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In our first JIT episode , we discussed how we could, using copy-patch, easily create a JIT compiler for PostgreSQL, with a slight improvement in performance compared to the PostgreSQL interpreter.

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JIT: So you want to be faster than an interpreter on modern CPUs

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Since my previous blog entry about JIT compiler for PostgreSQL, sadly not much happened due to a lack of time, but still some things were done (biggest improvement was the port to ARM64, a few optimizations, implementing more opcodes…). But I am often asking myself how to really beat the interpreter… And on “modern”…