On Thu, May 12, 2011 at 2:12 AM, Justin Erenkrantz <jus...@erenkrantz.com> wrote: > On Wed, May 11, 2011 at 4:40 PM, Mark Phippard <markp...@gmail.com> wrote: >> The story using Serf is not as good. There are a few places where it >> is fastest, namely merge. But there are other cases where it is >> dramatically slower. The number of HTTP requests with Serf is 80,990. >> Looking at the numbers, it seems like Serf is slowest when it comes >> to the areas where it issues all those GET requests, such as checkout >> and update. On other operations it is more inline with Neon. Maybe > > r1102173 will help slightly when there are lots of checkouts as > ra_serf wasn't asking for the REPORT response to be compressed - doing > that saves a fair bit of traffic before the parallelization can begin. > (86k down to 16k for a checkout of notes/.) > > I'm also assuming you've appropriately configured your httpd server...see: > > http://mail-archives.apache.org/mod_mbox/subversion-dev/201101.mbox/%3CAANLkTi=AN-2BZgjSioowmEFgqFt5L=wyw9yzffayo...@mail.gmail.com%3E > > FWIW, in some quick local real-world tests, I see ra_neon and ra_serf > being within margin of error on checkouts - so I have a hunch it might > be something more pathological that a test suite would hit. I'm sure > those of us in Dublin or Berlin can look more. I'll be in Dublin this > weekend, but I won't be in Berlin... -- justin
I re-ran the results with your latest changes and posted the new numbers. https://ctf.open.collab.net/sf/go/wiki2118 I also turned on mod_deflate. I do not normally use it for the reason Ivan mentioned. I also changed MaxKeepAliveRequests from 64 to 5000 The numbers are a little better. There is on anomaly in the FolderTests where an update blew up from 2 seconds to over 10 minutes. I had this problem one other time when running with Serf. I am not sure what goes on when that happens. Maybe something similar happened with the initial checkout when it went from 20 minutes to 2 minutes? I am currently running the Neon tests again to while I have mod_deflate configured. -- Thanks Mark Phippard http://markphip.blogspot.com/
