From: Koen Kooi <koen@dominion.kabel.utwente.nl>
To: openembedded-devel@openembedded.org
Subject: Re: iwwmmxt optimization and soft float in OE on PXA270
Date: Mon, 03 Mar 2008 08:29:04 +0100 [thread overview]
Message-ID: <fqg9c0$g00$1@ger.gmane.org> (raw)
In-Reply-To: <1204494435.17068.23.camel@utx.utx.cz>
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Stanislav Brabec schreef:
| It should be the best possible optimization for PXA270 (compiled for
| iwmmxt, use soft float instead of exception based kernel driver, use -Os
| to make binaries as small as possible and add optimizations from -O3).
Angstrom already enables softfloat (for FPU-less systems) and -Os by
default *and* enables iwmmxt (if you have MACHINE_FEATURES = "iwmmxt")
for apps which have been proven to benefit from iwmmxt (e.g. mplayer).
I still get mysterious segfaults when running an all iwmmxt glibc system
(uclibc is even worse), so I don't think flipping the global switch is a
good idea.
regards,
Koen
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next prev parent reply other threads:[~2008-03-03 7:30 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-02 21:47 iwwmmxt optimization and soft float in OE on PXA270 Stanislav Brabec
2008-03-03 7:29 ` Koen Kooi [this message]
2008-03-03 10:48 ` Stanislav Brabec
2008-03-04 7:26 ` Khem Raj
2008-03-04 11:18 ` Stanislav Brabec
2008-03-04 20:32 ` Stanislav Brabec
2008-03-20 6:03 ` iwmmxt " Hasjim Williams
2008-03-20 12:46 ` Stanislav Brabec
2008-03-20 22:14 ` Hasjim Williams
2008-03-21 22:52 ` Khem Raj
2008-03-23 18:01 ` iwmmxt optimization on PXA270 (dejagnu test report) Stanislav Brabec
2008-03-26 1:39 ` Hasjim Williams
2008-04-01 0:27 ` Hasjim Williams
2008-04-01 3:21 ` Hasjim Williams
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