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From: Mike Galbraith <efault@gmx.de>
To: Peter Zijlstra <peterz@infradead.org>
Cc: Manfred Spraul <manfred@colorfullife.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
paulmck@linux.vnet.ibm.com, Nadia Derbey <Nadia.Derbey@bull.net>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: Scalability requirements for sysv ipc
Date: Wed, 26 Mar 2008 07:18:46 +0100 [thread overview]
Message-ID: <1206512326.21146.0.camel@marge.simson.net> (raw)
In-Reply-To: <1206461630.8514.441.camel@twins>
On Tue, 2008-03-25 at 17:13 +0100, Peter Zijlstra wrote:
> > ...and I verified it via :-/ echo 7 > sched_features in latest. That
> > only bought me roughly half though, so there's a part three in there
> > somewhere.
>
> Ouch, I guess hrtimers are just way expensive on some hardware...
It takes a large bite out of my P4 as well.
next prev parent reply other threads:[~2008-03-26 6:19 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-21 9:41 Scalability requirements for sysv ipc (was: ipc: store ipcs into IDRs) Manfred Spraul
2008-03-21 12:45 ` Nadia Derbey
2008-03-21 13:33 ` Scalability requirements for sysv ipc Manfred Spraul
2008-03-21 14:13 ` Paul E. McKenney
2008-03-21 16:08 ` Manfred Spraul
2008-03-22 5:43 ` Mike Galbraith
2008-03-22 10:10 ` Manfred Spraul
2008-03-22 11:53 ` Mike Galbraith
2008-03-22 14:22 ` Manfred Spraul
2008-03-22 19:08 ` Manfred Spraul
2008-03-25 15:50 ` Mike Galbraith
2008-03-25 16:13 ` Peter Zijlstra
2008-03-25 18:31 ` Mike Galbraith
2008-03-26 6:18 ` Mike Galbraith [this message]
2008-03-30 14:12 ` Scalability requirements for sysv ipc (+namespaces broken with SEM_UNDO) Manfred Spraul
2008-03-30 15:21 ` David Newall
2008-03-30 17:18 ` Mike Galbraith
2008-04-04 14:59 ` Nadia Derbey
2008-04-04 15:03 ` Nadia Derbey
2008-03-22 19:35 ` Scalability requirements for sysv ipc Mike Galbraith
2008-03-23 6:38 ` Manfred Spraul
2008-03-23 7:15 ` Mike Galbraith
2008-03-23 7:08 ` Mike Galbraith
2008-03-23 7:20 ` Mike Galbraith
2008-03-27 22:29 ` Bill Davidsen
2008-03-28 9:49 ` Manfred Spraul
2008-03-25 16:00 ` Nadia Derbey
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