Contents - Raspberry PI Community Projects

Reps Time(s) DGEFA DGESL OVERHEAD KFLOPS
----------------------------------------------------
16 0.56 89.29% 1.79% 8.93% 43084.967
32 1.13 91.15% 4.42% 4.42% 40691.358
64 2.25 89.78% 3.56% 6.67% 41853.968
128 4.51 87.80% 4.21% 7.98% 42358.233
256 9.01 88.68% 3.88% 7.44% 42155.076
512 18.01 89.23% 2.78% 8.00% 42434.923
Whetstone/Dhrystone
All code compiled with gcc options -float-abi=softfp -O3
Source
Code for these tests can be found here http://www.rowley.co.uk/arm/whet_dhry.zip. Or if
404 this code might be analogous http://freespace.virgin.net/roy.longbottom/benchnt.zip
Compile/Run
?
Results
Dhrystone
Microseconds for one run through Dhrystone: 1.2
Dhrystones per Second: 809061.5
Whetstone Crippled
Loops: 1000, Iterations: 10, Duration: 24 sec.
C Converted Double Precision Whetstones: 41.7 MIPS
Rebuilding the Whetstone test code with 'gcc -mfpu -float-abi=softfp' gives better results: