Re: Choosing the timer to use in benchmarking

On Wed, Aug 31, 2011 at 12:38 AM, Turgis, Frederic f-turgis@ti.com wrote:

Hi,

What was the timer used previously for benchmarks ?

It was a bit random across the different suites. CoreMark uses clock_gettime(CLOCK_REALTIME, ...) which is a wall clock with NTP adjustments. EEMBC uses clock() which is a lower resolution wall clock.

I was quite impressed with how steady the process clock was under different CPU loads. It doesn't seem to round up or down to a scheduler tick either which is nice.

-- Michael