On Sun, Nov 21, 2010 at 3:49 PM, Eric Wong <[email protected]> wrote: > Jeremy Evans <[email protected]> wrote: >> On Sat, Nov 20, 2010 at 8:05 PM, Eric Wong <[email protected]> wrote: >> > Michael Guterl <[email protected]> wrote: >> >> We've been using Unicorn 1.x very successfully for some time with a >> >> Rails 2.3 application. Would you recommend upgrading to Unicorn 3.x? >> > >> > Yes if you're running a recent Linux (>= 2.6.28), it might help somewhat >> > with performance (but may not be noticeable with a particular app). >> > I haven't done extensive benchmarking, but the reduction of syscalls >> > should help a bit, and newer versions will exploit some of that more. > <snip> >> > If you're willing to help iron out portability bugs to other kernels, >> > then please upgrade and report back :) >> >> Just an anecdotal data point here, using OpenBSD-current. Moving from >> Unicorn 1.0 to 2.0 sped up the scaffolding_extensions integration test >> suite by a factor of 3 (~10 seconds to ~3 seconds). I'm guessing this >> is due mainly to the use of kgio. Hoping to upgrade to Unicorn 3.0 >> today. > > Wow! I didn't expect that kind of performance improvement![1] What > is this test doing? I'm actually suspicious there could be a bug > somewhere in Unicorn or kgio causing wrong results :) > > Let us know how 3.0 goes, thanks! > > [1] - dalli reported 10-20%, which is closer to what I expected > (1-10%).
Looks like it must have been some other change that caused this speed up, as after testing again with 1.x, I'm getting about the same in terms of performance. Sorry for the misinformation. Jeremy _______________________________________________ Unicorn mailing list - [email protected] http://rubyforge.org/mailman/listinfo/mongrel-unicorn Do not quote signatures (like this one) or top post when replying
