From: Dimitri Sivanich <sivanich@sgi.com>
To: Max Krasnyansky <maxk@qualcomm.com>
Cc: Gregory Haskins <ghaskins@novell.com>,
Peter Zijlstra <peterz@infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@elte.hu>
Subject: Re: RT sched: cpupri_vec lock contention with def_root_domain and no load balance
Date: Wed, 19 Nov 2008 13:55:17 -0600 [thread overview]
Message-ID: <20081119195517.GB662@sgi.com> (raw)
In-Reply-To: <49246DD0.3010509@qualcomm.com>
On Wed, Nov 19, 2008 at 11:49:36AM -0800, Max Krasnyansky wrote:
> I think the idea is that we want to make balancer a noop on those processors.
Ultimately, making the balancer a noop on processors with load balancing turned off would be the best solution.
> We could change cpusets code to create a root sched domain for each cpu I
> guess. But can we maybe scale cpupri some other way ?
It doesn't make sense to me that they'd have a root domain attached that spans more of the the system than that cpu.
>
> Max
next prev parent reply other threads:[~2008-11-19 19:55 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-03 21:07 RT sched: cpupri_vec lock contention with def_root_domain and no load balance Dimitri Sivanich
2008-11-03 22:33 ` Peter Zijlstra
2008-11-04 1:29 ` Dimitri Sivanich
2008-11-04 3:53 ` Gregory Haskins
2008-11-04 14:34 ` Gregory Haskins
2008-11-04 14:36 ` Peter Zijlstra
2008-11-04 14:40 ` Dimitri Sivanich
2008-11-04 14:59 ` Gregory Haskins
2008-11-19 19:49 ` Max Krasnyansky
2008-11-19 19:55 ` Dimitri Sivanich [this message]
2008-11-19 20:17 ` Max Krasnyansky
2008-11-19 20:21 ` Dimitri Sivanich
2008-11-19 20:25 ` Gregory Haskins
2008-11-19 20:33 ` Dimitri Sivanich
2008-11-19 21:30 ` Gregory Haskins
2008-11-19 21:47 ` Dimitri Sivanich
2008-11-19 22:25 ` Gregory Haskins
2008-11-20 2:12 ` Max Krasnyansky
2008-11-21 1:57 ` Gregory Haskins
2008-11-21 20:04 ` Max Krasnyansky
2008-11-21 21:18 ` Dimitri Sivanich
2008-11-22 7:03 ` Max Krasnyansky
2008-11-22 8:18 ` Li Zefan
2008-11-24 15:11 ` Dimitri Sivanich
2008-11-24 21:47 ` Max Krasnyansky
2008-11-24 21:46 ` Max Krasnyansky
2008-11-04 14:45 ` Dimitri Sivanich
2008-11-06 9:13 ` Nish Aravamudan
2008-11-06 13:32 ` Dimitri Sivanich
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