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bitbake: runqueue: Fix scenetask processing performance issue

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Analysis shows that "bitbake core-image-ptest-all" spends a lot of
time in scenequeue_updatecounters and much of it is rebuilding a set
which doens't change. Reorder the code to avoid that performance
glitch.

(Bitbake rev: 923c19b9713e398d8e66e6d4422dfd4c18a03486)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2024-11-29 18:51:36 +00:00
parent abc603870a
commit a72cd0d6d0
1 changed files with 5 additions and 1 deletions
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6
bitbake/lib/bb/runqueue.py
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@@ -2771,8 +2771,12 @@ class RunQueueExecute:
logger.debug2("%s was unavailable and is a hard dependency of %s so skipping" % (task, dep))
self.sq_task_failoutright(dep)
continue
# For performance, only compute allcovered once if needed
if self.sqdata.sq_deps[task]:
allcovered = self.scenequeue_covered | self.scenequeue_notcovered
for dep in sorted(self.sqdata.sq_deps[task]):
if self.sqdata.sq_revdeps[dep].issubset(self.scenequeue_covered | self.scenequeue_notcovered):
if self.sqdata.sq_revdeps[dep].issubset(allcovered):
if dep not in self.sq_buildable:
self.sq_buildable.add(dep)