On 03/15/2012 11:19 AM, Takuya Yoshikawa wrote: > We have PTE_LIST_EXT + 1 pointers in this structure and these 40/20 > bytes do not fit cache lines well. Furthermore some allocators may > use 64/32-byte objects for the pte_list_desc cache. > > This patch solves this problem by raising PTE_LIST_EXT to 7. > > Note: with EPT/NPT we almost always have a single spte in each reverse > mapping and nothing will be changed by this.
It might be better to drop it to 3. Without EPT/NPT, anonymous guest pages will have two mappings (a kernel mapping and a user mapping). Only file pages will have many mappings. -- error compiling committee.c: too many arguments to function -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
