django1/django/bin/profiling/gather_profile_stats.py

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#!/usr/bin/env python
"""
gather_profile_stats.py /path/to/dir/of/profiles
Note that the aggregated profiles must be read with pstats.Stats, not
hotshot.stats (the formats are incompatible)
"""
from hotshot import stats
import os
import pstats
import sys
def gather_stats(p):
profiles = {}
for f in os.listdir(p):
if f.endswith('.agg.prof'):
path = f[:-9]
prof = pstats.Stats(os.path.join(p, f))
elif f.endswith('.prof'):
bits = f.split('.')
path = ".".join(bits[:-3])
prof = stats.load(os.path.join(p, f))
else:
continue
print "Processing %s" % f
if path in profiles:
profiles[path].add(prof)
else:
profiles[path] = prof
os.unlink(os.path.join(p, f))
for (path, prof) in profiles.items():
prof.dump_stats(os.path.join(p, "%s.agg.prof" % path))
if __name__ == '__main__':
gather_stats(sys.argv[1])