Re: [Xen-devel] [BUG] unfairness in Xen's credit scheduler

[Wei Liu <liuw@xxxxxxxxx>]

close 16
thanks

This bug was reported independently and fixed by:

Author:     Nate Studer <nate.studer@xxxxxxxxxxxxxxx>
AuthorDate: Fri Nov 15 17:38:10 2013 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Nov 15 17:38:10 2013 +0100

    credit: Update other parameters when setting tslice_ms

    Add a utility function to update the rest of the timeslice
    accounting fields when updating the timeslice of the
    credit scheduler, so that capped CPUs behave correctly.

    Before this patch changing the timeslice to a value higher
    than the default would result in a domain not utilizing
    its full capacity and changing the timeslice to a value
    lower than the default would result in a domain exceeding
    its capacity.

    Signed-off-by: Nate Studer <nate.studer@xxxxxxxxxxxxxxx>
    Reviewed-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>
    Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>

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