From: Peter Clifton <pcjc2@cam.ac.uk>
To: "intel-gfx@lists.freedesktop.org" <intel-gfx@lists.freedesktop.org>
Subject: Re: High-resolution intel_gpu_top output
Date: Sat, 30 Oct 2010 00:17:41 +0100 [thread overview]
Message-ID: <1288394261.1156.17.camel@pcjc2lap> (raw)
In-Reply-To: <1288393688.1156.15.camel@pcjc2lap>
On Sat, 2010-10-30 at 00:08 +0100, Peter Clifton wrote:
> It is pretty hard to make out, but I _think_ I'm seeing the GPU starved
> at certain points. It looks like the URB busy flag at 100% for these
> portions of the profile. I've highlighted them in RED as the bad stalls
> I'm worried about.
I misread my graphs... URB is the green portion very bottom trace.. it
is the RENDER CACHE which appears to stall things when it hits 100%
usage. I wish I had a better model of the hardware internals, and
exactly how these flags relate to it.
--
Peter Clifton
Electrical Engineering Division,
Engineering Department,
University of Cambridge,
9, JJ Thomson Avenue,
Cambridge
CB3 0FA
Tel: +44 (0)7729 980173 - (No signal in the lab!)
Tel: +44 (0)1223 748328 - (Shared lab phone, ask for me)
prev parent reply other threads:[~2010-10-29 23:17 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-10-29 17:31 High-resolution intel_gpu_top output Peter Clifton
[not found] ` <1288393688.1156.15.camel@pcjc2lap>
2010-10-29 23:17 ` Peter Clifton [this message]
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=1288394261.1156.17.camel@pcjc2lap \
--to=pcjc2@cam.ac.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox