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Compute block_counts iteratively with explicit stack #13

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Compute block_counts iteratively with explicit stack #13

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baf2011
Compute block_counts iteratively with explicit stack
maffoo Mar 23, 2023
3dfa9aa
Remove extra `visited` set
maffoo Sep 23, 2024
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7 changes: 4 additions & 3 deletions flameprof.py
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Original file line number Diff line number Diff line change
Expand Up @@ -141,13 +141,15 @@ def prepare(funcs, calls, threshold=0.0001):
bblocks = []
block_counts = Counter()

def _counts(parent, visited, level=0):
todo = [('root', set(), 0)]
while todo:
parent, visited, level = todo.pop(-1)
for child in funcs[parent]['calls']:
k = parent, child
block_counts[k] += 1
if block_counts[k] < 2:
if k not in visited:
_counts(child, visited | {k}, level+1)
todo.append((child, visited | {k}, level+1))

def _calc(parent, timings, level, origin, visited, trace=(), pccnt=1, pblock=None):
childs = funcs[parent]['calls']
Expand Down Expand Up @@ -227,7 +229,6 @@ def _calc_back(names, level, to, origin, visited, pw):
origin += ttt

maxw = funcs['root']['stat'][3] * 1.0
_counts('root', set())
_calc('root', (1, 1, maxw, maxw), 0, 0, set())
_calc_back((f for f in funcs if f != 'root'), 0, None, 0, set(), 0)

Expand Down