JVM performance over time

Out of curiosity, I decided to run some quick (and non-repeated, largely unscientific) benchmarks of a Gentoo (-march=native,etc etc) OpenJDK/IcedTea build vs. actual Sun/Oracle JVM builds. Interestingly, the Gentoo builds are slower. Unsurprisingly, the JVM gets noticeably faster across versions from 1.6->1.7->1.8

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