> +config PAGE_LRU_SPLIT > + int "Memory lru lists per zone" > + default 4 if EXPERIMENTAL && SPARSEMEM_VMEMMAP > + default 1 > + help > + The number of lru lists in each memory zone for interleaving. > + Allows to redeuce lru_lock contention, but adds some overhead. > + Without SPARSEMEM_VMEMMAP might be costly. "1" means no split. Could you turn those two numbers into a boot option? Compile time parameters are nasty to use. I suppose it's ok to have an upper limit. > + > +config PAGE_LRU_INTERLEAVING > + int "Memory lru lists interleaving page-order" > + default 12 > + help > + Page order for lru lists interleaving. By default 12 (16Mb). > + Must be greater than huge-page order. > + With CONFIG_PAGE_LRU_SPLIT=1 has no effect. -Andi -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>