Hi Matthias, On Wed, Jun 10, 2009 at 11:12:24 +0200, Matthias Kilian wrote: > I converted my mirrored GHC repositories to hashed format (using > darcs-2.2.0) recently. May be useful for anyone who want's to try > it out without having to convert it by himself (the latter is really > painful, since it's slow and eats up lots of memory).
[snip] > BTW: the time for darcs get with a hashed repository is amazing > (6m18s for both ghc and ghc-6.10 including all dependencies listed > in ghc/packages). Thanks so much for doing this! This is one of those important things to try that nobody ever gets around to. Any chance we could have a timing test for the old fashioned repo on the same server just to rule out confounding factors? So we'd be comparing old-fashioned d.h.org with old-fashioned d.v.de with hashed d.v.de... I was going to request that you set up a cron job for regular pull, but I see you've already taken care of it. :-) Also: If you copied http://darcs.haskell.org/ghc/_darcs/prefs/email into the ghc/_darcs/prefs on that server, people could transparently use that repository on a regular basis. Alternatively, you could set up the motd to get them to pull from d.h.o instead. > Please read about.txt if you plan to use it for real. Summary for the interested: it pulls every hour, the repos are hashed and a lot faster and... | Please note that there's also a ghc build slave running on this | host, which tends to make it aparently unavailable when haddock or | the test suite are running. The test builds are triggered every day | at 04:00 (timezone Europe/Berlin, that's currently 02:00 UTC), and | take about 12 hours. During that time, there are four or five moments | when the machine starts swapping very heavily and you can get | timeouts when trying to fetch from it. -- Eric Kow <http://www.nltg.brighton.ac.uk/home/Eric.Kow> PGP Key ID: 08AC04F9
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