From: Andrea Arcangeli <aarcange@xxxxxxxxxx> Add config option. Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> Acked-by: Rik van Riel <riel@xxxxxxxxxx> Acked-by: Mel Gorman <mel@xxxxxxxxx> --- diff --git a/mm/Kconfig b/mm/Kconfig --- a/mm/Kconfig +++ b/mm/Kconfig @@ -283,3 +283,17 @@ config NOMMU_INITIAL_TRIM_EXCESS of 1 says that all excess pages should be trimmed. See Documentation/nommu-mmap.txt for more information. + +config TRANSPARENT_HUGEPAGE + bool "Transparent Hugepage support" if EMBEDDED + depends on X86_64 + default y + help + Transparent Hugepages allows the kernel to use huge pages and + huge tlb transparently to the applications whenever possible. + This feature can improve computing performance to certain + applications by speeding up page faults during memory + allocation, by reducing the number of tlb misses and by speeding + up the pagetable walking. + + If memory constrained on embedded, you may want to say N. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>