[PATCH] PPC64 collect and export low-level cpu usage statistics

[Manish Ahuja]

Stephen Rothwell wrote:

>Why not PACA_START_TB and PACA_DELTA_TB?  Also, start_tb and delta_tb don't really
>store time base values, but PURR values.
>  
>

Stephen,

Thanks for the review. I will address all points or make appropriate 
changes where required.
Just a quick note before I head out for the day. I will send another 
detailed response a bit later.

On why these are called tb and not purr. I presume when i dropped the 
last patch, we weren't exhaustively
tracking anything else other than purr and Paul M suggested that I use 
"tb" instead of purr. I would personally
prefer purr as it makes reading the code easier as it suggests exactly 
what is being tracked.

I can try and change it back to purr if Paul M agrees to it.

Thanks,
Manish.