Re: [PATCHv3 2/2] powerpc: implement arch_scale_smt_power for Power7

Gabriel Paubert
2010-01-29T12:43:19Z

On Thu, Jan 28, 2010 at 05:20:55PM -0600, Joel Schopp wrote:
> 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.
>

Really 2, 3, or 4? When you have 4 idle threads out of 4, performance
becomes a minor concern, no? ;-)

Gabriel