 Home |
Products |
Support |
Community |
News |
xen-devel
Re: [Xen-devel] long latency of domain shutdown
| To: | Jan Beulich <jbeulich@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] long latency of domain shutdown |
| From: | Keir Fraser <keir.fraser@xxxxxxxxxxxxx> |
| Date: | Thu, 08 May 2008 11:12:12 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Thu, 08 May 2008 03:12:48 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxx |
| In-reply-to: | <4822EAE1.76E4.0078.0@xxxxxxxxxx> |
| 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/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe> |
| List-unsubscribe: | <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| Thread-index: | Aciw8/tROgsUoBznEd28OwAX8io7RQ== |
| Thread-topic: | [Xen-devel] long latency of domain shutdown |
| User-agent: | Microsoft-Entourage/11.4.0.080122 |
On 8/5/08 10:58, "Jan Beulich" <jbeulich@xxxxxxxxxx> wrote: > While looking at this I wondered whether there really is a way for > Xen heap pages to end up being guest page tables (or similarly > descriptor table ones)? I would think if that happened this would be > a bug (and perhaps a security issue). If it cannot happen, then the > RELMEM_* states could be simplified and > domain_relinquish_resources() shortened. You mean just force page-table type counts to zero, and drop main reference count by the same amount? Might work. Would need some thought. 8500 cycles per pte is pretty fantastic. I suppose a few atomic ops are involved. Are you running on an old P4? :-) -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | RE: [Xen-devel] [Patch 4/4]: Xend interface for HVM S3, Ke, Liping |
|---|---|
| Next by Date: | RE: [Xen-devel] [Patch 4/4]: Xend interface for HVM S3, Ian Jackson |
| Previous by Thread: | Re: [Xen-devel] long latency of domain shutdown, Jan Beulich |
| Next by Thread: | Re: [Xen-devel] long latency of domain shutdown, Jan Beulich |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
