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Re: svn commit: r1348131 - /subversion/trunk/subversion/libsvn_ra_serf/update.c

From: Philip Martin <philip.martin_at_wandisco.com>
Date: Fri, 08 Jun 2012 19:58:10 +0100

"C. Michael Pilato" <cmpilato_at_collab.net> writes:

> On 06/08/2012 01:41 PM, Mark Phippard wrote:
>> On Fri, Jun 8, 2012 at 12:01 PM, <cmpilato_at_apache.org> wrote:
>>> Author: cmpilato
>>> Date: Fri Jun 8 16:01:00 2012
>>> New Revision: 1348131
>>>
>>> URL: http://svn.apache.org/viewvc?rev=1348131&view=rev
>>> Log:
>>> Finish issue #4179 by eliminating no-op HEAD requests from ra_serf's
>>> checkout/update logic.
>>
>> Nice! This makes your other change of eliminating GET requests really
>> fly, at least in an idealized scenario.
>
> Thanks for providing some numbers. I'm on a flaky network today. I can't
> even complete two consecutive updates from the ASF repos. :-(

Figures from mod_status on my local mirror for the second update below:

svn co http://localhost:8080/repos/asf/subversion/trunk wc
svn up --set-depth empty wc
svn up --set-depth infinity wc

For a 1.7 client the server reports:

Total accesses: 4133 - Total Traffic: 45.9 MB
CPU Usage: u2.7 s.9 cu0 cs0 - 20% CPU load
230 requests/sec - 2.6 MB/second - 11.4 kB/request

For a 1.8 client the server reports:

Total accesses: 2188 - Total Traffic: 3.3 MB
CPU Usage: u1.64 s.58 cu0 cs0 - 22.2% CPU load
219 requests/sec - 341.8 kB/second - 1599 B/request

-- 
uberSVN: Apache Subversion Made Easy
http://www.uberSVN.com
Received on 2012-06-08 20:58:48 CEST

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