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bitbake: siggen: Fix performance issue in get_unihash

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There is a significant performance issue in get_unihash(). The issue turns out
to be the lookups of setscene tasks. We can fix this by using a set() instead of
the current list.

(Bitbake rev: 1e561672d039ebfb8cd0e0654a44dcf48513317c)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Richard Purdie
2019-12-12 18:57:13 +00:00
parent 1abffc542a
commit 766dfbdfb8
1 changed files with 3 additions and 3 deletions
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6
bitbake/lib/bb/siggen.py
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@@ -44,7 +44,7 @@ class SignatureGenerator(object):
self.file_checksum_values = {}
self.taints = {}
self.unitaskhashes = {}
self.setscenetasks = {}
self.setscenetasks = set()
def finalise(self, fn, d, varient):
return
@@ -110,7 +110,7 @@ class SignatureGeneratorBasic(SignatureGenerator):
self.taints = {}
self.gendeps = {}
self.lookupcache = {}
self.setscenetasks = {}
self.setscenetasks = set()
self.basewhitelist = set((data.getVar("BB_HASHBASE_WHITELIST") or "").split())
self.taskwhitelist = None
self.init_rundepcheck(data)
@@ -157,7 +157,7 @@ class SignatureGeneratorBasic(SignatureGenerator):
return taskdeps
def set_setscene_tasks(self, setscene_tasks):
self.setscenetasks = setscene_tasks
self.setscenetasks = set(setscene_tasks)
def finalise(self, fn, d, variant):