On 9 April 2013 13:18, Paul Sokolovsky <[email protected]> wrote:

> Well, I'm just trying to brainstorm how we can make CBuild/LAVA
> actually useful, not something which takes 10hrs just to finish with
> failure in >50% of cases. So, just common sense: benchmarking will
> still be affected, but at least builds won't be. Also, a gcc build takes
> ~10hrs, so there's much more chance for it to go into thermal issues
> than for a benchmark (don't remember exactly, but should be just
> 1-2hrs).

It sounds like something that should be solved in system software - do
you happen to know which cpufreq governor is being used? I know the
Panda ES seemed to be having problems with the ondemand governor. We
could try switching to the userspace cpufreq governor and
underclocking a bit (not very scientific) to see if that helps:

http://processors.wiki.ti.com/index.php/OMAP-L1_Linux_Drivers_Usage#Power_Management

I guess we wouldn't want to do any frequency scaling for benchmarks
but that doesn't seem to be an issue.

-- 
Will Newton
Toolchain Working Group, Linaro

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