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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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  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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