From: Jerry <jerry@wicomtechnologies.com>
To: Matej Kupljen <matej.kupljen@ultra.si>
Cc: linux-mips@linux-mips.org
Subject: Re: Floating point performance
Date: Tue, 27 Sep 2005 11:42:08 +0300 [thread overview]
Message-ID: <77412291.20050927114208@wicomtechnologies.com> (raw)
In-Reply-To: <1127809027.26702.14.camel@localhost.localdomain>
>[In reply to "Floating point performance" from Matej Kupljen <matej.kupljen@ultra.si> to linux-mips@linux-mips.org <linux-mips@linux-mips.org> 27.09.2005 11:17]
> Hi
> I've built soft float toolchain (with crosstool) and then build
> MPlayer with it. The performance is very low. I cannot even
> As it seems, all the time is spent in the FP routines.
> I decided to use SF toolchain, because they should be faster
> then FPU emulator (at least it is on ARM), but did no test
> this with emulator.
Decoding of mp3 (and/or other media) with FP routines is extremely
slow on systems w/o fp processor. No matter is it "soft-float" or
"kernel-trap emulator". Both cases it is the emulator.(but SF is a
litthe faster because it has no "trap" overhead).
> Does anybody use MPlayer on MIPS?
> What performance do you get?
I used mplayed with libmad (libmad uses only integer ops to decode
mp3). It consumes about 10-15% of cpu time (au1200) to play mp3 file.
()_()
-( ^,^ )- -[21398845]- -<The Bat! 3.51.10>- -<27.09.2005 11:33>-
(") (")
next prev parent reply other threads:[~2005-09-27 8:44 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-27 8:17 Floating point performance Matej Kupljen
2005-09-27 8:42 ` Jerry [this message]
-- strict thread matches above, loose matches on Subject: below --
2005-09-29 7:08 Ulrich Eckhardt
2005-09-29 7:08 ` Ulrich Eckhardt
2005-09-29 11:16 ` Matej Kupljen
2005-09-29 11:36 ` Nigel Stephens
2005-09-29 11:44 ` Matej Kupljen
2005-09-29 11:49 ` Matej Kupljen
2005-09-29 13:31 ` Daniel Jacobowitz
2005-09-29 15:39 ` David Daney
2005-09-30 11:48 ` Dominik 'Rathann' Mierzejewski
2005-09-29 11:31 ` Greg Weeks
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=77412291.20050927114208@wicomtechnologies.com \
--to=jerry@wicomtechnologies.com \
--cc=linux-mips@linux-mips.org \
--cc=matej.kupljen@ultra.si \
/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.