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
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