From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Subject: Re: [PATCH] tests/gem_userptr_blits: Expanded userptr
 test cases
Date: Wed, 22 Jan 2014 11:38:08 +0000
Message-ID: <52DFADA0.50107@linux.intel.com>
References: <1390387298-6039-1-git-send-email-tvrtko.ursulin@linux.intel.com>
	<20140122112119.GE28361@nuc-i3427.alporthouse.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
Content-Transfer-Encoding: 7bit
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 ESMTP id CD98FFB88D
	for <Intel-gfx@lists.freedesktop.org>;
	Wed, 22 Jan 2014 03:38:09 -0800 (PST)
In-Reply-To: <20140122112119.GE28361@nuc-i3427.alporthouse.com>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
	<mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://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: <http://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
	<mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Sender: intel-gfx-bounces@lists.freedesktop.org
Errors-To: 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


On 01/22/2014 11:21 AM, Chris Wilson wrote:
> On Wed, Jan 22, 2014 at 10:41:38AM +0000, Tvrtko Ursulin wrote:
>> From: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
>>
>> A set of userptr test cases to support the new feature.
>
> Oh, and another thing...
>
> I guess we will want some benchmarks for mmu_notifier scaling since
> tracking the performance implications seems important.

What would be a realistic benchmark? My first thoughts were something like:

for each [unsync, sync]
   for each N [1, 10, 100, 1000]
	create N userptr bos
		benchmark for T seconds: malloc/realloc/free
		benchmark for T seconds: mmap/unmap
		???

Add this as tests/gem_userptr_benchmark ?

Tvrtko