On (28/11/07 08:26), Arnd Bergmann didst pronounce: > On Wednesday 28 November 2007, Jon Tollefson wrote: > > This patch adds the hugepagesz boot-time parameter for ppc64 that lets > > you pick the size for your huge pages. The choices available are 64K > > and 16M. It defaults to 16M (previously the only choice) if nothing or > > an invalid choice is specified. Tested 64K huge pages with the > > libhugetlbfs 1.2 release with its 'make func' and 'make stress' test > > invocations. > > How hard would it be to add the 1MB page size that some CPUs support > as well? On systems with small physical memory like the PS3, that > sounds very useful to me. >
Does the PS3 support 1M pages in hardware? When I last looked, the magic ibm,segment-page-sizes file that described the supported pagesizes was missing from the device tree. In this situation, the default sizes become 4K and 16M because no other ones are advertised. -- Mel Gorman Part-time Phd Student Linux Technology Center University of Limerick IBM Dublin Software Lab _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
