Re: privilege levels and kernel mode

[bert hubert]

On Sun, Oct 15, 2006 at 08:17:16PM +0100, ranjith kumar wrote:

> memory reads, number of cache misses occured while
> running  a "C" program. For that I have to wright some
> values into "Model specific registers of pentium-4
> processor". But those registers can be written ONLY at
> privilege level of zero of pentium4 processor.

Look at 'perfmon' and 'perfctr', they give you what you want.


-- 
http://www.PowerDNS.com      Open source, database driven DNS Software 
http://netherlabs.nl              Open and Closed source services
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/