tests/test-revlog-mmapindex.t
author Gregory Szorc <gregory.szorc@gmail.com>
Thu, 02 Aug 2018 09:53:22 -0700
changeset 38886 66cf046ef60f
parent 35404 6ebe899b6551
child 48876 42d2b31cee0b
permissions -rw-r--r--
changegroup: move revchunk() from narrow The monkeypatched revchunk for ellipses serving is a completely independent implementation. We model it as such in the changegroup code. revchunk() is now a simple proxy function. Again, I wish we had better APIs here. Especially since this narrow code is part of cg1packer and cg1packer can't be used with narrow. Class inheritance is wonky. And I will definitely be making changes to changegroup code for delta generation. As part of the code move, `node.nullrev` was replaced by `nullrev`. And a reference to `orig` was replaced to call `self._revchunknormal` directly. Differential Revision: https://phab.mercurial-scm.org/D4063
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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create verbosemmap.py
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  $ cat << EOF > verbosemmap.py
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  > # extension to make util.mmapread verbose
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  > 
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  > from __future__ import absolute_import
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  > 
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  > from mercurial import (
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  >     extensions,
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  >     pycompat,
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  >     util,
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  > )
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  > 
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  > def extsetup(ui):
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  >     def mmapread(orig, fp):
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  >         ui.write(b"mmapping %s\n" % pycompat.bytestr(fp.name))
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  >         ui.flush()
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  >         return orig(fp)
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  > 
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  >     extensions.wrapfunction(util, 'mmapread', mmapread)
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  > EOF
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setting up base repo
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  $ hg init a
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  $ cd a
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  $ touch a
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  $ hg add a
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  $ hg commit -qm base
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  $ for i in `$TESTDIR/seq.py 1 100` ; do
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  > echo $i > a
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  > hg commit -qm $i
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  > done
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set up verbosemmap extension
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  $ cat << EOF >> $HGRCPATH
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  > [extensions]
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  > verbosemmap=$TESTTMP/verbosemmap.py
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  > EOF
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mmap index which is now more than 4k long
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  $ hg log -l 5 -T '{rev}\n' --config experimental.mmapindexthreshold=4k
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  mmapping $TESTTMP/a/.hg/store/00changelog.i
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  100
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  99
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  96
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do not mmap index which is still less than 32k
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  $ hg log -l 5 -T '{rev}\n' --config experimental.mmapindexthreshold=32k
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  100
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  $ cd ..