On Mon, 19 Nov 2012, Mel Gorman wrote: > I was not able to run a full sets of tests today as I was distracted so > all I have is a multi JVM comparison. I'll keep it shorter than average > > 3.7.0 3.7.0 > rc5-stats-v4r2 rc5-schednuma-v16r1 > TPut 1 101903.00 ( 0.00%) 77651.00 (-23.80%) > TPut 2 213825.00 ( 0.00%) 160285.00 (-25.04%) > TPut 3 307905.00 ( 0.00%) 237472.00 (-22.87%) > TPut 4 397046.00 ( 0.00%) 302814.00 (-23.73%) > TPut 5 477557.00 ( 0.00%) 364281.00 (-23.72%) > TPut 6 542973.00 ( 0.00%) 420810.00 (-22.50%) > TPut 7 540466.00 ( 0.00%) 448976.00 (-16.93%) > TPut 8 543226.00 ( 0.00%) 463568.00 (-14.66%) > TPut 9 513351.00 ( 0.00%) 468238.00 ( -8.79%) > TPut 10 484126.00 ( 0.00%) 457018.00 ( -5.60%) > TPut 11 467440.00 ( 0.00%) 457999.00 ( -2.02%) > TPut 12 430423.00 ( 0.00%) 447928.00 ( 4.07%) > TPut 13 445803.00 ( 0.00%) 434823.00 ( -2.46%) > TPut 14 427388.00 ( 0.00%) 430667.00 ( 0.77%) > TPut 15 437183.00 ( 0.00%) 423746.00 ( -3.07%) > TPut 16 423245.00 ( 0.00%) 416259.00 ( -1.65%) > TPut 17 417666.00 ( 0.00%) 407186.00 ( -2.51%) > TPut 18 413046.00 ( 0.00%) 398197.00 ( -3.59%) > > This version of the patches manages to cripple performance entirely. I > do not have a single JVM comparison available as the machine has been in > use during the day. I accept that it is very possible that the single > JVM figures are better. > I confirm that SPECjbb2005 1.07 -Xmx4g regresses in terms of throughput on my 16-way, 4 node system with 32GB of memory using 16 warehouses and 240 measurement seconds. I averaged the throughput for five runs on each kernel. Java(TM) SE Runtime Environment (build 1.6.0_06-b02) Java HotSpot(TM) 64-Bit Server VM (build 10.0-b22, mixed mode) Both kernels have CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y CONFIG_TRANSPARENT_HUGEPAGE=y CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y numa/core at 01aa90068b12 ("sched: Use the best-buddy 'ideal cpu' in balancing decisions") with CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y CONFIG_ARCH_WANTS_NUMA_GENERIC_PGPROT=y CONFIG_NUMA_BALANCING=y CONFIG_NUMA_BALANCING_HUGEPAGE=y CONFIG_ARCH_USES_NUMA_GENERIC_PGPROT=y CONFIG_ARCH_USES_NUMA_GENERIC_PGPROT_HUGEPAGE=y had a throughput of 128315.19 SPECjbb2005 bops. numa/core at ec05a2311c35 ("Merge branch 'sched/urgent' into sched/core") had an average throughput of 136918.34 SPECjbb2005 bops, which is a 6.3% regression. -- 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>