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diff mercurial/localrepo.py @ 35317:137a08d82232

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transaction: build changes['revs'] as range instead of a set Revisions are added consecutively, so a range can easily represent them in the changes list. This saves around 45 Bytes / revision on 64bit platforms and reduces the memory footprint of issue5691 by 15MB. Don't copy changes['revs'] in getobsoleted. Ranges have a very efficient contains implementation already. Differential Revision: https://phab.mercurial-scm.org/D1615
author Joerg Sonnenberger <joerg@bec.de>
date Fri, 08 Dec 2017 01:23:34 +0100
parents c752fbe228fb
children d13526333835
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line diff
--- a/mercurial/localrepo.py	Wed Dec 06 16:43:07 2017 -0500
+++ b/mercurial/localrepo.py	Fri Dec 08 01:23:34 2017 +0100
@@ -1275,7 +1275,7 @@
                                      validator=validate,
                                      releasefn=releasefn,
                                      checkambigfiles=_cachedfiles)
-        tr.changes['revs'] = set()
+        tr.changes['revs'] = xrange(0, 0)
         tr.changes['obsmarkers'] = set()
         tr.changes['phases'] = {}
         tr.changes['bookmarks'] = {}