Subject: Re: [boost] [Endian] Performance
From: Adder (adder.thief_at_[hidden])
Date: 2011-09-05 23:22:31
If only you had GCC 4.4.3 instead of 4.4.0 for platform (A)... I think
it is that version that introduced __builtin_bswap32 and
You can see the results of some benchmarks performed on another
platform (including non-optimized code generated by GCC vs code that
uses the above-mentioned intrinsics) in the link that I gladly respam
Regarding the importance of performance: what applications do you have in mind ?
Loading a (portable) (binary) configuration file when the program is
launched and saving it back when the program is closed might not
require hand-written Assembler.
A personal firewall application that enthusiastic power use for their
Gigabit cable network and for their 300 Mbps wireless network might be
a different thing.
So is streaming OpenGL RGBA framebuffer data from the video game we
are working on to the MPEG4 encoder which expects reversely formatted
pixels in order to create a YouTube-uploadable demo. In such a case,
the performance of the byte swapper made a significant difference.
Thank you... (-:
-- Yours truly, Adder On 9/6/11, Phil Endecott <spam_from_boost_dev_at_[hidden]> wrote: > Dear All, > [...] > I've tested this on two systems: > (A): Marvell ARMv5TE ("Feroceon") @ 1.2 GHz, g++ 4.4 > (B): Freescale ARMv7 (i.MX53, Coretex A8) @ 1.0 GHz, g++ 4.6.1 > [...] > What do people see on other platforms? > [...] > How important do we consider performance to be for this library?
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