From: Peter Zijlstra <a.p.zijlstra@chello.nl>
To: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Cc: mingo@elte.hu, pjt@google.com, efault@gmx.de, venki@google.com,
suresh.b.siddha@intel.com, linux-kernel@vger.kernel.org,
"Nikunj A. Dadhania" <nikunj@linux.vnet.ibm.com>
Subject: Re: sched: Performance of Trade workload running inside VM
Date: Wed, 15 Feb 2012 18:26:27 +0100 [thread overview]
Message-ID: <1329326787.2293.153.camel@twins> (raw)
In-Reply-To: <20120215171032.GB9918@linux.vnet.ibm.com>
On Wed, 2012-02-15 at 22:40 +0530, Srivatsa Vaddagiri wrote:
> Isn't it already broken in some respect, given that
> select_idle_sibling() could select a cpu which is different from
> wakeup
> source (thus forcing a task to run on a cpu different from wakeup
> source)?
select_idle_sibling() should keep it in the same cache domain, thereby
reducing pain and increasing parallelism.
prev parent reply other threads:[~2012-02-15 17:26 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-14 11:28 sched: Performance of Trade workload running inside VM Srivatsa Vaddagiri
2012-02-15 11:59 ` Peter Zijlstra
2012-02-15 17:10 ` Srivatsa Vaddagiri
2012-02-15 17:24 ` Peter Zijlstra
2012-02-15 17:38 ` Srivatsa Vaddagiri
2012-02-15 17:45 ` Peter Zijlstra
2012-02-15 17:56 ` Srivatsa Vaddagiri
2012-02-18 7:41 ` Srivatsa Vaddagiri
2012-02-20 14:56 ` Peter Zijlstra
2012-02-20 15:09 ` Srivatsa Vaddagiri
2012-02-15 17:26 ` Peter Zijlstra [this message]
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