ppc44x - how do i optimize driver for tlb hits

Benjamin Herrenschmidt benh at kernel.crashing.org
Sat Sep 25 08:11:04 EST 2010

On Fri, 2010-09-24 at 08:08 -0500, Ayman El-Khashab wrote:
> I suppose another option is to to use the kernel profiling option I 
> always see but have never used.  Is that a viable option to figure out
> what is happening here?  

With perf and stochastic sampling ? If you sample fast enough... but
you'll mostly point to your routine I suppose... though it might tell
you statistically where in your code, which -might- help.


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