Mercurial > hg
view mercurial/pushkey.py @ 17236:9fb8312dbdbd stable
encoding: add fast-path for ASCII uppercase.
This copies the performance hack from encoding.lower (c481761033bd).
The case-folding logic that kicks in on case-insensitive filesystems
hits encoding.upper hard: with a repository with 75k files, the
timings went from
hg perfstatus
! wall 3.156000 comb 3.156250 user 1.625000 sys 1.531250 (best of 3)
to
hg perfstatus
! wall 2.390000 comb 2.390625 user 1.078125 sys 1.312500 (best of 5)
This is a 24% decrease. For comparison, Mercurial 2.0 gives:
hg perfstatus
! wall 2.172000 comb 2.171875 user 0.984375 sys 1.187500 (best of 5)
so we're only 10% slower than before we added the extra case-folding
logic.
The same decrease is seen when executing 'hg status' as normal, where
we go from:
hg status --time
time: real 4.322 secs (user 2.219+0.000 sys 2.094+0.000)
to
hg status --time
time: real 3.307 secs (user 1.750+0.000 sys 1.547+0.000)
author | Martin Geisler <mg@aragost.com> |
---|---|
date | Mon, 23 Jul 2012 15:55:26 -0600 |
parents | 28ed1c4511ce |
children | 59c14bf5a48c |
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# pushkey.py - dispatching for pushing and pulling keys # # Copyright 2010 Matt Mackall <mpm@selenic.com> # # This software may be used and distributed according to the terms of the # GNU General Public License version 2 or any later version. import bookmarks, phases, obsolete def _nslist(repo): n = {} for k in _namespaces: n[k] = "" return n _namespaces = {"namespaces": (lambda *x: False, _nslist), "bookmarks": (bookmarks.pushbookmark, bookmarks.listbookmarks), "phases": (phases.pushphase, phases.listphases), "obsolete": (obsolete.pushmarker, obsolete.listmarkers), } def register(namespace, pushkey, listkeys): _namespaces[namespace] = (pushkey, listkeys) def _get(namespace): return _namespaces.get(namespace, (lambda *x: False, lambda *x: {})) def push(repo, namespace, key, old, new): '''should succeed iff value was old''' pk = _get(namespace)[0] return pk(repo, key, old, new) def list(repo, namespace): '''return a dict''' lk = _get(namespace)[1] return lk(repo)