Mercurial > hg
annotate doc/README @ 26402:05871262acd5
treemanifest: rework lazy-copying code (issue4840)
The old lazy-copy code formed a chain of copied manifests with each
copy. Under typical operation, the stack never got more than a couple
of manifests deep and was fine. Under conditions like hgsubversion or
convert, the stack could get hundreds of manifests deep, and
eventually overflow the recursion limit for Python. I was able to
consistently reproduce this by converting an hgsubversion clone of
svn's history to treemanifests.
This may result in fewer manifests staying in memory during operations
like convert when treemanifests are in use, and should make those
operations faster since there will be significantly fewer noop
function calls going on.
A previous attempt (never mailed) of mine to fix this problem tried to
simply have all treemanifests only have a loadfunc - that caused
somewhat weird problems because the gettext() callable passed into
read() wasn't idempotent, so the easy solution is to have a loadfunc
and a copyfunc.
author | Augie Fackler <augie@google.com> |
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date | Fri, 25 Sep 2015 22:54:46 -0400 |
parents | 3516a4e877c1 |
children |
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doc: update README with links to Docutils
Martin Geisler <mg@lazybytes.net>
parents:
5048
diff
changeset
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1 Mercurial's documentation is kept in reStructuredText format, which is |
bc1de09090bc
doc: update README with links to Docutils
Martin Geisler <mg@lazybytes.net>
parents:
5048
diff
changeset
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2 a simple plain text format that's easy to read and edit: |
177 | 3 |
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doc: update README with links to Docutils
Martin Geisler <mg@lazybytes.net>
parents:
5048
diff
changeset
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4 http://docutils.sourceforge.net/rst.html |
177 | 5 |
9172
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doc: update README with links to Docutils
Martin Geisler <mg@lazybytes.net>
parents:
5048
diff
changeset
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6 It's also convertible to a variety of other formats including standard |
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doc/README: simplify instructions
Martin Geisler <mg@lazybytes.net>
parents:
9406
diff
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7 UNIX man page format and HTML. You'll need to install Docutils: |
177 | 8 |
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doc: update README with links to Docutils
Martin Geisler <mg@lazybytes.net>
parents:
5048
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changeset
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9 http://docutils.sourceforge.net/ |
177 | 10 |
9172
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doc: update README with links to Docutils
Martin Geisler <mg@lazybytes.net>
parents:
5048
diff
changeset
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11 Use the Makefile in this directory to generate the man and HTML pages. |