One billion row challenge Original Challenge https://github.com/gunnarmorling/1brc Usage $ go build . $ ./obrc-golang > a.out $ diff -w a.out measurements-100000.out You should see nothing from the diff result. PC Specs CPU: AMD Ryzen 9 7950X Ram: 64GB SSD: Samsung SSD 990 PRO 2TB Results 1B row -> ~7.252s 100k row -> ~0.005s