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Re: [suse-oracle] CPU utilization on system level

Sightler, Tom

2006-11-15

Replies:

On Wed, 2006-11-15 at 10:55 +0300, Andrew Edunov wrote:
> And for me this looks strange. Utilization on user level processes takes
> only 60% and kernel level utilization takes 40%. Is this normal? Or may be
> this is some kernel bug or something?

This looks to me like a system not setup with bigpages/hugepages and
possibly not using the recommended SHM settings either. Without these
settings the kernel will have a lot more work to do and will spend a lot
of "system" time just managing and allocating the small vma areas.

Later,
Tom


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