On Mon, 2008-09-08 at 17:33 +0100, Mel Gorman wrote: > By default, libhugetlbfs will fall back to using base pages when huge pages > are not available. In some situations such as benchmarking this may not be > desirable as the user would be using base pages when they believed huge > pages were in use. This patch enables the user to specify that hugepages > must be used by setting the HUGETLB_STRICT environment variable.
Since there is no user at present that is asking for this feature, I think we should put it on hold. We may want to employ a more sophisticated fallback mechanism in the future (one that can take advantage of multiple huge page sizes). If we end up going that route, we may want a different environment variable (such as HUGETLB_FALLBACK_MODE) which could be set to allow fallback to other page sizes, allow no fallback, or allow fallback without trying other sizes. Regardless of how people feel about my cross-page-size fallback ideas, I don't feel that there is an immediate, pressing need for this feature right now. -- Adam Litke - (agl at us.ibm.com) IBM Linux Technology Center ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Libhugetlbfs-devel mailing list Libhugetlbfs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/libhugetlbfs-devel
