Kimmo Hämäläinen wrote:
On Tue, 2006-03-14 at 19:49, ext Siarhei Siamashka wrote: ...
In any case, performance of memcpy/memset on default Nokia 770
image is far from optimal. And considering that the device is
certainly not overpowered, improvements in this area might probably
help. Just checked GTK sources, memcpy is used in a lot of places,
don't know whether it affects performance much though. Is it
something worth investigating by Nokia developers?
AFAIK, there are Nokians working for this, and your implementation
will most probably be considered, so your work has not gone to waste
:)
Well, as the implementations I have found (or was pointed to) so far are
all LGPL licensed and unsuitable for inclusion into Allegro library,
making a less restrictive implementation still makes sense :)
I'm glad to hear that Nokia is working on this. My goal was to bring
attention to this issue and my mission seems to be accomplished now :)
Or not quite so? Should I submit an issue report in bugzilla too?
And feel free to contact me if you think I can be of any use for you
while working on this issue. As a developer device program participant,
I would be glad to help and contribute something back to Nokia. I'm new
in development for ARM, but I have a lot of experience in x86 assembler
programming and performance optimizations.
In any case, I'll also keep developing multimedia variants (optimized
for more than 8-bit aligned data) as inline assembler macros for use in
the libraries such as Allegro and SDL.
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