From: Holger Freyther <holger+oe@freyther.de>
To: openembedded-devel@lists.openembedded.org
Subject: Re: [PATCH/RFC] qt4-embedded: tune QT_ARCH for armv6
Date: Fri, 05 Nov 2010 10:32:14 +0100 [thread overview]
Message-ID: <4CD3CF1E.4040804@freyther.de> (raw)
In-Reply-To: <4CD305FC.7070305@eukrea.com>
On 11/04/2010 08:14 PM, Eric Bénard wrote:
> Hi,
ill it be?
>>
> in the painting engine, from what I saw in the .h, the asm optimisations are
> only enabled when using ARM RCVT compiler and not when using gcc but I have
> not checked everywhere in the code so I'm not sure of this.
that is something else, I also have a partially applied C implementation that
appears to be faster than the brute force armv6 code.
One benefit of using armv6 is that the atomic code will use a different
implementation (ldrex,strex IIRC instead of swp). In any case please use
something like qttracereply to see if passing armv6 is giving any benefit at all.
next prev parent reply other threads:[~2010-11-05 9:33 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-04 9:52 [PATCH/RFC] qt4-embedded: tune QT_ARCH for armv6 Eric Bénard
2010-11-04 18:05 ` Khem Raj
2010-11-04 18:26 ` Holger Freyther
2010-11-04 19:14 ` Eric Bénard
2010-11-05 9:32 ` Holger Freyther [this message]
2010-11-05 9:42 ` Eric Bénard
2010-11-05 10:21 ` Holger Freyther
2010-11-05 10:41 ` Eric Bénard
2010-11-07 19:42 ` Eric Bénard
2010-11-04 20:27 ` Khem Raj
2010-11-04 21:05 ` Koen Kooi
2010-11-05 11:21 ` Phil Blundell
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=4CD3CF1E.4040804@freyther.de \
--to=holger+oe@freyther.de \
--cc=openembedded-devel@lists.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.