[darcs-devel] [issue1585] hashed repo whatsnew much slower on Windows and Linux
Eric Kow
bugs at darcs.net
Fri Aug 28 16:33:04 UTC 2009
New submission from Eric Kow <kowey at darcs.net>:
>From Simon Marlow on
http://lists.osuosl.org/pipermail/darcs-users/2009-August/021058.html
:
$ darcs show repo
Type: darcs
Format: hashed
Root: d:/builds/ghc-testing
Pristine: HashedPristine
Cache: thisrepo:d:/builds/ghc-testing, cache:C:\Documents and
Settings\simonmar\Application Data\darcs\cache
boringfile Pref: .darcs-boring
Default Remote: x:/ghc-HEAD
Num Patches: 21106
$ time darcs w -s
No changes!
real 0m3.126s
user 0m0.000s
sys 0m0.015s
$ darcs --version
2.3.0 (release)
Compared to Linux, where the time is ~0.25s. These are all local
filesystems.
-----------
So we've eliminated issue973 and we're using local drives only and we have
Petr's issue1202 patches. So what's a reasonable way to attack this?
Why are we fast on Linux and slow on Windows?
I guess we can start with profiling.
Simon: what happens when you run whatsnew a second time? Could it be some need
to build the index first and then use it later?
----------
messages: 8575
nosy: darcs-devel, dmitry.kurochkin, kowey, mornfall, simonmar
priority: bug
status: need-action
title: hashed repo whatsnew much slower on Windows and Linux
topic: Hashed, Performance
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Darcs bug tracker <bugs at darcs.net>
<http://bugs.darcs.net/issue1585>
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