[Beowulf] rhel page_size
h-bugge at online.no
Mon Jan 25 07:30:28 PST 2010
On Jan 22, 2010, at 21:14 , Michael Di Domenico wrote:
> Nope, haven't gotten that far yet. I seemed to recall (or atleast i
> thought i had) that i could easily change the page size during kernel
> compile. perhaps that was way back in the day or i'm just losing it.
> figured it'd be a quick easy test... guest not... :(
I used libhugetlbfs today with success, followed more or less this recipe: http://www.ibm.com/developerworks/systems/library/es-lop-leveragepages/
Huge malloc's could then take advantage of the huge page support on your CPU (2MB on x86_64) and you do not need any kernel/apps recompilation.
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