[Libvir] [PATCH][RFC] shows scheduler information
sakaia at jp.fujitsu.com
Thu Mar 29 12:16:05 UTC 2007
Thank you for your comments.
(The primary motivation is take a comments!)
I am wondering the libvirt policy about scheduer.
And I just know the Xen scheduler only.
Is any good idea to support this?
"Richard W.M. Jones" <rjones at redhat.com> wrote:
> Atsushi SAKAI wrote:
> > Hi,
> > This patch intends add a showing function of scheduler information.
> > If apply this patch to current revision 1.490
> > and type virsh dominfo 0
> > then shows following scheduler information.
> > Currently I assume credit scheduler only.
> > getting function is implemented but setting function is not yet.
> > I just waiting for comments.
> Is this part of the patch correct?
> diff -urpN libvirt.0329/src/driver.h libvirt.sched2/src/driver.h
> --- libvirt.0329/src/driver.h 2007-03-16 02:24:57.000000000 +0900
> +++ libvirt.sched2/src/driver.h 2007-03-29 19:48:04.000000000 +0900
> @@ -146,6 +146,12 @@ typedef int
> typedef int
> (*virDrvDomainSetAutostart) (virDomainPtr domain,
> int autostart);
> +typedef int
> + (*virDrvDomainGetSchedInfo) (virDomainPtr domain,
> + int *autostart);
> +typedef int
> + (*virDrvDomainSetSchedInfo) (virDomainPtr domain,
> + int autostart);
> typedef struct _virDriver virDriver;
> typedef virDriver *virDriverPtr;
> My more general comment would be how Xen-specific is this? What
> scheduler could be used by other drivers? (Obviously qemu just uses the
> Linux scheduler. However I don't know what kvm uses - whether it also
> schedules using the Linux scheduler, or some other method).
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