Messages in this thread | | | Date | Tue, 17 May 2016 16:22:04 +0530 | From | Srikar Dronamraju <> | Subject | Re: [RFC][PATCH 4/7] sched: Replace sd_busy/nr_busy_cpus with sched_domain_shared |
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> > 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
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