On 01/13/2016 03:35 PM, Andy Lutomirski wrote: > Can anyone here ask a hardware or microcode person what's going on > with CR3 writes possibly being faster than INVPCID? Is there some > trick to it? I just went and measured it myself this morning. "INVPCID Type 3" (all contexts no global) on a Skylake system was 15% slower than a CR3 write. Is that in the same ballpark from what you've observed? -- 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>