Re: [PATCHv3 2/2] powerpc: implement arch_scale_smt_power for Power7
From: Gabriel Paubert <hidden>
Date: 2010-01-29 12:43:19
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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