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[Xen-devel] About the credit2 scheduler

  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: Jia Rao <rickenrao@xxxxxxxxx>
  • Date: Tue, 16 Feb 2010 14:23:39 -0500
  • Delivery-date: Tue, 16 Feb 2010 11:24:35 -0800
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
Hi All,

I am curious that how is the credit scheduler compared to the linux default CPU scheduler ?
They look quite similar. Do the problems in the credit scheduler also exist in Linux CPU scheduler?

What I understand is that, virtual machine monitors have a higher requirement in "fair sharing" than Linux. Therefore, we need credit-based scheduling which can possibly cause problems for latency sensitive workloads.

Thanks 
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