11 Jan
2006
11 Jan
'06
8:14 a.m.
On Wed, Jan 11, 2006 at 12:12:30PM +0100, Jay Vaughan wrote:
Just write some code that does a bunch of float mutiplies on an array and
time them.
The maximum peak performance of a modern CPU is 1 or 2 cycles per
multiply, but in practice memory bandwidth throttles that. 10 might be
more typical at a rough guess.
Writing DSP code for integer platforms is extremly tedious, and I dont
think you will want to port any float code to an integer only platform.
Best to look for code that allready works in ints.
- Steve
How's its
float performance? Older ARMs have very bad/non-existant floating
point support.
i would wager that floating-point is not its forté, but rather than
give you an opinion, what would be got a good float-performance
benchmark that i can run on it to give you some real figures? is
there a preferred stdout-style C app i can run that'll give us some
real figures?