From: "Styner, Douglas W" <douglas.w.styner@intel.com>
To: "Pallipadi, Venkatesh" <venkatesh.pallipadi@intel.com>,
       Chris Mason <chris.mason@oracle.com>
CC: Peter Zijlstra <a.p.zijlstra@chello.nl>,
       Andrew Morton <akpm@linux-foundation.org>,
       "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
       "Tripathi, Sharad C" <sharad.c.tripathi@intel.com>,
       "arjan@linux.intel.com" <arjan@linux.intel.com>,
       "Wilcox, Matthew R" <matthew.r.wilcox@intel.com>,
       "Kleen, Andi" <andi.kleen@intel.com>,
       "Siddha, Suresh B" <suresh.b.siddha@intel.com>,
       "Ma, Chinang" <chinang.ma@intel.com>,
       "Wang, Peter Xihong" <peter.xihong.wang@intel.com>,
       "Nueckel, Hubert" <hubert.nueckel@intel.com>,
       "Recalde, Luis F" <luis.f.recalde@intel.com>,
       "Nelson, Doug" <doug.nelson@intel.com>,
       "Cheng, Wu-sun" <wu-sun.cheng@intel.com>,
       "Prickett, Terry O" <terry.o.prickett@intel.com>,
       "Shunmuganathan, Rajalakshmi" <rajalakshmi.shunmuganathan@intel.com>,
       "Garg, Anil K" <anil.k.garg@intel.com>,
       "Chilukuri, Harita" <harita.chilukuri@intel.com>,
       Ingo Molnar <mingo@elte.hu>
Date: Wed, 29 Apr 2009 11:25:43 -0700
Subject: RE: Mainline kernel OLTP performance update
Thread-Topic: Mainline kernel OLTP performance update
Thread-Index: AcnI9cORFokQ9kziS36jObMSJzfcAAAAdIVw
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Pallipadi, Venkatesh writes:
>Output of
># grep . /sys/devices/system/cpu/cpu0/cpufreq/*
>can tell us whether P-state software coordination is the reason behind
>excessive resched IPIs. Look for ondemand being the current_governor and
>affected_cpus containing more than one CPU in it.

On these setups, we are disabling frequency scaling at the bios. 
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