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From: Jeremy Evans <jeremyevans0@gmail.com>
To: unicorn list <mongrel-unicorn@rubyforge.org>
Subject: Re: [ANN] unicorn 3.0.0 - disable rewindable input!
Date: Sun, 21 Nov 2010 08:29:24 -0800	[thread overview]
Message-ID: <AANLkTik-c4dJ82FzBNTvNWQtd-Z9-1==Wp_uLBdsPgoA@mail.gmail.com> (raw)
In-Reply-To: <20101121040544.GA11490@dcvr.yhbt.net>

On Sat, Nov 20, 2010 at 8:05 PM, Eric Wong <normalperson@yhbt.net> wrote:
> Michael Guterl <mguterl@gmail.com> 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.
>
> I don't expect (m)any regressions on recent Linux, and any will be found
> and fixed quickly (usually within 24-48 hours).
>
> If you're willing to help iron out portability bugs to other kernels,
> then please upgrade and report back :)
>
>
> On the other hand, if you're going to be losing a lot of
> money/users/lives in case of failure, stick to what works for you :)

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.

Jeremy
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  reply	other threads:[~2010-11-21 16:55 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-20  2:47 [ANN] unicorn 3.0.0 - disable rewindable input! Eric Wong
2010-11-20 17:50 ` Michael Guterl
2010-11-21  4:05   ` Eric Wong
2010-11-21 16:29     ` Jeremy Evans [this message]
2010-11-21 23:49       ` Eric Wong
2010-11-22  1:21         ` Jeremy Evans
2010-11-23 17:34     ` Michael Guterl

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