Re: [Xen-devel][PV-ops][PATCH 0/2] VNIF: Using smart polling ins

To:	"Xu, Dongxiao" <dongxiao.xu@xxxxxxxxx>
Subject:	Re: [Xen-devel][PV-ops][PATCH 0/2] VNIF: Using smart polling instead of event notification.
From:	Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date:	Wed, 30 Sep 2009 17:21:55 -0700
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On 09/30/09 17:11, Xu, Dongxiao wrote:
> Send the patches in attachment. 
>
> 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.
>   

Thanks, applied.  I fixed up some whitespace issues; please run kernel
patches through scripts/checkpatch.pl before submission.

    J

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Re: [Xen-devel][PV-ops][PATCH 0/2] VNIF: Using smart polling instead of