view tests/fixtures/remove_tag_test.svndump @ 931:e1dbd9646d6a

svnwrap: use custom StringIO class in get_file() The wrappers were calling ra.get_file() with a cStringIO object. Empirically, svn 1.7.5 is writing 16kB blocks to the stream object, and cStringIO reallocates its internal buffer and doubles its size whenever it is filled. With large committed files this requires two large memory blocks at the same time. SimpleStringIO implements the mimimum StringIO interface used by ra.get_file() but instead stores all the blocks and "join" them at the end. It means more fragmentation but requires only one large block, without overallocation. Also, 16kB blocks should be friendly to most allocators. In practice, this simple change let me convert a revision containing multiple moderately large files, the largest being around 450MB, with a 32-bits Windows setup, python 2.7, swig svn 1.7.5, in stupid mode, while it was previously aborting with "not enough memory". The same revision still fails in replay mode.
author Patrick Mezard <patrick@mezard.eu>
date Sun, 16 Sep 2012 19:31:49 +0200
parents 1f8854804795
children
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SVN-fs-dump-format-version: 2

UUID: df2126f7-00ab-4d49-b42c-7e981dde0bcf

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Prop-content-length: 56
Content-length: 56

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svn:date
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2008-10-07T22:49:12.059692Z
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svn:log
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Empty dirs.
K 10
svn:author
V 5
durin
K 8
svn:date
V 27
2008-10-07T22:49:41.118037Z
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Node-path: branches
Node-kind: dir
Node-action: add
Prop-content-length: 10
Content-length: 10

PROPS-END


Node-path: tags
Node-kind: dir
Node-action: add
Prop-content-length: 10
Content-length: 10

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Node-path: trunk
Node-kind: dir
Node-action: add
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Content-length: 10

PROPS-END


Revision-number: 2
Prop-content-length: 108
Content-length: 108

K 7
svn:log
V 9
Add alpha
K 10
svn:author
V 5
durin
K 8
svn:date
V 27
2008-10-07T23:23:02.991743Z
PROPS-END

Node-path: trunk/alpha
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Text-content-length: 12
Text-content-md5: 3c72ebf8bbd7fa88b1fdcee5398b5a17
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file: alpha


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svn:log
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Add beta
K 10
svn:author
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durin
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svn:date
V 27
2008-10-07T23:28:22.651398Z
PROPS-END

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Data of beta


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svn:log
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tagging r3
K 10
svn:author
V 5
durin
K 8
svn:date
V 27
2008-10-08T23:18:29.837825Z
PROPS-END

Node-path: tags/tag_r3
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Node-action: add
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svn:mergeinfo
V 0

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Revision-number: 5
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svn:log
V 14
tag from a tag
K 10
svn:author
V 5
durin
K 8
svn:date
V 27
2008-10-08T23:18:51.091356Z
PROPS-END

Node-path: tags/copied_tag
Node-kind: dir
Node-action: add
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Node-copyfrom-path: tags/tag_r3


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Content-length: 112

K 7
svn:log
V 12
rename a tag
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svn:author
V 5
durin
K 8
svn:date
V 27
2008-10-08T23:20:23.431085Z
PROPS-END

Node-path: tags/other_tag_r3
Node-kind: dir
Node-action: add
Node-copyfrom-rev: 5
Node-copyfrom-path: tags/copied_tag


Node-path: tags/copied_tag
Node-action: delete


Revision-number: 7
Prop-content-length: 120
Content-length: 120

K 7
svn:log
V 20
remove a tag as well
K 10
svn:author
V 5
durin
K 8
svn:date
V 27
2008-10-08T23:21:43.223062Z
PROPS-END

Node-path: tags/other_tag_r3
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