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Re: Advice on system purchase



Am Freitag, 2. November 2012 schrieb Martin Steigerwald:
> > > But I do believe that the kernel pings
> > > between 800 MHz and turbo mode not for nothing.
> >
> > 
> >
> > I have no idea what point you're making here.
> 
> "ondemand" scheduler tends to do it by give-me-everything-you-got or
> the- least-you-can-provide.
> 
> As I experience the Linux kernel is using that turbo mode quite a lot.
> So  something has to benefit from it. How noticable it is? I think it
> can be noticable with fast SSD and lots of RAM.
> 
> Thus I do think that it potentially gives the following benefits:
> 
> 1) faster execution / lower latency on peak loads
> 
> 2) less power consumption due to longer sleep periods.
> 
> 
> And thus I say, that I better use a dual core CPU with higher peak 
> performance for typical desktop workloads, than a quad core CPU with
> lower  peak performance. A quad core CPU with as high peak performance
> might be in order if something compiles software a lot.

peak performance per core that is obviously.

-- 
Martin 'Helios' Steigerwald - http://www.Lichtvoll.de
GPG: 03B0 0D6C 0040 0710 4AFA  B82F 991B EAAC A599 84C7


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