1:15 a.m.
Hi all,
I am working with libvirt and I am trying to set cpu affinity. Now I can always use
virsh vcpupin <domain_name> <vcpu> <pcpu>
to pin vcpus to pcpus. I want to do it using Python API. Now, there is function pinVcpu
which is supposed to do that. But this is not working. For example I gave
dom.pinVcpu(0,1)
but still my vcpu affinity is for all the pcpus. The function returns 0 (success).
Any idea what am I doing wrong?
Thanks.
~Peeyush Gupta
3:43 a.m.
Hi Peeyush,
If we want to pin vcpu1 of a domain to CPUs 3 and 4, we need to pass:
dom.pinVcpu(1, (False, False, False, True, True, False....[and so on, til
number of logical CPUs of host]))
Can you please check this?
Regards,
Saurabh Deochake
[NTT DATA]
On Fri, Jul 19, 2013 at 11:45 AM, Peeyush Gupta <gpeeyush(a)ymail.com> wrote:
Hi all,
I am working with libvirt and I am trying to set cpu affinity. Now I can
always use
virsh vcpupin <domain_name> <vcpu> <pcpu>
to pin vcpus to pcpus. I want to do it using Python API. Now, there is
function pinVcpu which is supposed to do that. But this is not working. For
example I gave
dom.pinVcpu(0,1)
but still my vcpu affinity is for all the pcpus. The function returns 0
(success).
Any idea what am I doing wrong?
Thanks.
~Peeyush Gupta
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libvirt-users mailing list
libvirt-users(a)redhat.com
https://www.redhat.com/mailman/listinfo/libvirt-users
3:57 a.m.
Hi Saurabh,
I checked that out and it's working. Looks like I wasn't able to understand how to
define cpumap. Anyways, thanks for your answer.
~Peeyush Gupta
________________________________
From: Saurabh Deochake <saurabh.d04(a)gmail.com>
To: Peeyush Gupta <gpeeyush(a)ymail.com>
Cc: "libvirt-users(a)redhat.com" <libvirt-users(a)redhat.com>
Sent: Saturday, 27 July 2013 2:13 PM
Subject: Re: [libvirt-users] pinVcpu not working
Hi Peeyush,
If we want to pin vcpu1 of a domain to CPUs 3 and 4, we need to pass:
dom.pinVcpu(1, (False, False, False, True, True, False....[and so on, til number of
logical CPUs of host]))
Can you please check this?
Regards,
Saurabh Deochake
[NTT DATA]
On Fri, Jul 19, 2013 at 11:45 AM, Peeyush Gupta <gpeeyush(a)ymail.com> wrote:
Hi all,
I am working with libvirt and I am trying to set cpu affinity. Now I can always use
virsh vcpupin <domain_name> <vcpu> <pcpu>
to pin vcpus to pcpus. I want to do it using Python API. Now, there is function pinVcpu
which is supposed to do that. But this is not working. For example I gave
dom.pinVcpu(0,1)
but still my vcpu affinity is for all the pcpus. The function returns 0 (success).
Any idea what am I doing wrong?
Thanks.
~Peeyush Gupta
_______________________________________________
libvirt-users mailing list
libvirt-users(a)redhat.com
https://www.redhat.com/mailman/listinfo/libvirt-users
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Saurabh Deochake