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Guest cbuchner1

Who says FSX does not use all the cores?

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I am running FSX on a Q6600, 2gig DDR800 RAM, 512MB Geforce 8800GT machine i just built and i have overclocked it to 3ghz (from 2.4ghz). I am getting anywhere from 13fps to 80fps with most things maxed out (traffic 50%, terrain resolution 1m, mesh 70%, no bloom or DX10 enabled).On my AISuite program (came with my ASUS motherboard) it shows the utlilisation rate of my 4 cores. I took the snap below while playing FS. All other programs i.e. anti virus etc. had been disabled. Looks to me like FSX uses the cores just fine.

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It uses all the cores, but the extras after the first are only used for one task (loading textures). This makes an important difference, but it's a long way short of making the best possible use of a multi-core environment.Tim

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Enable the "show kernel times" option of Task Manager and be scared how much time is lost in the kernel. For me it's 60-75% that is just spent in kernel overhead on the other processor cores.I seriously wonder what this is about. Busy loops in spinlocks maybe? Doh. A serious waste of electricity.

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