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Feb 5, 2022 at 06:22
Measuring Go program (GoAWK) performance from 1.2 to 1.18: https://benhoyt.com/writings/go-version-performance/ The Go 1.3 runtime led to a 2x speedup in GoAWK, and performance wins have continued since. It's easy to see popular PLs as largely finished, but the wins here show there's still opportunities.
Go performance from version 1.2 to 1.18
Shows how much the performance of Go has improved from version 1.2 through to 1.18 -- in its compiler, runtime, and libraries.

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Feb 7, 2022 at 00:58
Bytecode interpreters vs tree walkers, and beating GNU Awk performance in GoAWK:
Optimizing GoAWK with a bytecode compiler and virtual machine
How I sped up GoAWK by switching from a tree-walking interpreter to a bytecode compiler and virtual machine interpreter.