Mercurial > hg > mercurial-crew-with-dirclash
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dirstate walking optimizations
The repo walking code introduces a number of calls to dirstate.map.copy(),
significantly slowing down the walk on large trees. When a list of
files is passed to the walking code, we should only look at map entries
relevant to the file list passed in.
dirstate.filterfiles() is added to return a subset of the dirstate map.
The subset includes in files passed in, and if one of the files requested
is actually a directory, it includes any files inside that directory tree.
This brings the time for hg diff Makefile down from 1.7s to .3s on
a linux kernel repo.
Also, the diff command was unconditionally calling makewalk, leading
to an extra pass through repo.changes. This patch avoids the call
to makewalk when commands.diff isn't given a list of patterns, cutting
the time for hg diff (with no args) in half.
Index: mine/mercurial/hg.py
===================================================================
author | mason@suse.com |
---|---|
date | Fri, 12 Aug 2005 07:10:21 -0800 |
parents | 51626d888526 |
children | 0843e1bf2b97 |
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<table class="changelogEntry parity#parity#"> <tr> <th class="age">#date|age# ago:</th> <th class="firstline">#desc|firstline|escape#</th> </tr> <tr> <th class="changesetRev">changeset #rev#:</th> <td class="changesetNode"><a href="?cmd=changeset;node=#node#">#node|short#</a></td> </tr> #parent# #changelogtag# <tr> <th class="author">author:</th> <td class="author">#author|obfuscate#</td> </tr> <tr> <th class="date">date:</th> <td class="date">#date|date#</td> </tr> <tr> <th class="files"><a href="?cmd=manifest;manifest=#manifest#;path=/">files</a>:</th> <td class="files">#files#</td> </tr> </table>