[darcs-users] performance regression in check/repair

Eric Kow kowey at darcs.net
Thu Jan 14 15:02:38 UTC 2010


On Thu, Jan 14, 2010 at 06:31:04 -0800, Jason Dagit wrote:
>                 ||  darcs        | darcs-2.3.1
> ================++===============+===================
>           check ||  41.1s 253.0M |       11.0s  55.0M
>          repair ||  40.7s 247.0M |       11.0s  55.0M
 
> === ghc-hashed ===
> 
>                 ||   darcs        | darcs-2.3.1
> ================++================+===================
>           check ||       -      - |      186.2s 142.0M
>          repair || 1223.2s 370.0M |      130.6s 146.0M

> Looks like repair has gotten much worse :(  Check didn't complete?

I'll note that Kevin Quick posted a bug report about a noticeable Darcs
2.3.x having a performance regression wrt 2.2.x in check/repair/whatsnew

   http://bugs.darcs.net/issue1678

Do I understand correctly that it's just gotten even worse?  Do you
think you could also add a darcs-2.2 to that mix?

I guess we can't really worry about this for the Darcs 2.4 release; we
have to focus on hitting the repo-local operations.

-- 
Eric Kow <http://www.nltg.brighton.ac.uk/home/Eric.Kow>
PGP Key ID: 08AC04F9
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