On Mon, Apr 05, 2010 at 07:23:44PM -0700, Linus Torvalds wrote: > > > On Mon, 5 Apr 2010, Linus Torvalds wrote: > > > > So I thought it was a more interesting load than it was. The > > virtualization "TLB miss is expensive" load I can't find it in myself to > > care about. "Get a better CPU" is my answer to that one, > > [ Btw, I do realize that "better CPU" in this case may be "future CPU". I > just think that this is where better TLB's and using ASID's etc is > likely to be a much bigger deal than adding VM complexity. Kind of the > same way I think HIGHMEM was ultimately a failure, and the 4G:4G split > was an atrocity that should have been killed ] It's an interesting route to go down. With more and more virtualization, we start to think about HV platforms as more legitimate targets for large scale optimizations like this. On the other hand, hardware memory virtualization is still quite young on x86 CPUs and there are still hardware improvements down the line. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>