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  • Committer: John Arbash Meinel
  • Date: 2009-10-17 04:43:14 UTC
  • mto: This revision was merged to the branch mainline in revision 4756.
  • Revision ID: john@arbash-meinel.com-20091017044314-nlvrrqnz0f2wzcp4
change the GroupcompressBlock code a bit.
If the first decompress request is big enough, just decompress everything.
And when we do that, let go of the decompressobj.

After digging through the zlib code, it looks like 1 zlib stream object
contains a 5kB internal state, and another 4*64kB buffers. (about 260kB
of total state.)
That turns out to be quite a lot if you think about it.


In the case of branching a copy of 'bzr.dev' locally, this turned out
to be 383MB w/ bzr.dev and 345MB w/ only this patch. (So ~11% of peak).

Also, this was 'unreferenced' memory, because it is hidden in the
zlib internal state in working buffers. So it wasn't memory that Meliae
could find. \o/.

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setup.py
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#!/usr/bin/env python
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from distutils.core import setup
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setup(name='bzr-git',
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      description='Support for Git branches in Bazaar',
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      keywords='plugin bzr git bazaar',
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      version='0.1',
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      url='http://bazaar-vcs.org/BzrForeignBranches/Git',
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      license='GPL',
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      author='Robert Collins',
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      author_email='robertc@robertcollins.net',
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      long_description="""
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      This plugin adds limited support for checking out and viewing 
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      Git branches in Bazaar.
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      """,
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      package_dir={'bzrlib.plugins.git':'.'},
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      packages=['bzrlib.plugins.git'],
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      scripts=['bzr-receive-pack', 'bzr-upload-pack'],
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      )