 Home |
Products |
Support |
Community |
News |
xen-devel
Re: [Xen-devel] Poor network performance in domU in unstable
| To: | Jacob Gorm Hansen <jacobg@xxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Poor network performance in domU in unstable |
| From: | Jacob Gorm Hansen <jacobg@xxxxxxx> |
| Date: | Tue, 26 Apr 2005 16:07:21 -0700 |
| Cc: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
| Delivery-date: | Tue, 26 Apr 2005 23:07:31 +0000 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| In-reply-to: | <426EA4BD.6010004@xxxxxxx> |
| 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> |
| References: | <426EA4BD.6010004@xxxxxxx> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
| User-agent: | Mozilla Thunderbird 1.0 (X11/20050302) |
Jacob Gorm Hansen wrote: hi,with unstable as of April 21st, I am getting fairly bad networking performance in my domUs, e.g 125Mbits/s TCP with iPerf over a gigabit link, where dom0 gets around 700Mbits/s.This is with a non-debug build of Xen, with a bridged setup created with vmtools, and both with and without use of grant tables.If I run Xen with hyperthreading enabled, the figure improves somewhat, to 165Mbits/s in domU.Is anyone else seeing the same behaviour with unstable? Is there some magic switch I need to flip (that perhaps vmtools does not know about) to prevent domain I/O being throttled by Xen? This seems to have been a configuration issue, as instead of migrating my old .config files using the arch/xen/config/* files got domU back to normal performance. Thanks, Jacob _______________________________________________ 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] Poor network performance in domU in unstable, Jacob Gorm Hansen |
|---|---|
| Next by Date: | Re: [Xen-devel] [PATCH] xen,tools: pincpu use vcpu and cpumap_t, Lars Rasmusson |
| Previous by Thread: | Re: [Xen-devel] Poor network performance in domU in unstable, Jacob Gorm Hansen |
| Next by Thread: | [Xen-devel] Migration - Still Issues?, Jim Henderson |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
