Martin Thompson posts on what I call microbenchmarking and JVM magic, Biased Locking, OSR, and Benchmarking Fun. It is a good praticum to Cliff Click's What the heck is OSR and why is it Bad (or Good)?. OSR is the kind of JVM magic that both surprises and frightens, but makes perfect sense. I walked a colleague through OSR and he agreed with a shrug: the thing you are glad someone else wrote, excess hair.
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