JRuby 0.9.8

Earlier this month, the JRuby team (headed up by Charles Nutter) released JRuby 0.9.8. See his post for notes on significant improvements on performance and language compliance. For us it was a seamless upgrade for the embedded JRuby engine in Photon.

Spring is in the Air

It’s finally spring and with the “extra hour” courtesy of the DST change you might think the entire Marketcetera team would be out “spring-snowboarding” at Squaw in Tahoe. Well, the snow is slushy, so let’s talk about “the other” Spring instead. Since version 0.2, we are using the Spring Framework to do IoC-based configuration of [...]

Java and the Computer Language Shootout

The Java VM is an impressive beast. In theory, features like dynamic optimization and compilation and concurrent garbage collection promise great performance gains. But in benchmarks at the Computer Language Shootout, performance numbers still appear to be lacking. The Computer Language Shootout is good research. Complete disclosure of methods (for maximum reproducibility), an adversarial method [...]

Open-source trading software? Are we insane?

The Black-Scholes formula is not a secret. If you don’t believe me, you can read the formula, the original paper, or a tutorial. You can even buy the t-shirt. (OK, I created that one to make a point). An algorithm to compute a price using the Black-Scholes formula is not even a secret. You can [...]

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