1BRC, pure Node.js Final default: 3.930 seconds for one billion rows, five-run trimmed mean. A matched old/new comparison showed another 11% improvement: 6.116 s → 5.467 s under the same sustained ...
Notes from porting 1.12.2 overworld terrain to crates/worldgen. Names are MCP (stable_39) names from the decompile in ../mc-1.12.2-src/. Every entry under "Pitfalls" is reproduced in the port and ...