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