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[Xen-devel] performance of credit2 on hybrid workload

To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
From: David Xu <davidxu06@xxxxxxxxx>
Date: Mon, 23 May 2011 04:15:50 -0400
Cc: george.dunlap@xxxxxxxxxxxxx
Delivery-date: Mon, 23 May 2011 01:16:25 -0700
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List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Hi,

Xen4.1 datasheet tells that credit2 scheduler is designed for latency sensitive workloads. Does it have some improvement on the hybrid workload including both the cpu-bound and latency-sensitive i/o work? For example, if a VM runs a cpu-bound task burning the cpu and a i/o-bound (latency-sensitive) task simultaneously, will the latency be guaranteed? And how?

Regards,

Cong

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