[26-devel] v2.6 performance slowdown on MPC8xx: Measuring TLB cache misses

Joakim Tjernlund Joakim.Tjernlund at lumentis.se
Sun Apr 24 03:35:24 EST 2005

> > Now, what is the best way to bring the performance back to v2.4 levels? 
> > 
> > For this "dd" test, which is dominated by "sys_read/sys_write", I thought 
> > of trying to bring the hotpath functions into the same pages, thus
> > decreasing the number of page translations required for such tasks.
> > 
> > Comments are appreciated
> Does CONFIG_PIN_TLB make a difference?
>  Jocke

Is it possible to handle the _PAGE_ACCESSED handling at pte creation in fault.c instead
of doing it for every TLB miss? That should make the TLB Miss handler faster.


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