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Re: Subversion on various Linux file systems performance test

From: Julian Foad <julianfoad_at_btopenworld.com>
Date: 2003-11-20 19:08:51 CET

Brandon Ehle wrote:
> Here is the results of my Subversion benchmark running checkout with the
> working copy and repository located on various file systems.
>
> The major points that I've gleamed from this test.
>
> * Linux 2.6 will provide a fast host for Subversion repositories when
> its ready.
> * JFS, FAT32, & ReiserFS make poor working copy hosts (client side).
> * All of the file systems performed well for hosting the repository
> (server side).
> * The version of ReiserFS used in this test is 3.6. I would like to
> repeat this test with Reiser4 when it starts merging into the kernel.
>
> http://subversion.kicks-ass.org/svn-fs-bench/

Interesting. I'm using ReiserFS 3.6.9 on kernel 2.4.21 (SuSE 9); it's a shame you don't have that combination. I am surprised to see ReiserFS performing so badly for a WC, but I see that FAT32 is also much slower for a WC on kernel 2.6.test9 than it was on kernel 2.4 (and yet much faster for the server), so maybe ResiserFS is not too bad on kernel 2.4.

I don't know how far advanced the kernel 2.6 is. Is it possible that it will yet be "tweaked" or "fixed" so that the performance on FAT32 WCs (and hopefully ReiserFS) is not so much worse than 2.4 was?

Did you repeat these tests and check that there was not significant variation due to cacheing etc.?

- Julian

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Received on Thu Nov 20 19:07:48 2003

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