Re: [patch-2.3.40-pre6] kzalloc() (ala kmem_zalloc() of SVR4)

From: Jamie Lokier (lkd@tantalophile.demon.co.uk)
Date: Mon Jan 24 2000 - 02:17:45 EST

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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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