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>
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
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
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (Darwin)
iD8DBQFHy6jAMkyGM64RGpERAsGmAKCQBrKr7a0LdUqRStpIDORkk+qS9wCgmmQv
ymohRaCAWpT3vX88U2/vSaI=
=83mT
-----END PGP SIGNATURE-----
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
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='fqg9c0$g00$1@ger.gmane.org' \
--to=koen@dominion.kabel.utwente.nl \
--cc=openembedded-devel@lists.openembedded.org \
--cc=openembedded-devel@openembedded.org \
/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.