Java Performance Testing

    This article describes attempts to determine whether it is beneficial to upgrade from Java 7 to 8 from a purely performance view.  I also figure out which machines and OS's are best at the task.  So far all my Apple Mac machines seem to do BigInteger benchmarks faster.

Machine and Java Version Baseline

    The following table sets a baseline based on machine type and java version (6/7/8) - for single threaded performance

Single Threaded

OS	Machine	Java	bits	Benchmark time (sec)
Win8.1	i7 5820K 4.1Ghz	1.8.0_31	64	42
OSX 10.9.4	i7 4970 2.6Ghz	1.8.0_20	64	48
OSX 10.9.4	i7 4970 2.6Ghz	1.7.0_51	64	51
Win7	i7 4700MQ 2.4Ghz	1.7.0_55	64	53
Win7	i7 4700MQ 2.4Ghz	1.6.0_45	64	55
Win7	i7 4700MQ 2.4Ghz	1.8.0_20	64	56
Win7	i7 3610QM 2.6Ghz	1.8.0_20	64	58
Win7	i7 3610QM 2.6Ghz	1.7.0_45	64	63
OSX 10.10.0	i5 4260U 1.6Ghz	1.8.0_25	64	167
XP	P4 3Ghz	1.6.0_31	32	172

Multi Threaded