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RE: svn ci performance issue with 1.7.x and nfs mounted working copies

From: Moe, Mark <mark.moe_at_medtronic.com>
Date: Tue, 1 May 2012 10:33:36 -0500

Yes, I tried it and it was very effective! See below:

                        1.6.17 1.7.4 1.7.4-patched
NFS benchmark* 1534s 4074s 572s
Local benchmark* 365s 162s 118s
NFS svn co 29s 163s 18s
Local svn co 4s 4s 3s

Are there any downsides to this patch? It sounds like the only downside is a delay to simultaneous read operations for the same working-copy. Those operations are very rare for compared to the huge gains in NFS working-copy performance.

Thanks for figuring out this patch!

- Mark

* The benchmark command runs a variety of svn commands and is from here https://ctf.open.collab.net/sf/wiki/do/viewPage/projects.csvn/wiki/BenchmarkInstructions.

-----Original Message-----
From: MARTIN PHILIP [mailto:codematters_at_ntlworld.com] On Behalf Of Philip Martin
Sent: Tuesday, May 01, 2012 3:19 AM
To: Moe, Mark
Cc: dev_at_subversion.apache.org
Subject: Re: svn ci performance issue with 1.7.x and nfs mounted working copies

Mark Moe <mark.moe_at_medtronic.com> writes:

> This is a big deal for us too. Will there be a configuration setting in an
> official svn 1.7.x version that we can use to enable the exclusive lock mode
> for SQLite? (assuming that is a valid fix for this issue)

Are you able to try a patch and tell us how effective it is?

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Received on 2012-05-01 18:18:01 CEST

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