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# lsprofcalltree.py: lsprof output which is readable by kcachegrind
# David Allouche
# Jp Calderone & Itamar Shtull-Trauring
# Johan Dahlin
import optparse
import os
import sys
try:
import cProfile
except ImportError:
raise SystemExit("This script requires cProfile from Python 2.5")
def label(code):
if isinstance(code, str):
return ('~', 0, code) # built-in functions ('~' sorts at the end)
else:
return '%s %s:%d' % (code.co_name,
code.co_filename,
code.co_firstlineno)
class KCacheGrind(object):
def __init__(self, profiler):
self.data = profiler.getstats()
self.out_file = None
def output(self, out_file):
self.out_file = out_file
print >> out_file, 'events: Ticks'
self._print_summary()
for entry in self.data:
self._entry(entry)
def _print_summary(self):
max_cost = 0
for entry in self.data:
totaltime = int(entry.totaltime * 1000)
max_cost = max(max_cost, totaltime)
print >> self.out_file, 'summary: %d' % (max_cost,)
def _entry(self, entry):
out_file = self.out_file
code = entry.code
#print >> out_file, 'ob=%s' % (code.co_filename,)
if isinstance(code, str):
print >> out_file, 'fi=~'
else:
print >> out_file, 'fi=%s' % (code.co_filename,)
print >> out_file, 'fn=%s' % (label(code),)
inlinetime = int(entry.inlinetime * 1000)
if isinstance(code, str):
print >> out_file, '0 ', inlinetime
else:
print >> out_file, '%d %d' % (code.co_firstlineno, inlinetime)
# recursive calls are counted in entry.calls
if entry.calls:
calls = entry.calls
else:
calls = []
if isinstance(code, str):
lineno = 0
else:
lineno = code.co_firstlineno
for subentry in calls:
self._subentry(lineno, subentry)
print >> out_file
def _subentry(self, lineno, subentry):
out_file = self.out_file
code = subentry.code
#print >> out_file, 'cob=%s' % (code.co_filename,)
print >> out_file, 'cfn=%s' % (label(code),)
if isinstance(code, str):
print >> out_file, 'cfi=~'
print >> out_file, 'calls=%d 0' % (subentry.callcount,)
else:
print >> out_file, 'cfi=%s' % (code.co_filename,)
print >> out_file, 'calls=%d %d' % (
subentry.callcount, code.co_firstlineno)
totaltime = int(subentry.totaltime * 1000)
print >> out_file, '%d %d' % (lineno, totaltime)
def main(args):
usage = "%s [-o output_file_path] scriptfile [arg] ..."
parser = optparse.OptionParser(usage=usage % sys.argv[0])
parser.allow_interspersed_args = False
parser.add_option('-o', '--outfile', dest="outfile",
help="Save stats to <outfile>", default=None)
if not sys.argv[1:]:
parser.print_usage()
sys.exit(2)
options, args = parser.parse_args()
if not options.outfile:
options.outfile = '%s.log' % os.path.basename(args[0])
sys.argv[:] = args
prof = cProfile.Profile()
try:
try:
prof = prof.run('execfile(%r)' % (sys.argv[0],))
except SystemExit:
pass
finally:
kg = KCacheGrind(prof)
kg.output(file(options.outfile, 'w'))
if __name__ == '__main__':
sys.exit(main(sys.argv))
|
