Re: [PATCH] add a clear_pages function to clear pages of higher order

From: Christoph Lameter <>
Date: 2005-03-25 05:41:06
On Thu, 24 Mar 2005, David Mosberger wrote:

> That's definitely the case.  See my earlier post on this topic:
> Unfortunately, nobody reported any results for larger machines and/or
> more interesting workloads, so the patch is in limbo at this time.
> Clearly, if the CPU that's clearing the page is likely to use that
> same page soon after, it'd be useful to use temporal stores.

So it would be useful to have

clear_page 	-> Temporal. Only zaps one page


clear_pages	-> Zaps arbitrary order of page non-temporal

Rework the clear_pages patch to do just that? Maybe rename clear_pages

prep_zero_page would use a temporal clear for an order 0 page but a
nontemporal clear for higher order pages.
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Received on Thu Mar 24 13:47:04 2005

This archive was generated by hypermail 2.1.8 : 2005-08-02 09:20:37 EST