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Re: Subversion trunk (r1078338) HTTP(/WC?) performance problems?

From: Ivan Zhakov <ivan_at_visualsvn.com>
Date: Sun, 13 Mar 2011 00:15:06 +0300

On Thu, Mar 10, 2011 at 20:10, Philip Martin <philip.martin_at_wandisco.com> wrote:
> Ivan Zhakov <ivan_at_visualsvn.com> writes:
>
>>> The one small anomaly is 1.7/serf against a 1.6 server, it is fast but
>>> it uses a bit more CPU. (I'm using r1080251).
>>>
>> That is expected performance improvement because of r1080245 [1]:
>> [[[
>> ra_serf: Implement DAV baseline cache . This is dramatically reduces number
>> of PROPFIND requests when working with pre-1.7 servers and improve
>> performance over WAN.
>> ]]]
>>
>> http://svn.apache.org/viewvc?rev=1080245
>
> Does that have any effect on export?  I've tried r1080244 and r1080245.
> They use similar amounts of CPU, take similar amounts of time and both
> cause 3884 lines in Apache's access log.
>
You're right. svn export uses just several PROPFINDs, so it should be
significant performance improvement.

I investigated your problem with high CPU usage and fixed in serf in
r1456. Could you please test it and confirm that problem with high CPU
load is fixed in your case?

-- 
Ivan Zhakov
Received on 2011-03-12 22:16:01 CET

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