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#!/usr/bin/env python
""" Parse gcdumps. Use by saying PYPYLOG=gc-collect:log pypy <program>
and run it by:
gcanalyze.py logfile [--plot]
"""
from __future__ import print_function
import sys
from rpython.tool.logparser import parse_log
NO_BUCKETS = 8
def main(arg, plot=False):
log = parse_log(open(arg).readlines())
all = []
for entry in log:
if entry[0].startswith('gc-collect'):
start = entry[1]
end = entry[2]
all.append(float(end - start) / 1000000)
format_output(all, plot=plot)
def format_output(all, plot=False):
avg = sum(all) / len(all)
max_t = max(all)
print("AVG:", "%.1fms" % avg, "MAX:", "%.1fms" % max_t, "TOTAL:" , "%.1fms" % sum(all))
print()
buckets = [0] * NO_BUCKETS
for item in all:
bucket = int(item / max_t * NO_BUCKETS)
if bucket == len(buckets):
bucket = len(buckets) - 1
buckets[bucket] += 1
l1 = ["%.1fms" % ((i + 1) * max_t / NO_BUCKETS) for i in range(NO_BUCKETS)]
l2 = [str(i) for i in buckets]
for i, elem in enumerate(l1):
l2[i] += " " * (len(elem) - len(l2[i]))
if plot:
l3 = ["+"]
for i, elem in enumerate(l1):
l3.append("-" * len(elem) + "+")
l1.insert(0, "")
l2.insert(0, "")
print("".join(l3))
print("|".join(l1) + "|")
print("".join(l3))
print("|".join(l2) + "|")
print("".join(l3))
else:
print(" ".join(l1))
print(" ".join(l2))
if __name__ == '__main__':
if len(sys.argv) < 2 or len(sys.argv) > 3:
print(__doc__)
sys.exit(1)
plot = False
if len(sys.argv) == 3:
if sys.argv[1] == '--plot':
plot = True
arg = sys.argv[2]
elif sys.argv[2] == '--plot':
plot = True
arg = sys.argv[1]
else:
print("Wrong command line options:", sys.argv)
sys.exit(1)
else:
arg = sys.argv[1]
main(arg, plot=plot)
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