#!/usr/bin/env python
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#
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# Copyright 2015 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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#
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# This is an utility for generating csv files based on GC traces produced by
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# V8 when run with flags --trace-gc --trace-gc-nvp.
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#
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# Usage: gc-nvp-to-csv.py <GC-trace-filename>
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#
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import sys
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import gc_nvp_common
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def process_trace(filename):
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trace = gc_nvp_common.parse_gc_trace(filename)
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if len(trace):
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keys = trace[0].keys()
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print ', '.join(keys)
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for entry in trace:
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print ', '.join(map(lambda key: str(entry[key]), keys))
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if len(sys.argv) != 2:
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print "Usage: %s <GC-trace-filename>" % sys.argv[0]
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sys.exit(1)
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process_trace(sys.argv[1])
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