Re: Extreme system overhead on large IP27

[Karl-Johan Karlsson <creideiki+linux-mips@ferretporn.se>]

On Monday 23 October 2006 02:19, Ralf Baechle wrote:
> Can you test below patch which adds oprofile support for the R10000
> family processors?

I've tried it, and it doesn't solve my problem. With the patch 
applied, "opcontrol --list-events" seems correct, but I still get no data 
from OProfile, neither from the CYCLES nor the INSTRUCTIONS_GRADUATED 
event. /var/lib/oprofile/oprofiled.log just repeats:

   Nr. samples lost cpu buffer overflow: 0
   Nr. samples received: 0
   Nr. backtrace aborted: 0

I tried both on the full machine and on only the R12000 rack with identical 
results. The R12000 rack alone also has the original problem with large 
system overhead.

-- 
Karl-Johan Karlsson