[Libvir] Add scheduler patch?
Atsushi SAKAI
sakaia at jp.fujitsu.com
Tue Jun 5 11:38:23 UTC 2007
Hi, Daniel
Yes, Credit Scheduler just sets 2 parameter only.
Please see following code.
http://xen.begi.net/xen-unstable/S/1538.html#L701
Thanks
Atsushi SAKAI
Daniel Veillard <veillard at redhat.com> wrote:
> On Tue, Jun 05, 2007 at 07:42:31PM +0900, Atsushi SAKAI wrote:
> > Hi, Daniel
> >
> > Thank you for reviewing.
> >
> > About xenHypervisorSetSchedulerParameters() in case of credit scheduler.
> > I just set not changed parameter at first.
> > I guess no problem on this.
> > Any problem?
> >
> > + /* credit scheduler parameters
> > + * following values do not change the parameters
> > + */
> > + op_dom.u.getschedinfo.u.credit.weight = 0;
> > + op_dom.u.getschedinfo.u.credit.cap = (uint16_t)~0U;
>
> yes I have seen that, but I wonder what happens when only one parameter
> is not 0, does the hypercall set only that parameter ?
> That does no prevent pushing that first version but that something which
> should be double checked to avoid catastrophic behaviour on edge cases.
>
> Daniel
>
> --
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> Daniel Veillard | virtualization library http://libvirt.org/
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