view tests/test-webraw @ 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 83cfd95eafb5
children e3a0c092b4e2
line wrap: on
line source

#!/bin/sh

hg init test
cd test
cat >sometext.txt <<ENDSOME
This is just some random text
that will go inside the file and take a few lines.
It is very boring to read, but computers don't
care about things like that.
ENDSOME
hg add sometext.txt
hg commit -d "1 0" -m "Just some text"
hg serve -p 20059 -A access.log -E error.log -d --pid-file=hg.pid
cat hg.pid >> $DAEMON_PIDS
("$TESTDIR/get-with-headers.py" localhost:20059 '/?f=f165dc289438;file=sometext.txt;style=raw' content-type content-length content-disposition) >getoutput.txt &

sleep 5
kill `cat hg.pid`
sleep 1 # wait for server to scream and die
cat getoutput.txt
cat access.log error.log | \
  sed 's/^[^ ]*\( [^[]*\[\)[^]]*\(\].*\)$/host\1date\2/'