Ken Boak

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9 years, 10 months ago.

Whetstone speed test

In reply to Thomas Kirchner's speed test, I have tried the same code on a 72MHz STM32F303.

I'm using GCC and CooCox CoIDE

The 1000 iterations of the Whetstone benchmark took 41.4s.

However with maximum code optimisation this improves greatly to 16.4s.

I have also used a slightly different version of the Whetstone code and seen 30.6s and 15.4s with optimisation on.

Curiously, when I enabled the FPU, the benchmark ran slightly slower, 42.0s versus 41.4s.

I'd be interested to hear of anyone else who has tried similar.

Question relating to:

Last updated: 28 Apr 2014
Whetstone performance benchmark to compare the speed of my new Nucleo STM32 F401RE board to the Arduino. To summarize, while my Arduino Leonardo knockoff running at 16 Mhz runs through … benchmark, f401, Nucleo, performance, Speed, stm32

I also had a look at it once, and was seriously wondering with what accuracy the Arduino calculates it. The speed on the Arduino seems extremely fast to me for a device which has only simple 8-bit instructions.

posted by Erik - 10 Jun 2014
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