On Thu, Feb 27, 2014 at 01:28:22PM -0800, Linus Torvalds wrote: > (a) could you test this on a couple of different architectures? Here's data from 4-socket Westmere. The advantage of faultaround is not that obvious here. FAULT_AROUND_ORDER baseline 2 4 6 Linux build (make -j40) minor-faults 297,626,681 245,934,795 227,800,211 221,052,532 time, seconds 293.4322 291.4602 292.9198 295.2355 Linux rebuild (make -j40) minor-faults 5,903,936 3,802,148 3,018,728 2,735,602 time, seconds 41.5657 41.0301 40.7621 41.1161 Git test suite minor-faults 171,314,056 109,187,718 81,955,503 70,172,157 time, seconds 223.2327 220.2623 223.8355 231.7843 I don't have time to test on Haswell now. Probably later. -- Kirill A. Shutemov -- 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>