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Re: rbtree for uvm_pagelookup()
On Mon, Jun 02, 2008 at 05:48:01PM +0200, Joerg Sonnenberger wrote:
> On Mon, Jun 02, 2008 at 03:20:31PM +0100, Andrew Doran wrote:
> > - On x86, don't bother using sse to copy/zero pages on demand. It turns out
> > not to be worth it.
> You mean that on demand copy/zero will use the caching modifying
> versions of the operations in contrast to the idle loop?
Yes. If copy/zero we already know that something is using the page. I tried
a variety of sse-using routines but none of them matched rep; movsl/stosl
in that case.
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