This doesn't address memcached directly, but there has been a /lot/ of work on server-side optimization and caching in 1.7 (also for non-memcached-backed caches).
http://subversion.apache.org/docs/release-notes/1.7#server-performance-tuning You might want to take 1.7.0-alpha3 for a spin... Tony Butt wrote on Wed, Jul 06, 2011 at 15:20:27 +1000: > We are running subversion 1.6.17 on a vmware hosted server. We recently > reconfigured the server to give 4 virtual CPUs (up from 1), and a > significant amount of memory. > > > In order to spruce up our performance a little, I looked into the use of > memcached with subversion again, found the correct config parameter, and > set it up. Our server is running Ubuntu 10.04, Apache 2.2. Access > mechanism is http (of course). The client used is running Ubuntu 11.04, > and svn commandline (1.6.17 also) > > The results were interesting, to say the least. > > Checkout of a tree, about 250M in size: > > Without memcached, 1 1/2 to 2 minutes, varies with server load > With memcached, 12 minutes (!) > > Update of the same tree, > Without memcached, 9 seconds > With memcached, 14 seconds - repeated several times, similar results. > > I am not sure what anyone else's experience is, but we will not be > enabling memcached for subversion any time soon. > -- > Tony Butt <t...@cea.com.au> > CEA Technologies >
