On 03/02/2018 09:55 AM, Vlastimil Babka wrote: > It's even stranger to me. Struct page is 64 bytes these days, exactly a > a cache line. Unless that changed, Intel CPUs prefetched a "buddy" cache > line (that forms an aligned 128 bytes block with the one we touch). I believe that was a behavior that was specific to the Pentium 4 "Netburst" era. I don't think the 128-byte line behavior exists on modern Intel cpus. -- 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>
