On Tue, Jun 19, 2018 at 05:17:45PM +0200, Paolo Bonzini wrote:
> On 16/06/2018 00:29, Michael S. Tsirkin wrote:
> >
> > +static QemuOptsList qemu_dedicated_opts = {
> > + .name = "dedicated",
> > + .head = QTAILQ_HEAD_INITIALIZER(qemu_dedicated_opts.head),
> > + .desc = {
> > + {
> > + .name = "mem-lock",
> > + .type = QEMU_OPT_BOOL,
> > + },
> > + {
> > + .name = "cpu-pm",
> > + .type = QEMU_OPT_BOOL,
> > + },
> > + { /* end of list */ }
> > + },
> > +};
> > +
>
> Let the bikeshedding begin!
>
> 1) Should we deprecate -realtime?
Can be a patch on top, by whoever cares.
> 2) Maybe -hostresource?
>
> Paolo
Is ability to cause high latency for other threads really a resource?
The issues in question:
1. a malicious guest can cause high latency for others sharing the host cpu.
2. to host scheduler cpu looks busier than it really is.
All are avoided if you use a dedicated host cpu, and 2 will
help scheduler get closer to giving you one.
--
MST
