Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-pull.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 | 4e35843b2683 |
| children | 9d1c3529ebbc |
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(the addremove command is deprecated; use add and remove --after instead) adding foo checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 1 changesets, 1 total revisions requesting all changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files 1 files updated, 0 files merged, 0 files removed, 0 files unresolved checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 1 changesets, 1 total revisions 0 files updated, 0 files merged, 0 files removed, 0 files unresolved foo 2ed2a3912a0b24502043eae84ee4b279c18b90dd 644 foo pulling from http://localhost:20059/ searching for changes no changes found