view tests/test-walk @ 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 df8416346bb7
children 01c4ea5e788c c93562fb12cc
line wrap: on
line source

#!/bin/sh

mkdir t
cd t
hg init
mkdir -p beans
for b in kidney navy turtle borlotti black pinto; do
    echo $b > beans/$b
done
mkdir -p mammals/Procyonidae
for m in cacomistle coatimundi raccoon; do
    echo $m > mammals/Procyonidae/$m
done
echo skunk > mammals/skunk
echo fennel > fennel
echo fenugreek > fenugreek
echo fiddlehead > fiddlehead
echo glob:glob > glob:glob
hg addremove
hg commit -m "commit #0" -d "1000000 0"
hg debugwalk
cd mammals
hg debugwalk .
hg debugwalk Procyonidae
cd Procyonidae
hg debugwalk .
hg debugwalk ..
cd ..
hg debugwalk ../beans
hg debugwalk .
hg debugwalk .hg
hg debugwalk ../.hg
cd ..
hg debugwalk -Ibeans
hg debugwalk 'glob:mammals/../beans/b*'
hg debugwalk '-X*/Procyonidae' mammals
hg debugwalk path:mammals
hg debugwalk ..
hg debugwalk beans/../..
hg debugwalk .hg
hg debugwalk beans/../.hg
hg debugwalk beans/../.hg/data
hg debugwalk beans/.hg
# Don't know how to test absolute paths without always getting a false
# error.
#hg debugwalk `pwd`/beans
#hg debugwalk `pwd`/..
hg debugwalk glob:\*
hg debugwalk 're:.*[kb]$'
hg debugwalk path:beans/black
hg debugwalk beans 'glob:beans/*'
hg debugwalk 'glob:j*'
hg debugwalk NOEXIST
mkfifo fifo
hg debugwalk fifo
rm fenugreek
hg debugwalk fenugreek
hg rm fenugreek
hg debugwalk fenugreek
touch new
hg debugwalk new