Mercurial > hgsubversion
annotate tests/fixtures/branch_prop_edit.sh @ 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> |
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date | Sun, 16 Sep 2012 19:31:49 +0200 |
parents | cf6fe8457570 |
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cf6fe8457570
Fix an apparent regression where branch name didn't get properly stored for
Augie Fackler <durin42@gmail.com>
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1 #!/bin/sh |
cf6fe8457570
Fix an apparent regression where branch name didn't get properly stored for
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2 mkdir temp |
cf6fe8457570
Fix an apparent regression where branch name didn't get properly stored for
Augie Fackler <durin42@gmail.com>
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3 cd temp |
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Fix an apparent regression where branch name didn't get properly stored for
Augie Fackler <durin42@gmail.com>
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4 svnadmin create repo |
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5 svn co file://`pwd`/repo wc |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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6 cd wc |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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7 mkdir branches trunk |
cf6fe8457570
Fix an apparent regression where branch name didn't get properly stored for
Augie Fackler <durin42@gmail.com>
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8 svn add * |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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9 svn ci -m 'branches trunk' |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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10 svn up |
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Augie Fackler <durin42@gmail.com>
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11 |
cf6fe8457570
Fix an apparent regression where branch name didn't get properly stored for
Augie Fackler <durin42@gmail.com>
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12 cd trunk |
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13 for a in alpha beta gamma ; do |
cf6fe8457570
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14 echo $a > $a |
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15 svn add $a |
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16 done |
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17 svn ci -m 'Files.' |
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18 cd .. |
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19 svn up |
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20 |
cf6fe8457570
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21 svn cp trunk branches/dev_branch |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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22 svn ci -m 'make a branch' |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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23 svn up |
cf6fe8457570
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24 |
cf6fe8457570
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25 cd branches/dev_branch |
cf6fe8457570
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26 echo epsilon > epsilon |
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27 svn add epsilon |
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28 svn ci -m 'Add a file on the branch.' |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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29 svn up |
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30 cd ../.. |
cf6fe8457570
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31 |
cf6fe8457570
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32 cd branches/dev_branch |
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33 svn ps 'svn:ignore' 'delta' . |
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34 svn ci -m 'Commit bogus propchange.' |
cf6fe8457570
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35 svn up |
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36 cd ../../.. |
cf6fe8457570
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37 |
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38 pwd |
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39 svnadmin dump repo > ../branch_prop_edit.svndump |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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40 cd .. |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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41 echo 'Dump created in branch_prop_edit.svndump. You can probably delete temp.' |
cf6fe8457570
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Augie Fackler <durin42@gmail.com>
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42 exit 0 |