[NTLUG:Discuss] SMP -- How can you tell it works?

[J. Reeves Hall]

Pete. Koren wrote:

> Hi,
>
> I compiled kernel 2.2.11 for SMP with my dual Celeron based Abit BP6 and
> I noticed when I ran
>
>     # dmesg
>
> these lines:
>
>     mtrr: your CPUs had inconsistent fixed MTRR settings
>     mtrr: probably your BIOS does not setup all CPUs
>
> The kernel configuration documentation mentions that:
>
>     CONFIG_MTRR
>     ...
>       "Saying Y here also fixes a problem with buggy SMP BIOSes which
> only
>       set the MTRRs for the boot CPU and not the secondary CPUs. This
> can
>       lead to all sorts of problems."
>
> I have set
>
>     CONFIG_MTRR=y
>
> Do I have a problem or not?  How can I see which CPU runs which process?
>
> Thanks,
>
> Pete Koren

Run KDE's ktop program. It show per-CPU usage levels (not per-CPU
processes, but at least it shows that both CPU's are running).

-Reeves