From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chris Wilson Subject: Re: [PATCH] Revert "drm/i915: Kill GTT mappings when moving from GTT domain" Date: Wed, 15 Jun 2011 17:03:58 +0100 Message-ID: References: <1308094989-3153-1-git-send-email-eric@anholt.net> <87tybrcet0.fsf@eliezer.anholt.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by gabe.freedesktop.org (Postfix) with ESMTP id 2F3049E775 for ; Wed, 15 Jun 2011 09:04:14 -0700 (PDT) In-Reply-To: <87tybrcet0.fsf@eliezer.anholt.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Eric Anholt , intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Wed, 15 Jun 2011 08:08:59 -0700, Eric Anholt wrote: > On Wed, 15 Jun 2011 10:39:06 +0100, Chris Wilson wrote: > > For the record, on my SugarBay, this patch on top of drm-intel-fixes and > > mesa.git + your instruction streaming, regresses cairo-xlib 4.5s to 4.7s > > (4%, with a claim of .1% stddev) and improves cairo-gl from 21.5s to 20.1s > > (6.5%, with a claim of .5% stddev) for the firefox-talos-gfx. [This is a > > system that can do under 2s for cairo-xlib using vmap and the perf > > patches I posted before.] > > -Chris > > I was testing with semaphores enabled on the LLC series. I'm curious > how this revert could possibly regress cairo-xlib, though -- that seems > very strange. Moving back to LLC+semaphores (2.6.39-rc2+), firefox-talos-gfx: xlib: 4.473 gl: 20.753 applying the patch: xlib: 4.472 gl: 20.824 I'm just not reproducing the same issue you are seeing. Are you using a standard distro Kconfig, or if not, can you send me yours? -Chris -- Chris Wilson, Intel Open Source Technology Centre