Mercurial > hg
view tests/notcapable @ 18091:f7f8159caad3
ancestor: add lazy membership testing to lazyancestors
This also makes the perfancestorset command use lazy membership testing. In a
linear repository with over 400,000 commits, without this patch, hg
perfancestorset takes 0.80 seconds no matter how far behind we're looking.
With this patch, hg perfancestorset -- X takes:
Rev X Time
-1 0.00s
-4000 0.01s
-20000 0.04s
-80000 0.17s
-200000 0.43s
-300000 0.69s
0 0.88s
Thus, for revisions close to tip, we're up to several orders of magnitude
faster. At 0 we're around 10% slower.
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Tue, 18 Dec 2012 12:47:20 -0800 |
parents | 1ac628cd7113 |
children | dedab036215d |
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# Disable the $CAP wire protocol capability. if test -z "$CAP" then echo "CAP environment variable not set." fi cat > notcapable-$CAP.py << EOF from mercurial import extensions, peer, localrepo def extsetup(): extensions.wrapfunction(peer.peerrepository, 'capable', wrapcapable) extensions.wrapfunction(localrepo.localrepository, 'peer', wrappeer) def wrapcapable(orig, self, name, *args, **kwargs): if name in '$CAP'.split(' '): return False return orig(self, name, *args, **kwargs) def wrappeer(orig, self): # Since we're disabling some newer features, we need to make sure local # repos add in the legacy features again. return localrepo.locallegacypeer(self) EOF echo '[extensions]' >> $HGRCPATH echo "notcapable-$CAP = `pwd`/notcapable-$CAP.py" >> $HGRCPATH