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Re: performance enhancement by working copy svn server

From: Martin v. Löwis <Martin.vonLoewis_at_hpi.uni-potsdam.de>
Date: Tue, 22 Apr 2008 00:19:09 +0200

> I challenge the idea that scanning the whole tree could possibly ever
> be "fast." Yes, if you do it once and repeat it, then you're
> benefitting from the cache on the 2nd run - For my users that makes
> the difference between 10 minutes and 30 seconds. But they're only
> going to svn up (or whatever) ... once, twice, three times a day ...
> And the system is doing actual work in parallel. So they never
> benefit from the cache. Every time they scan the tree, it takes 10
> minutes.

For how many files? On what file system?

10 minutes is definitely too long. You can scan the disk much much much
faster. A Python script I just wrote that stat's /usr on Linux
(partially cached), I can stat 323347 files in 213s.


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Received on 2008-04-22 07:25:59 CEST

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