From: Andi Kleen <ak@suse.de>
To: Jeff Garzik <jeff@garzik.org>
Subject: Re: AMD64 X2 lost ticks on PM timer
Date: Sat, 4 Mar 2006 01:08:40 +0100
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Cc: "Bill Rugolsky Jr." <brugolsky@telemetry-investments.com>,
       Lee Revell <rlrevell@joe-job.com>, Jason Baron <jbaron@redhat.com>,
       linux-kernel@vger.kernel.org, john stultz <johnstul@us.ibm.com>,
       Ingo Molnar <mingo@elte.hu>
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On Saturday 04 March 2006 00:46, Jeff Garzik wrote:
>  More likely is a disabled interrupt period is longer than a
> tick period, or similar.

Then the ticks wouldn't be attributed to idle and softirq.
They are both special in that they do an unconditional local_irq_enable()
instead of the usual save/restore.

-Andi
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