Messages in this thread | | | From | James Cleverdon <> | Subject | Re: [PATCH] NUMA-Q disable irqbalance | Date | Mon, 26 Aug 2002 18:23:55 -0700 |
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On Saturday 24 August 2002 05:19 am, Zwane Mwaikambo wrote: > On Tue, 13 Aug 2002, Linus Torvalds wrote: > > Well, it makes performance _so_ much better on a P4 that it's not even > > funny. It's basically a "P4 is unusable with SMP" without it. > > Out of interest, does anyone have an idea of what Windows does? > > Zwane
I'm not allowed to report second hand rumors from the folks who assisted with the debug of the x440 HAL, so I won't mention that they may or may not be using clustered logical interrupts and adjusting priority with the TPR.
I can admit that I have no clue how they assign IRQs to APIC clusters, whether randomly or if they try some load balancing scheme.
-- James Cleverdon IBM xSeries Linux Solutions {jamesclv(Unix, preferred), cleverdj(Notes)} at us dot ibm dot com
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