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From: Luiz Capitulino <lcapitulino@redhat.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Fenghua Yu <fenghua.yu@intel.com>, H Peter Anvin <hpa@zytor.com>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	linux-kernel <linux-kernel@vger.kernel.org>, x86 <x86@kernel.org>,
	Vikas Shivappa <vikas.shivappa@linux.intel.com>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	tj@kernel.org, riel@redhat.com
Subject: Re: [PATCH V15 00/11] x86: Intel Cache Allocation Technology Support
Date: Wed, 4 Nov 2015 10:12:33 -0500	[thread overview]
Message-ID: <20151104101233.3cc79e15@redhat.com> (raw)
In-Reply-To: <alpine.DEB.2.11.1511041557050.4032@nanos>

On Wed, 4 Nov 2015 15:57:41 +0100 (CET)
Thomas Gleixner <tglx@linutronix.de> wrote:

> On Wed, 4 Nov 2015, Luiz Capitulino wrote:
> 
> > On Thu,  1 Oct 2015 23:09:34 -0700
> > Fenghua Yu <fenghua.yu@intel.com> wrote:
> > 
> > > This series has some preparatory patches and Intel cache allocation
> > > support.
> > 
> > Ping? What's the status of this series?
> 
> We still need to agree on the user space interface which is the
> hardest part of it....

My understanding is that two interfaces have been proposed: the cgroups
one and an API based on syscalls or ioctls.

Are those proposals mutual exclusive? What about having the cgroups one
merged IFF it's useful, and having the syscall API later if really
needed?

I don't want to make the wrong decision, but the cgroups interface is
here. Holding it while we discuss a perfect interface that doesn't
even exist will just do a bad service for users.

  reply	other threads:[~2015-11-04 15:12 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-02  6:09 [PATCH V15 00/11] x86: Intel Cache Allocation Technology Support Fenghua Yu
2015-10-02  6:09 ` [PATCH V15 01/11] x86/intel_cqm: Modify hot cpu notification handling Fenghua Yu
2015-10-02  6:09 ` [PATCH V15 02/11] x86/intel_rapl: " Fenghua Yu
2015-10-02  6:09 ` [PATCH V15 03/11] x86/intel_rdt: Cache Allocation documentation Fenghua Yu
2015-10-02  6:09 ` [PATCH V15 04/11] x86/intel_rdt: Add support for Cache Allocation detection Fenghua Yu
2015-11-04 14:51   ` Luiz Capitulino
2015-10-02  6:09 ` [PATCH V15 05/11] x86/intel_rdt: Add Class of service management Fenghua Yu
2015-11-04 14:55   ` Luiz Capitulino
2015-10-02  6:09 ` [PATCH V15 06/11] x86/intel_rdt: Add L3 cache capacity bitmask management Fenghua Yu
2015-10-02  6:09 ` [PATCH V15 07/11] x86/intel_rdt: Implement scheduling support for Intel RDT Fenghua Yu
2015-10-02  6:09 ` [PATCH V15 08/11] x86/intel_rdt: Hot cpu support for Cache Allocation Fenghua Yu
2015-10-02  6:09 ` [PATCH V15 09/11] x86/intel_rdt: Intel haswell Cache Allocation enumeration Fenghua Yu
2015-10-02  6:09 ` [PATCH V15 10/11] x86,cgroup/intel_rdt : Add intel_rdt cgroup documentation Fenghua Yu
2015-10-02  6:09 ` [PATCH V15 11/11] x86,cgroup/intel_rdt : Add a cgroup interface to manage Intel cache allocation Fenghua Yu
2015-11-18 20:58   ` Marcelo Tosatti
2015-11-18 21:27   ` Marcelo Tosatti
2015-12-16 22:00     ` Yu, Fenghua
2015-11-18 22:15   ` Marcelo Tosatti
2015-12-14 22:58     ` Yu, Fenghua
2015-10-11 19:50 ` [PATCH V15 00/11] x86: Intel Cache Allocation Technology Support Thomas Gleixner
2015-10-12 18:52   ` Yu, Fenghua
2015-10-12 19:58     ` Thomas Gleixner
2015-10-13 22:40     ` Marcelo Tosatti
2015-10-15 11:37       ` Peter Zijlstra
2015-10-16  0:17         ` Marcelo Tosatti
2015-10-16  9:44           ` Peter Zijlstra
2015-10-16 20:24             ` Marcelo Tosatti
2015-10-19 23:49               ` Marcelo Tosatti
2015-10-13 21:31   ` Marcelo Tosatti
2015-10-15 11:36     ` Peter Zijlstra
2015-10-16  2:28       ` Marcelo Tosatti
2015-10-16  9:50         ` Peter Zijlstra
2015-10-26 20:02           ` Marcelo Tosatti
2015-11-02 22:20           ` cat cgroup interface proposal (non hierarchical) was " Marcelo Tosatti
2015-11-04 14:42 ` Luiz Capitulino
2015-11-04 14:57   ` Thomas Gleixner
2015-11-04 15:12     ` Luiz Capitulino [this message]
2015-11-04 15:28       ` Thomas Gleixner
2015-11-04 15:35         ` Luiz Capitulino
2015-11-04 15:50           ` Thomas Gleixner
2015-11-05  2:19 ` [PATCH 1/2] x86/intel_rdt,intel_cqm: Remove build dependency of RDT code on CQM code David Carrillo-Cisneros
2015-11-05  2:19   ` [PATCH 2/2] x86/intel_rdt: Fix bug in initialization, locks and write cbm mask David Carrillo-Cisneros

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