[patch] New benchmark - vector division

[Don McCoy]

Here is a new benchmark for testing element-wise vector division.  Also 
attached are two performance graphs comparing multiplication and 
division - one shows mega flops per second and the other latency, or the 
number of microseconds per operation.

The graph showing flops per second is somewhat misleading for two 
reasons: both divide and multiply for real numbers are each counted as a 
"flop" even though they take a different number of clock cycles to 
perform.  Second, complex-complex division takes more operations (11, 
two of which are real-real divisions) than complex-complex 
multiplication (6).  This gives them a comparable flop count, even 
though the division takes roughly twice as long.

Regards,

-- 
Don McCoy
don (at) CodeSourcery
(888) 776-0262 / (650) 331-3385, x712
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