#! /usr/bin/python
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"""Parses the actual memory usage from TCMalloc.
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This goes through logs that have the actual allocated memory (not sampled) in
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the logs. The output is of the form of:
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time (in seconds from some base time), amount of memory allocated by the
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application
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"""
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import argparse
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from cros_utils import compute_total_diff
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from datetime import datetime
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pretty_print = True
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parser = argparse.ArgumentParser()
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parser.add_argument('filename')
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args = parser.parse_args()
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my_file = open(args.filename)
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output_file = open('raw_memory_data.csv', 'a')
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base_time = datetime(2014, 6, 11, 0, 0)
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prev_line = ''
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half_entry = (None, None)
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for line in my_file:
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if 'Output Heap Stats:' in line:
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total_diff = compute_total_diff(line, base_time)
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half_entry = (total_diff, None)
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if 'Bytes in use by application' in line:
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total_diff = half_entry[0]
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memory_used = int(line.strip().split()[1])
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half_entry = (None, None)
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output_file.write('{0},{1}\n'.format(total_diff, memory_used))
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