Mercurial > hg-stable

changeset 16533:95698ee29181 stable

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revlog: backout e5750c6716eb This regresses performance of 'hg branches', presumably because it's visiting the revlog in the wrong order. This suggests we either need to fix the branch code or add some read-behind to mitigate the effect.
author Matt Mackall <mpm@selenic.com>
date Fri, 27 Apr 2012 13:07:29 -0500
parents 9eba72cdde34
children 11212babc690
files mercurial/revlog.py
diffstat 1 files changed, 1 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/revlog.py	Thu Apr 26 03:47:17 2012 +0200
+++ b/mercurial/revlog.py	Fri Apr 27 13:07:29 2012 -0500
@@ -812,7 +812,7 @@
         else:
             df = self.opener(self.datafile)
 
-        readahead = max(_chunksize, length)
+        readahead = max(65536, length)
         df.seek(offset)
         d = df.read(readahead)
         df.close()