[libvirt] question about rdma migration

[Roy Shterman]

Correct me if I'm wrong but locked option is pinning all VM memory in host
RAM,

for example if I have a VM with 4G memory, and I want to run some QEMU code
which needs to pin 500M,

I will need to lock all 4G in host memory instead of locking only 500M.

Any idea to solve my problem?

Regards,
Roy



On Mon, Mar 21, 2016 at 10:58 AM, Jiri Denemark <jdenemar at redhat.com> wrote:

> On Sat, Mar 19, 2016 at 14:53:45 +0200, Roy Shterman wrote:
> > Hi Jirka,
> >
> > Thanks for your answer, but I'm looking for a way to set RLIMIT_MEMLOCK
> > without locking all VM memory.
> > I'm wondering if there is a way to set RLIMIT_MEMLOCK without using the
> > methods you wrote above.
>
> No, libvirt doesn't provide any way to do this. But why would you even
> want to do that? RLIMIT_MEMLOCK is irrelevant when you don't lock the
> memory.
>
> Jirka
>
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