On Mon, Apr 05, 2010 at 01:32:21PM -0700, Linus Torvalds wrote: > > > On Mon, 5 Apr 2010, Pekka Enberg wrote: > > > > AFAIK, most modern GCs split memory in young and old generation > > "zones" and _copy_ surviving objects from the former to the latter if > > their lifetime exceeds some threshold. The JVM keeps scanning the > > smaller young generation very aggressively which causes TLB pressure > > and scans the larger old generation less often. > > .. my only input to this is: numbers talk, bullsh*t walks. > > I'm not interested in micro-benchmarks, either. I can show infinite TLB > walk improvement in a microbenchmark. Ok, I'll bite. I should be able to get some database workloads with hugepages, transparent hugepages, and without any hugepages at all. -chris -- 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>