Re: [RFC][PATCH 4/7] sched: Replace sd_busy/nr_busy_cpus with sched_domain_shared

[Srikar Dronamraju]

> 
> Maybe even something like so; which would make Power <= 6 use the
> default topology and result in a shared LLC between the on package cores
> etc..
> 
> Power7 is then special for not having a shared L3 but having the
> asymmetric SMT thing and Power8 again gains the shared L3 while
> retaining the asymmetric SMT stuff.


Asymmetric SMT is only for Power 7. Its not enabled for Power 8.
On Power8, if there are only 2 active threads assume thread 0 and thread
4 running in smt 8 mode, it would internally run as if running in smt 2
mode without any scheduler tweaks. (This is unlike power 7).

-- 
Thanks and Regards
Srikar Dronamraju