Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-revert @ 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 | e9a0ed9ed4d9 |
children | 890e285c52a1 |
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#!/bin/sh hg init echo 123 > a echo 123 > c echo 123 > e hg add a c e hg commit -m "first" -d "1000000 0" a c e echo 123 > b echo %% should show b unknown hg status echo 12 > c echo %% should show b unknown and c modified hg status hg add b echo %% should show b added and c modified hg status hg rm a echo %% should show a removed, b added and c modified hg status hg revert a echo %% should show b added, copy saved, and c modified hg status hg revert b echo %% should show b unknown, and c modified hg status hg revert --no-backup c echo %% should show unknown: b hg status echo %% should show a b c e ls echo %% should verbosely save backup to e.orig echo z > e hg revert -v echo %% should say no changes needed hg revert a echo %% should say file not managed echo q > q hg revert q rm q echo %% should say file not found hg revert notfound hg rm a hg commit -m "second" -d "1000000 0" echo z > z hg add z hg st echo %% should add a, forget z hg revert -r0 echo %% should forget a hg revert -rtip rm -f a *.orig echo %% should silently add a hg revert -r0 a hg st a hg update -C chmod +x c hg revert echo %% should print non-executable test -x c || echo non-executable chmod +x c hg commit -d '1000001 0' -m exe chmod -x c hg revert echo %% should print executable test -x c && echo executable echo %% issue 241 hg init a cd a echo a >> a hg commit -A -d '1 0' -m a echo a >> a hg commit -d '2 0' -m a hg update 0 mkdir b echo b > b/b hg revert -rtip true