Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-branches @ 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> |
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date | Thu, 11 Oct 2007 00:46:54 -0500 |
parents | 6858a7477a5e |
children |
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#!/bin/sh hg init a cd a echo 'root' >root hg add root hg commit -d '0 0' -u test -m "Adding root node" echo 'a' >a hg add a hg branch a hg commit -d '1 0' -u test -m "Adding a branch" hg update -C 0 echo 'b' >b hg add b hg branch b hg commit -d '2 0' -u test -m "Adding b branch" echo 'bh1' >bh1 hg add bh1 hg commit -d '3 0' -u test -m "Adding b branch head 1" hg update -C 2 echo 'bh2' >bh2 hg add bh2 hg commit -d '4 0' -u test -m "Adding b branch head 2" echo 'c' >c hg add c hg branch c hg commit -d '5 0' -u test -m "Adding c branch" hg branches echo '-------' hg branches -a