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Re: [Xen-devel] burn_credits

  • To: George Dunlap <dunlapg@xxxxxxxxx>
  • From: Adel Amani <adel.amani66@xxxxxxxxx>
  • Date: Mon, 7 Oct 2013 05:05:36 -0700 (PDT)
  • Cc: Xen <xen-devel@xxxxxxxxxxxxx>
  • Delivery-date: Tue, 08 Oct 2013 19:22:46 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xen.org>

I want understand of logical how works formula credits? don't Experimental... !!!
Adel Amani
M.Sc. Candidate@Computer Engineering Department, University of Isfahan
Email: A.Amani@xxxxxxxxxxxx

> Hello
> Are someone know this formula in function "burn_credits"?
> "credits = (delta*CSCHED_CREDITS_PER_MSEC + MILLISECS(1)/2) / MILLISECS(1)"
> Why should "+ MILLISECS(1)/2) / MILLISECS(1)" ??

Did you try some example numbers with and without the
"+MILLESECS(1)/2" to see what effect it would have?


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