42 lines
1 KiB
Python
42 lines
1 KiB
Python
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#!/usr/bin/env python2
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#
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# Analyze allocator logs and write total-bytes-in-use after every
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# operation to stdout. The output can be gnuplotted as:
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#
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# $ python log2gnuplot.py </tmp/duk-alloc-log.txt >/tmp/output.txt
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# $ gnuplot
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# > plot "output.txt" with lines
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#
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import os
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import sys
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def main():
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allocated = 0
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for line in sys.stdin:
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line = line.strip()
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parts = line.split(' ')
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# A ptr/NULL/FAIL size
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# F ptr/NULL size
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# R ptr/NULL oldsize ptr/NULL/FAIL newsize
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# Note: duk-low doesn't log oldsize (uses -1 instead)
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if parts[0] == 'A':
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if parts[1] != 'NULL' and parts[1] != 'FAIL':
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allocated += long(parts[2])
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elif parts[0] == 'F':
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allocated -= long(parts[2])
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elif parts[0] == 'R':
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allocated -= long(parts[2])
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if parts[3] != 'NULL' and parts[3] != 'FAIL':
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allocated += long(parts[4])
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print(allocated)
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print(allocated)
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if __name__ == '__main__':
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main()
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