Messages in this thread | | | Date | Mon, 24 Jan 2000 08:17:45 +0100 | From | Jamie Lokier <> | Subject | Re: [patch-2.3.40-pre6] kzalloc() (ala kmem_zalloc() of SVR4) |
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Alan Cox wrote: > > And on a multiprocessor system one idle processor can zero pages while > > the other is consuming them. > > Nice theory but the CPU->CPU traffic will kill you
I guess it's an open question, whether the CPU->CPU or memory->CPU traffic on the busy processor takes longer than the local zeroing followed by eventual CPU->memory flush of the unused portions of the zero page.
-- Jamie
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