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Re: [Xen-devel] Re: [PATCH] CPUIDLE: revise tsc-save/restore to avoid bi

To: "Wei, Gang" <gang.wei@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [PATCH] CPUIDLE: revise tsc-save/restore to avoid big tsc skew between cpus
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Mon, 15 Dec 2008 12:03:00 +0000
Cc: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
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Thread-topic: [Xen-devel] Re: [PATCH] CPUIDLE: revise tsc-save/restore to avoid big tsc skew between cpus
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On 15/12/2008 09:40, "Wei, Gang" <gang.wei@xxxxxxxxx> wrote:

> Redo the constant_tsc & tsc_nostop check part and post it again.
> 
> Jimmy
> 
> On Monday, December 15, 2008 11:07 AM, Wei, Gang wrote:
>> Here is the updated patch for constant-tsc case. -Jimmy

I applied the bits outside time.c. For time.c itself, how about the simpler
attached alternative? Does it work well? :-)

Notice I don't reset TSCs at all (except when !NOSTOP_TSC and after deep
sleep).

 -- Keir

Attachment: tsc-patch
Description: Binary data

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