Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-flags.out @ 2577:fa76c5d609c9
bdiff: improve worst case behavior by 100x.
on 5.8MB (244.000 lines) text file with similar lines, hash before
this change made diff against empty file take 75 seconds. this change
improves performance to 0.6 seconds. result is that clone of smallish
repo (137MB) with some files like this takes 1 minute instead of 10
minutes.
common case of diff is 10% slower now, probably because of worse cache
locality. but diff does not affect overall performance in common case
(less than 1% of runtime is in diff when it is working ok), so this
tradeoff looks good.
| author | Vadim Gelfer <vadim.gelfer@gmail.com> |
|---|---|
| date | Fri, 07 Jul 2006 15:02:55 -0700 |
| parents | b2ae81a7df29 |
| children | 455109df3669 966632304dde |
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pulling from ../test1 requesting all changes adding changesets adding manifests adding file changes added 1 changesets with 2 changes to 2 files (run 'hg update' to get a working copy) 2 files updated, 0 files merged, 0 files removed, 0 files unresolved pulling from ../test2 searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) (run 'hg heads' to see heads, 'hg merge' to merge) changeset: 2:b833d578451e tag: tip parent: 0:4536b1c2ca69 user: test date: Mon Jan 12 13:46:40 1970 +0000 summary: chmod +x a changeset: 1:a187cb361a5a user: test date: Mon Jan 12 13:46:40 1970 +0000 summary: a updated changeset: 2:b833d578451e tag: tip parent: 0:4536b1c2ca69 user: test date: Mon Jan 12 13:46:40 1970 +0000 summary: chmod +x a changeset: 1:a187cb361a5a user: test date: Mon Jan 12 13:46:40 1970 +0000 summary: a updated changeset: 0:4536b1c2ca69 user: test date: Mon Jan 12 13:46:40 1970 +0000 summary: added a b resolving manifests merging a resolving a 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) -rwxr-x--- -rwxr-x---