Messages in this thread | | | Subject | Re: PATCH 2.3.26: kmalloc GFP_ZERO | From | Jes Sorensen <> | Date | 09 Nov 1999 17:17:30 +0100 |
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>>>>> "yodaiken" == yodaiken <yodaiken@chelm.cs.nmt.edu> writes:
yodaiken> On Tue, Nov 09, 1999 at 03:07:12PM +0100, Jes Sorensen yodaiken> wrote: Mikulas> to do, it can clear free pages, and when GFP_ZERO request Mikulas> comes, it returns page directly without clearing overhead. >> Which I doubt is a win anyway, all you do is to sit there and >> thrash your cache in the background.
yodaiken> PPC turns cache off and zeros during idle task. This is a yodaiken> major performance win. We measured.
And Jakub just told us it wasn't a win under the same conditions on the Sparc64.
Jes
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