On 08/03/11 09:34, Ivan Zhakov wrote: > On Tue, Mar 8, 2011 at 12:21, John Beranek <j...@redux.org.uk> wrote: >> On 08/03/11 05:34, Justin Erenkrantz wrote: >>> On Mon, Mar 7, 2011 at 3:26 PM, John Beranek <j...@redux.org.uk> wrote: >>>> Hmm...I'm surprised (and disappointed). No one is interested in >>>> Subversion 1.7 being lower performance than 1.6? >>> >>> You're not telling us something we don't already know (go read the >>> archives some time). Many folks are still working on improving the >>> performance of 1.7...so, general complaints aren't going to be >>> terribly productive. >> >> I think "general complaints" is a bit unfair on me. >> >> I posted specific timings using the current trunk code, in case it was >> news to anyone. >> >> I guess from now on I'll just keep my investigations to myself. >> > Hi John, > > I'm really interested of performance tests especially of ra_serf. > Performance degradation of svn import over ra_serf looks very strange. > Could you please provide more details about your configuration?
OK, I've been a bit more rigorous on my latest ra_serf import tests. So, on a Fedora 14 x86_64 machine (gcc 4.5.1, APR 1.3.9) I built 1.6.16 with serf 0.7.1, and trunk(r1078338) with serf 0.7.1. I imported the same dataset over HTTP to another server on the LAN. This server runs Apache 2.2.3 with mod_dav_svn 1.6.15, it is a CentOS 5.5 machine. So, the timings: 1.6.16 (http-library=neon): real 0m17.105s user 0m1.133s sys 0m1.343s trunk (http-library=neon): real 0m15.881s user 0m0.968s sys 0m1.029s 1.6.16 (http-library=serf): real 2m46.610s user 0m1.277s sys 0m1.543s trunk (http-library=serf): real 2m45.159s user 0m1.057s sys 0m1.169s Now, that is looking like a serious problem, rather different to my previous comparison, which compared a remote ra_neon access to a local ra_serf access. So, as a comparison, I ran the same tests to a localhost trunk(r1078338) server. Fedora 14 x86_64, Apache 2.2.17. 1.6.16 (http-library=neon): real 0m21.209s user 0m0.978s sys 0m1.823s trunk (http-library=neon): real 0m20.785s user 0m0.912s sys 0m1.659s 1.6.16 (http-library=serf): real 0m23.369s user 0m0.956s sys 0m1.953s trunk (http-library=serf): real 0m21.351s user 0m0.873s sys 0m1.639s Cheers, John. -- John Beranek To generalise is to be an idiot. http://redux.org.uk/ -- William Blake
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