On 08/03/11 17:34, Ivan Zhakov wrote: > On Tue, Mar 8, 2011 at 19:49, Philip Martin <philip.mar...@wandisco.com> > wrote: >> Ivan Zhakov <i...@visualsvn.com> writes: >> >>> So, as a comparison, I ran the same tests to a localhost trunk(r1078338) >>> server. Fedora 14 x86_64, Apache 2.2.17. >>> >>> trunk (http-library=neon): >>> real 0m20.785s >>> user 0m0.912s >>> sys 0m1.659s >>> >>> trunk (http-library=serf): >>> real 0m21.351s >>> user 0m0.873s >>> sys 0m1.639s >>> ]] >>> >>> But with remote server running 1.6.16: >>> [[[ >>> trunk (http-library=neon): >>> real 0m15.881s >>> user 0m0.968s >>> sys 0m1.029s >>> >>> trunk (http-library=serf): >>> real 2m45.159s >>> user 0m1.057s >>> sys 0m1.169s >>> ]]] >>> >>> 15 seconds with ra_neon against 2:45 minutes with ra_serf. >> >> Importing a Subversion wc, client on laptop, server on desktop, across >> LAN: >> >> 1.6.x client, 1.6.x server, serf : 20s >> trunk client, 1.6.x server, serf : 34s >> 1.6.x client, trunk server, serf : 20s >> trunk client, trunk server, serf : 34s >> any client, any server, neon : 20s >> >> So here it's serf-0.7.1 that has the performance problem. >> > It seems I found reason why ra_serf is slower than ra_neon. ra_serf > sends CHECKOUT request for _each_ folder and file that being imported, > while ra_neon perform it only for root directory. Maybe DAV experts > can answer which behavior is correct: should WebDAV client CHECKOUT > each resource being modified or it's fine to CHECKOUT only the root of > commit operation?
This reminds me that it's readily apparent that there is still no pipelining being done on an import/commit in either ra_neon or ra_serf, even with a 'v2' server. Here's some numbers for that, again the same dataset I've been using, now using a benchmark script I have in development. trunk client in France -> trunk server in UK (ra_serf) 219s trunk client in France -> trunk server in UK (ra_neon) 133s trunk client in France -> trunk server in UK (ra_svn) 10s John. -- John Beranek To generalise is to be an idiot. http://redux.org.uk/ -- William Blake
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