Cliff Click's Blog

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I wax poetic about Lattices and Type Theory, and their applications to Compilers and in particular Java JITs.

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Last week, if you recall, we were looking at the link between lattices and constant propragation. Lattices are how we describe the kinds of "constants" we can discover. Before we dive into extending our lattice into even more exciting forms, I want to talk about properties of the lattice directly. We need some properties or we're doomed - but there are some properties that we want that are less obvious.

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I've been wrestling with some tricky bugs and I'd thought I'd share the pain. For fun, I'm going to toss in evidence that All Your Existing Optimizing Compilers Are Broken.

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A tale of beautiful canyons and PLDI reviews...

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A notice to check out Gil Tene's post about tracking 'hiccups' on modern server stacks--like 'yes your app is stalling ... and here's how badly'.

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Martin Thompson is asking me questions about writing micro-benchmarks. I’m replaying some of that conversation here (with permission!).

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Between myself, Gil Tene (also of Azul Systems) and Martin Thompson.

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I've been finding waaaaay too many Generic Popular Frameworks (TM) that in fact write to final fields long after the constructor has flowed under the bridge...so I need to optimize final fields for people who "play by the rules", but Do The Expected Thing for those that don't.

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