On 10/15/2012 8:02 AM, Kent A. Reed wrote:
> Before I went on holiday I had followed in Charles' footsteps to build 
> preempt-rt kernels and test them on several Intel and AMD boards. The 
> latencies I got weren't very good (although not wildly out of line with 
> oasdl postings) and certainly not as good as Charles got with his 
> particular boards.
> 
> So far, I have been utterly unable to make any substantial difference 
> "tuning". Does a systematic tuning process exist? So far all I have is 
> the usual laundry list of "try this..." suggestions.

The only thing that has seemed to make a big difference for me was
disabling various power-saving features in the BIOS (ie: C-states and
similar).

I'm not sure if it matters, but all the systems I have tested with and
gotten decent results have at least 4 cores and at least 4G of ram (ie:
no swapping even with typical light desktop usage).

-- 
Charles Steinkuehler
char...@steinkuehler.net



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