From: Ralf Baechle <ralf@linux-mips.org>
To: Alex Gonzalez <linux-mips@packetvision.com>
Cc: linux-mips@linux-mips.org
Subject: Re: Benchmarking RM9000
Date: Mon, 11 Jul 2005 00:14:19 +0100 [thread overview]
Message-ID: <20050710231419.GA28518@linux-mips.org> (raw)
In-Reply-To: <1120833749.28569.965.camel@euskadi.packetvision>
On Fri, Jul 08, 2005 at 03:42:29PM +0100, Alex Gonzalez wrote:
> The performance of our video application is well below our expectations.
> We are still doing some profiling work on it, but we are also looking at
> other possibilities.
>
> What other benchmarking tool would you recommend?
>
> Currently it's a NFS mounted system, but even if we could use a block
> device the access speed wouldn't be more than 1.5 Mbps, so that is a
> limitation for the benchmark.
As a shot into the dark ...
Make sure you exploit the RM9000's write-gathering capabilities when
writing into the frame buffer. If the frame buffer happens to be on
a PCI device you're probably performing uncached writes which will
slow down the thing to a crawl.
Ralf
next prev parent reply other threads:[~2005-07-11 7:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20050708091711Z8226352-3678+1954@linux-mips.org>
2005-07-08 12:02 ` CVS Update@linux-mips.org: linux Ralf Baechle
2005-07-08 12:12 ` Maciej W. Rozycki
2005-07-08 13:43 ` Richard Sandiford
2005-07-08 13:55 ` Ralf Baechle
2005-07-08 12:25 ` Benchmarking RM9000 Alex Gonzalez
2005-07-08 13:54 ` Laurence Darby
[not found] ` <20050708130131.GC2816@linux-mips.org>
2005-07-08 14:42 ` Alex Gonzalez
2005-07-10 23:14 ` Ralf Baechle [this message]
2005-07-11 15:43 ` Alex Gonzalez
2005-07-12 9:42 ` Ralf Rösch
2005-07-11 11:09 ` Laurence Darby
2005-07-11 11:55 ` Dominik 'Rathann' Mierzejewski
2005-07-08 14:35 Alex Gonzalez
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=20050710231419.GA28518@linux-mips.org \
--to=ralf@linux-mips.org \
--cc=linux-mips@linux-mips.org \
--cc=linux-mips@packetvision.com \
/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