Date: Tue, 9 Nov 2010 23:03:48 -0800 From: Liontaur <liontaur@gmail.com> To: freebsd-questions@freebsd.org Subject: Re: Per core frequency control Message-ID: <AANLkTinyhLt%2BB%2BPbqYr9xW2b2PjG0J022ibrL-8PhmpW@mail.gmail.com> In-Reply-To: <AANLkTikBFoKBprozoi2%2BUyCPy9mqx094NJmWEgMtod-N@mail.gmail.com> References: <201011091256.51140.naylor.b.david@gmail.com> <4CD949D7.6030003@stillbilde.net> <AANLkTikBFoKBprozoi2%2BUyCPy9mqx094NJmWEgMtod-N@mail.gmail.com>
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On Tue, Nov 9, 2010 at 9:54 AM, David Brodbeck <gull@gull.us> wrote: > On Tue, Nov 9, 2010 at 5:17 AM, Svein Skogen (Listmail account) > <svein-listmail@stillbilde.net> wrote: > > You did read the "symmetric" part of "symmetric multi processor" didn't > you? > > > > It's a limitation of the technology. One clock. > > I don't think that's quite true. The newer Intel server chipsets have > the ability to throttle back idle cores and boost the speed of active > ones, to improve performance on single-threaded workloads. > AMD has similar technology on the Phenom's as well. I'm not sure how factually accurate the following link's assessment is but it's a good read either way. http://www.anandtech.com/show/3641/amd-divulges-phenom-ii-x6-secrets-turbo-core-enabled Mark
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