Re: Proper kernel irq time accounting -v3

[Andi Kleen]

Venkatesh Pallipadi <venki@xxxxxxxxxx> writes:
>
> Solution to (1) involves adding extra timing on irq entry/exit to
> get the fine granularity info and then exporting it to user.

This means RDTSC right?

I am a bit concerned about overhead on systems with high TSC overhead.
Is there a way to turn this off at runtime for those?

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only.
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