Re: [PATCH 2/2] powerpc: implement arch_scale_smt_power for Power7

Michael Neuling
2010-01-20T21:58:08Z

> > On Power7 processors running in SMT4 mode with 2, 3, or 4 idle threads
> > there is performance benefit to idling the higher numbered threads in
> > the core.
>
> So this is an actual performance improvement, not only power savings?

It's primarily a performance improvement. Any power/energy savings
would be a bonus.

Mikey