From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Subject: Re: [PATCH igt 1/3] igt/perf_pmu: Idle the GPU before
 starting to measure busyness
Date: Wed, 22 Nov 2017 20:12:54 +0000
Message-ID: <f4bd9a58-209f-8b48-af37-2b9f15071c82@linux.intel.com>
References: <20171122180523.27626-1-chris@chris-wilson.co.uk>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"; Format="flowed"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga01.intel.com (mga01.intel.com [192.55.52.88])
 by gabe.freedesktop.org (Postfix) with ESMTPS id A07106E6A9
 for <intel-gfx@lists.freedesktop.org>; Wed, 22 Nov 2017 20:12:56 +0000 (UTC)
In-Reply-To: <20171122180523.27626-1-chris@chris-wilson.co.uk>
Content-Language: en-GB
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: Chris Wilson <chris@chris-wilson.co.uk>, intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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