Messages in this thread | | | Date | Wed, 1 May 2002 19:37:11 -0700 | From | William Lee Irwin III <> | Subject | Re: Bug: Discontigmem virt_to_page() [Alpha,ARM,Mips64?] |
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On Thu, May 02, 2002 at 02:47:40AM +0200, Andrea Arcangeli wrote: > Oh yeah, you save 1 microsecond every 10 years of uptime by taking > advantage of the potentially coalesced cacheline between the last page > in a node and the first page of the next node. Before you can care about > this optimizations you should remove from x86 the pgdat loops that are > not needed with discontigmem disabled like in x86 (this has nothing to > do with discontigmem/nonlinear). That wouldn't be measurable too but at > least it would be more worthwhile.
Which ones did you have in mind? I did poke around this area a bit, and already have my eye on one...
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