Re: [PATCH RFC] ioctl based CAT interface
From: Marcelo Tosatti
Date: Mon Nov 16 2015 - 16:22:32 EST
On Mon, Nov 16, 2015 at 03:42:08PM +0100, Thomas Gleixner wrote:
> On Mon, 16 Nov 2015, Marcelo Tosatti wrote:
> > You need a task to be part of two cgroups at one time,
> > to support the following configuration:
> > Task-A: 70% of cache reserved exclusively (reservation-0).
> > 20% of cache reserved (reservation-1).
> > Task-B: 20% of cache reserved (reservation-1).
> Why would such a configuration be desired?
The HW supports cache sharing, its a HW feature.
Makes sense to share reserved cache between threads of an application
that for example share a library.
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