WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

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

To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>, "Tian, Kevin" <kevin.tian@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: "Wei, Gang" <gang.wei@xxxxxxxxx>
Date: Sat, 13 Dec 2008 23:27:37 +0800
Accept-language: en-US
Acceptlanguage: en-US
Cc:
Delivery-date: Sat, 13 Dec 2008 07:28:07 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <C5693605.20326%keir.fraser@xxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
References: <8FED46E8A9CA574792FC7AACAC38FE7701C7C994BB@xxxxxxxxxxxxxxxxxxxxxxxxxxxx> <C5693605.20326%keir.fraser@xxxxxxxxxxxxx>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AclWoeM2xc+X6mj6QOaQHsyxDmpzagAFRoNpAAEP6tAAAWmCgAAATdDsAAIJ5qAAAvL7GQFMKVOwAA1xISwAJTEgYAANxIuJAAtYh4A=
Thread-topic: [Xen-devel] Re: [PATCH] CPUIDLE: revise tsc-save/restore to avoid big tsc skew between cpus
On Saturday, December 13, 2008 5:51 PM, Keir Fraser wrote:
> By the way, c/s 18102 (subsequently reverted) may be interesting for you in
> implementing the TSC-and-no-platform-timer mode. I'm not sure how much of it
> will really be applicable, but it might be worth a look at least.

c/s 18102 looks like a incompleted patch which want to reintroduce TSC as the 
plt only when the tsc is always running & at a constant rate. I guess you still 
want it because TSC access has less cost, right? Anyway, it indeed has less to 
do with my current goal: handling the deepC-stop tsc which runs at constant 
rate.

Jimmy
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>