linux-kernel - Re: sched: Avoid SMT siblings in select_idle

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Message-ID: <20120221145808.GC9289@linux.vnet.ibm.com>
Date:	Tue, 21 Feb 2012 20:28:08 +0530
From:	Srivatsa Vaddagiri <vatsa@...ux.vnet.ibm.com>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Mike Galbraith <efault@....de>,
	Suresh Siddha <suresh.b.siddha@...el.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...e.hu>, Paul Turner <pjt@...gle.com>
Subject: Re: sched: Avoid SMT siblings in select_idle_sibling() if possible

* Peter Zijlstra <peterz@...radead.org> [2012-02-21 11:37:23]:

> http://www.volano.com/benchmarks.html

For some reason, volanomark stops working (client hangs waiting for data
to arrive on socket) in 3rd iteration when run on latest tip. I don't see that 
with 2.6.32 based kernel though. Checking which commit may have caused
this ..

- vatsa

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