Date: Fri, 13 Nov 2015 14:08:53 -0500
From: Luiz Capitulino <lcapitulino@redhat.com>
To: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        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
Message-ID: <20151113140853.79c2a539@redhat.com>
In-Reply-To: <20151113163933.GA10222@amt.cnet>
References: <20151113163933.GA10222@amt.cnet>
Organization: Red Hat
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On Fri, 13 Nov 2015 14:39:33 -0200
Marcelo Tosatti <mtosatti@redhat.com> wrote:

> Attached is an early version of the ioctl based CAT interface we
> have been working on.

We're also writing a user-space app that can manage reservations
from user-space. It's integrated with util-linux. I'll setup a repo
shortly to share the source code, but here are some examples:

Create a global 2MB reservation:

  # cacheset --create 2M

Create a 2MB reservation on CPUs 0 and 1:

  # cacheset --create 2M --cpu-list 0,1
  # cacheset --create 2M 0x3

Attach pid 4901 to reservation ID 1

  # cacheset --attach 4901 1

Detach pid 4901 to reservation ID 1

  # cacheset --detach 4901 1

Delete reservation ID 1

  # cacheset --delete 1
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