Date: Sat, 29 Sep 2007 19:19:08 +0200 From: Oliver Herold <oliver@akephalos.de> To: freebsd-questions@freebsd.org, Kris Kennaway <kris@freebsd.org> Subject: Re: Questions on the scheduler Message-ID: <20070929171908.GA1984@olymp.home> In-Reply-To: <499c70c0709291008y3d42adc4u68fa0f717088f94e@mail.gmail.com> References: <80f4f2b20709240723m121aad88ofaf728f384dd6c20@mail.gmail.com> <20070924184415.7bffd7d2@gumby.homeunix.com.> <46FE790A.1000101@FreeBSD.org> <20070929163116.GA1748@olymp.home> <46FE8120.4040608@FreeBSD.org> <499c70c0709291008y3d42adc4u68fa0f717088f94e@mail.gmail.com>
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OpenBSD isn't about performance, so it will be most of the time inferior. http://mail-index.netbsd.org/tech-kern/2007/09/28/0014.html Maybe this is of some help. But if compare it to Jeffs FreeBSD/Linux benches it looks rather strange to me. Cheers, Oliver On Sat, Sep 29, 2007 at 08:08:53PM +0300, Abdullah Ibn Hamad Al-Marri wrote: > On 9/29/07, Kris Kennaway <kris@freebsd.org> wrote: > > Oliver Herold wrote: > > > Are there any numbers or technical papers? Just out of curiosity. > > > > I ran a mysql benchmark against Dragonfly-current and FreeBSD 7 on an > > 8-core machine (one of the workloads that FreeBSD now performs very well > > at) and found 0 scaling on dragonfly. Their developers confirmed that > > the kernel is still entirely giant locked (as in FreeBSD 4) so no SMP > > performance benefits are possible. > > > > The email thread is here: > > > > http://leaf.dragonflybsd.org/mailarchive/users/2007-05/msg00134.html > > > > although the linked graph is offline. The FreeBSD curve was essentially > > this one (FreeBSD has improved further since then): > > > > http://people.freebsd.org/~kris/scaling/scaling.png > > > > with dragonfly a flat line at ~500 tps independent of load. > > > > Kris > > How does NetBSD, and OpenBSD scale when it comes to SMP comparing to > FreeBSD 7.0? > > > -- > Regards, > > -Abdullah Ibn Hamad Al-Marri > Arab Portal > http://www.WeArab.Net/ > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" -- Surprise due today. Also the rent.
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