Mercurial > hg > mercurial-crew-with-dirclash
view hg @ 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 | 55860a45bbf2 |
| children |
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#!/usr/bin/env python # # mercurial - scalable distributed SCM # # Copyright 2005-2007 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms # of the GNU General Public License, incorporated herein by reference. # enable importing on demand to reduce startup time from mercurial import demandimport; demandimport.enable() import mercurial.dispatch mercurial.dispatch.run()