Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-imerge @ 5451:0a43875677b1
revlog: break up compression of large deltas
Python's zlib apparently makes an internal copy of strings passed to
compress(). To avoid this, compress strings 1M at a time, then join
them at the end if the result would be smaller than the original.
For initial commits of large but compressible files, this cuts peak
memory usage nearly in half.
author | Matt Mackall <mpm@selenic.com> |
---|---|
date | Thu, 11 Oct 2007 00:46:54 -0500 |
parents | 9cd6578750b9 |
children |
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#!/bin/sh echo "[extensions]" >> $HGRCPATH echo "imerge=" >> $HGRCPATH HGMERGE=true export HGMERGE hg init base cd base echo foo > foo echo bar > bar hg ci -Am0 -d '0 0' hg mv foo foo2 echo foo >> foo2 hg ci -m1 -d '1 0' hg up -C 0 echo bar >> foo echo bar >> bar hg ci -m2 -d '2 0' echo % start imerge hg imerge cat foo2 cat bar echo % status -v hg -v imerge st echo % next hg imerge next echo % merge next hg --traceback imerge echo % unresolve hg imerge unres foo echo % merge foo hg imerge merge foo echo % save echo foo > foo2 hg imerge save ../savedmerge echo % load hg up -C 0 hg imerge --traceback load ../savedmerge cat foo2 hg ci -m'merged' -d '3 0' hg tip -v echo % nothing to merge -- tip hg imerge hg up 0 echo % nothing to merge hg imerge exit 0