RE: [patch] prefer TSC over PM Timer

[Pallipadi, Venkatesh]

>-----Original Message-----
>From: Dmitry Torokhov [mailto:dmitry.torokhov@xxxxxxxxx] 
>Sent: Wednesday, November 17, 2004 6:20 AM
>To: dean gaudet
>Cc: Pallipadi, Venkatesh; john stultz; lkml
>Subject: Re: [patch] prefer TSC over PM Timer
>
>On Tue, 16 Nov 2004 17:50:42 -0800 (PST), dean gaudet
><dean-list-linux-kernel@xxxxxxxxxx> wrote:
>> on a tangent... has the local apic timer ever been 
>considered?  it's fixed
>> rate, and my measurements show it in the same performance 
>ballpark as TSC.
>> 
>
>At least Dell laptops will die horrible death if you enable lapic,
>probably others.
>

Hmm... And local APIC timer comes with its own set of problems 
http://bugme.osdl.org/show_bug.cgi?id=2560

While in C3, we don't get local APIC timer interrupts.

Thanks,
Venki
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