2.4.26 and MPC885 context switching time

[Schaefer-Hutter, Peter]

Hi all,

i'm evaluating IPC on the MPC885ADS and discovered
that the context switching times seem to be quite 
disappointing (up to 1ms). As we need to do a lot 
of IPC later on, i'm interested bringing the time 
down.

Therefore i wonder, if there are any known problems 
with the MMU on 8xx and 2.4.2x which might explain 
that? 

Or is this the expected context switching time for 
CPU @ 100 MHz (RAM @ 50 MHz)? Suggestions for a 
benchmark program?

Thanks!

  Peter