|
xen-devel
[Xen-devel] Re: TSC scaling and softtsc reprise, and PROPOSAL
|
To: |
Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>, "Zhang, Xiantao" <xiantao.zhang@xxxxxxxxx>, Ian Pratt <Ian.Pratt@xxxxxxxxxxxxx>, "Xen-Devel (E-mail)" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|
Subject: |
[Xen-devel] Re: TSC scaling and softtsc reprise, and PROPOSAL |
|
From: |
Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
|
Date: |
Tue, 28 Jul 2009 16:58:57 +0100 |
|
Cc: |
"Dong, Eddie" <eddie.dong@xxxxxxxxx>, John Levon <levon@xxxxxxxxxxxxxxxxx> |
|
Delivery-date: |
Tue, 28 Jul 2009 08:59:34 -0700 |
|
Envelope-to: |
www-data@xxxxxxxxxxxxxxxxxxx |
|
In-reply-to: |
<2bb603dd-500e-40ad-b62f-25ceaf522dd2@default> |
|
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> |
|
Sender: |
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
|
Thread-index: |
AcoPmq8x1LAS8RFfTAi9rj7QH4KP8AAAaEa8 |
|
Thread-topic: |
TSC scaling and softtsc reprise, and PROPOSAL |
|
User-agent: |
Microsoft-Entourage/12.20.0.090605 |
On 28/07/2009 16:46, "Dan Magenheimer" <dan.magenheimer@xxxxxxxxxx> wrote:
> Savvy system admins (who know every app in their
> data center and/or are willing to take the risk
> for better performance) should be able to easily
> disable softtsc though on all servers with a xen boot
> option, or on a per VM basis.
>
> We could quibble about details (maybe softtsc
> should only be automatically enabled on SMP guests
> or on 64-bit SMP guests or ?? ) but I suspect
> that just creates a mess and IMHO we should just
> bite the bullet.
I can live with that, if it is driven from the xend toolstack. It will have
to default off in the hypervisor for compatibility with old saved images.
-- Keir
_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel
|
| <Prev in Thread] |
Current Thread |
[Next in Thread>
|
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, (continued)
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, Dan Magenheimer
- [Xen-devel] Re: TSC scaling and softtsc reprise, and PROPOSAL, Keir Fraser
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, Dan Magenheimer
- [Xen-devel] Re: TSC scaling and softtsc reprise, and PROPOSAL, Keir Fraser
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, Dan Magenheimer
- [Xen-devel] Re: TSC scaling and softtsc reprise, and PROPOSAL, Keir Fraser
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, Zhang, Xiantao
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, Dan Magenheimer
- [Xen-devel] Re: TSC scaling and softtsc reprise, and PROPOSAL, Keir Fraser
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, Dan Magenheimer
- [Xen-devel] Re: TSC scaling and softtsc reprise, and PROPOSAL,
Keir Fraser <=
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, Dan Magenheimer
- [Xen-devel] Re: TSC scaling and softtsc reprise, and PROPOSAL, Keir Fraser
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, Dan Magenheimer
- [Xen-devel] Re: TSC scaling and softtsc reprise, and PROPOSAL, Keir Fraser
- [Xen-devel] RE: TSC scaling and softtsc reprise, and PROPOSAL, Zhang, Xiantao
|
|
|
Home