[Cbe-oss-dev] PS3 performance analysis - errors on loading cellperfctr module

[Bob Nelson]

On Tuesday 11 December 2007 08:06:57 am Dimitar Lukarski wrote:
> 
> Hello,
> 
>     I am try to get some performance analysis on PS3 running under 
> Yellow Dog Linux 5.0 and IBM SDK 2.1.
>     I recompile the newest kernel 2.6.23 with oprofile modules. I also 
> installed cellperfctr-tools-2007.03.19-1.ppc64.rpm plus the modules. But 
> when I try to load it - it gives errors.
> 
>     Is it problem with my kernel compilation or just PS3 does not 
> support SPU sampling ?
> 

The PS3 does not have the necessary firmware support for SPU sampling.  I think some of the hardware necessary to support it is also disabled.

> 
> # modprobe cellperfctr
> FATAL: Error inserting cellperfctr 
> (/lib/modules/2.6.23custom/extra/cellperfctr.ko): Unknown symbol in 
> module, or unknown parameter (see dmesg)
> 
> 
> # dmesg | tail
> cellperfctr: Unknown symbol cbe_read_pm07_control
> cellperfctr: Unknown symbol cbe_read_pm
> cellperfctr: Unknown symbol cbe_write_pm07_control
> cellperfctr: Unknown symbol cbe_read_ctr
> cellperfctr: Unknown symbol cbe_read_trace_buffer
> cellperfctr: Unknown symbol rtas_call
> cellperfctr: Unknown symbol cbe_write_phys_ctr
> cellperfctr: Unknown symbol cbe_write_ctr
> cellperfctr: Unknown symbol cbe_write_pm
> cellperfctr: Unknown symbol rtas_token
> 
> 
>  best regards,
>        Dimitar Lukarski
> 
>