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Fix callgrind output compression #17

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Fix callgrind output compression #17

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39 changes: 29 additions & 10 deletions yappi.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@

Sumer Cip 2014
"""
import itertools
import os
import sys
import _yappi
Expand All @@ -14,6 +15,7 @@
except ImportError:
from threading import get_ident # Python 3

from collections import defaultdict
from contextlib import contextmanager

class YappiError(Exception): pass
Expand Down Expand Up @@ -648,26 +650,43 @@ def _save_as_CALLGRIND(self, path):

lines = [header]

# add function definitions
file_ids = ['']
func_ids = ['']
# Each function has a distinct number even if its name already has a
# number because kcachegrind merges functions with the same number.
numbers_seq = itertools.count()
func_defs = lambda: defaultdict(lambda: defaultdict(lambda: next(numbers_seq)))
modules_seq = enumerate(iter(func_defs, None))
modules = defaultdict(lambda: next(modules_seq))
# modules = {'file.py': [module_index, {'func': {line: func_index}}]}
fl = lambda x: modules[x.module][0]
fn = lambda x: modules[x.module][1][x.name][x.lineno]

# enumerate modules and functions
for func_stat in self:
file_ids += [ 'fl=(%d) %s' % (func_stat.index, func_stat.module) ]
func_ids += [ 'fn=(%d) %s %s:%s' % (func_stat.index, func_stat.name, func_stat.module, func_stat.lineno) ]
fn(func_stat)
for child in func_stat.children:
fn(child)

lines += file_ids + func_ids
# add function definitions
for module in sorted(modules):
lines += ['', 'fl=(%d) %s' % (modules[module][0], module)]
for func, defs in sorted(modules[module][1].items()):
suffix = ''
for line in sorted(defs):
if len(defs) > 1: # disambiguate redefined functions
suffix = ' +%d' % line
lines += ['fn=(%d) %s%s' % (defs[line], func, suffix)]

# add stats for each function we have a record of
for func_stat in self:
func_stats = [ '',
'fl=(%d)' % func_stat.index,
'fn=(%d)' % func_stat.index]
'fl=(%d)' % fl(func_stat),
'fn=(%d)' % fn(func_stat)]
func_stats += [ '%s %s' % (func_stat.lineno, int(func_stat.tsub * 1e6)) ]

# children functions stats
for child in func_stat.children:
func_stats += [ 'cfl=(%d)' % child.index,
'cfn=(%d)' % child.index,
func_stats += [ 'cfl=(%d)' % fl(child),
'cfn=(%d)' % fn(child),
'calls=%d 0' % child.ncall,
'0 %d' % int(child.ttot * 1e6)
]
Expand Down