 Home |
Products |
Support |
Community |
News |
xen-devel
[Xen-devel][PV-ops][PATCH 0/2] VNIF: Using smart polling instead of even
| To: | "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel][PV-ops][PATCH 0/2] VNIF: Using smart polling instead of event notification. |
| From: | "Xu, Dongxiao" <dongxiao.xu@xxxxxxxxx> |
| Date: | Wed, 30 Sep 2009 15:21:42 +0800 |
| Accept-language: | en-US |
| Acceptlanguage: | en-US |
| Delivery-date: | Wed, 30 Sep 2009 00:22:36 -0700 |
| Envelope-to: | www-data@xxxxxxxxxxxxxxxxxxx |
| 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: | AcpBnqh8Tgp1dOzyQlOW4zT0n5YPMw== |
| Thread-topic: | [Xen-devel][PV-ops][PATCH 0/2] VNIF: Using smart polling instead of event notification. |
One of the VNIF driver's scalability issues is the high event channel frequency. It's highly related to physical NIC's interrupt frequency in dom0, which could be 20K HZ in some situation. The high frequency event channel notification makes the guest and dom0 CPU utilization at a high value, especially in multi-VM cases. The following two patches uses smart polling mechanism to replace event notification to reduce the CPU Utilization. Signed-off-by: Dongxiao Xu <dongxiao.xu@xxxxxxxxx> Best Regards, -- Dongxiao _______________________________________________ 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] RE: Biweekly VMX status report. Xen: #20255 & Xen0:#b6ba0..., Keir Fraser |
|---|---|
| Next by Date: | [Xen-devel][PV-ops][PATCH 2/2] VNIF(netfront): Using smart polling instead of event notification., Xu, Dongxiao |
| Previous by Thread: | [Xen-devel] Xend doesn't allow domain creation with multiple empty CD-ROM devices, John |
| Next by Thread: | Re: [Xen-devel][PV-ops][PATCH 0/2] VNIF: Using smart polling instead of event notification., Keir Fraser |
| Indexes: | [Date] [Thread] [Top] [All Lists] |
