2015-06-19 10:40:47 +00:00

31 lines
759 B
Python
Executable File

#!/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>
#
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])