From: Marcelo Tosatti <mtosatti@redhat.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>,
Luiz Capitulino <lcapitulino@redhat.com>,
Vikas Shivappa <vikas.shivappa@intel.com>,
Tejun Heo <tj@kernel.org>, Yu Fenghua <fenghua.yu@intel.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH RFC] ioctl based CAT interface
Date: Mon, 16 Nov 2015 17:52:19 -0200 [thread overview]
Message-ID: <20151116195219.GA317@amt.cnet> (raw)
In-Reply-To: <alpine.DEB.2.11.1511161541080.3761@nanos>
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?
>
> Thanks,
>
> tglx
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.
next prev parent reply other threads:[~2015-11-16 21:22 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-13 16:39 [PATCH RFC] ioctl based CAT interface Marcelo Tosatti
2015-11-13 16:51 ` Peter Zijlstra
2015-11-13 17:27 ` Marcelo Tosatti
2015-11-13 17:43 ` Marcelo Tosatti
2015-11-16 8:59 ` Peter Zijlstra
2015-11-16 13:03 ` Marcelo Tosatti
2015-11-16 14:42 ` Thomas Gleixner
2015-11-16 19:52 ` Marcelo Tosatti [this message]
2015-11-16 15:01 ` Peter Zijlstra
2015-11-16 19:54 ` Marcelo Tosatti
2015-11-16 21:22 ` Marcelo Tosatti
2015-11-13 19:04 ` Luiz Capitulino
2015-11-13 20:22 ` Marcelo Tosatti
2015-11-16 9:03 ` Peter Zijlstra
2015-11-13 17:33 ` Marcelo Tosatti
2015-11-16 9:07 ` Peter Zijlstra
2015-11-16 14:37 ` Marcelo Tosatti
2015-11-16 15:37 ` Peter Zijlstra
2015-11-16 16:18 ` Luiz Capitulino
2015-11-16 16:26 ` Peter Zijlstra
2015-11-16 16:48 ` Luiz Capitulino
2015-11-16 16:39 ` Marcelo Tosatti
2015-11-17 1:01 ` Marcelo Tosatti
2015-11-13 18:01 ` Marcelo Tosatti
2015-11-16 9:09 ` Peter Zijlstra
2015-11-13 19:08 ` Luiz Capitulino
2015-12-03 21:58 ` Pavel Machek
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