On 06/09/2015 08:34 AM, Dave Hansen wrote: > 2. We should measure flushing of ascending, adjacent virtual addresses > mapped with 4k pages since that is the normal case. Perhaps > vmalloc(16MB) or something. Now that I think about this a bit more, we really have two different patterns here: 1. flush_tlb_mm_range() style, which is contiguous virtual address flushing from an unmap-style operation. 2. Mel's new try_to_unmap_one() style, which are going to be relatively random virtual addresses. So, the "ascending adjacent" case is still interesting, but it wouldn't cover Mel's new case. -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>