Re: [RFC -v3 PATCH 2/3] sched: add yield_to function

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 01/04/2011 11:51 AM, Hillf Danton wrote:

Wouldn't that break for FIFO and RR tasks?

There's a reason all the scheduler folks wanted a
per-class yield_to_task function :)


Where is the yield_to callback in the patch for RT schedule class?
If @p is RT, what could you do?

If the user chooses to overcommit the CPU with realtime
tasks, the user cannot expect realtime response.

For realtime, I have not implemented the yield_to callback
at all because it would probably break realtime semantics
and I assume people will not overcommit the CPU with realtime
tasks anyway.

I could see running a few realtime guests on a system, with
the number of realtime VCPUs not exceeding the number of
physical CPUs.

--
All rights reversed
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux