Re: [RFC PATCH 00/32] Nohz cpusets (was: Nohz Tasks)

Gilad Ben-Yossef
2011-08-31T14:05:10Z

> Guess I'll have to try creating a cpuset per cpu, and see how it
> compares to isolcpus.  cset shield --cpu 4-63 didn't work well enough.

Try adding:

# cset shield --kthread on

It will try to move non bound kernel threads to the system set from
the root set.

The results seems to vary from introducing system instability, via
doing nothing at all, all the way to actually achieving better
isolation, depending on the specific kernel threads you have running
and your kernel version. Sometime more then one of the results at the
same time. It's really like Russian roulette in a way, only way more
geekier...

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Gilad Ben-Yossef
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