Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-parse-date.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 | c1974f65d781 |
| children | eef469259745 |
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reverting a changeset 3:107ce1ee2b43 backs out changeset 1:25a1420a55f8 merging with changeset 2:99a1acecff55 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) abort: invalid date: 'should fail' transaction abort! rollback completed abort: date exceeds 32 bits: 100000000000000000 transaction abort! rollback completed abort: impossible time zone offset: 1400000 transaction abort! rollback completed Sun Jun 11 00:26:40 2006 -0400 Sat Apr 15 13:30:00 2006 +0200 Sat Apr 15 13:30:00 2006 +0000 Wed Feb 01 13:00:30 2006 -0500 Wed Feb 01 13:00:30 2006 +0000