Re: [PATCH RFC] ioctl based CAT interface

Marcelo Tosatti
2015-11-13T17:43:34Z

On Fri, Nov 13, 2015 at 03:27:40PM -0200, Marcelo Tosatti wrote:
> On Fri, Nov 13, 2015 at 05:51:00PM +0100, Peter Zijlstra wrote:
> > On Fri, Nov 13, 2015 at 02:39:33PM -0200, Marcelo Tosatti wrote:
> > > + * * one tcrid entry can be in different locations
> > > + * in different sockets.
> >
> > NAK on that without cpuset integration.
> >
> > I do not want freely migratable tasks having radically different
> > performance profiles depending on which CPU they land.
>
> Please expand on what "cpuset integration" means, operationally.
> I hope it does not mean "i prefer cgroups as an interface",
> because that does not mean much to me.
>
> So you are saying this should be based on cgroups? Have you seen the
> cgroups proposal and the issues with it, that have been posted?

Subject: cat cgroup interface proposal (non hierarchical) was Re: [PATCH
V15 00/11] x86: Intel Cache
Allocation Technology Support