From: Chris Wilson <chris@chris-wilson.co.uk>
To: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] tests/gem_ringfill: Exercise all rings
Date: Mon, 20 Feb 2012 22:45:40 +0000 [thread overview]
Message-ID: <e39f63$3pjiq3@fmsmga002.fm.intel.com> (raw)
In-Reply-To: <1329776520-10968-1-git-send-email-chris@chris-wilson.co.uk>
On Mon, 20 Feb 2012 22:22:00 +0000, Chris Wilson <chris@chris-wilson.co.uk> wrote:
> On SandyBridge, the BLT commands were split from the RENDER commands as
> well as the BSD split inherited from Ironlake. So we need to make sure
> we do exercise each ring, and in order to do so we also need to make
> sure each batch takes longer to execute than it takes for us to
> submit it.
Whilst this found the bug, it does presume the BLT and RENDER copy are
equally fast. So on a SNB without the autoreported head, it fails to
fill the BLT ring as the untiled RENDER copy is far too slow.
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2012-02-20 22:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <c55c5d18l92@AZSMGA002.ch.intel.com>
2012-02-20 22:22 ` [PATCH] tests/gem_ringfill: Exercise all rings Chris Wilson
2012-02-20 22:45 ` Chris Wilson [this message]
2012-02-20 22:53 ` Chris Wilson
2012-02-22 9:55 ` Daniel Vetter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='e39f63$3pjiq3@fmsmga002.fm.intel.com' \
--to=chris@chris-wilson.co.uk \
--cc=intel-gfx@lists.freedesktop.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.