Awesome

1BRC solution with Singeli

Java version can be built & run with make run file=path/to/measurements.txt, or your favorite way of building & running Main.java+Gen.java (needs Java 21 & --add-modules=jdk.incubator.vector --enable-preview).

C version can be built with make a.out and then run with ./a.out [path/to/measurements.txt].

By default, the code is configured to use 8 threads. A different count can be chosen with a THREADS_1BRC=123 environment variable.

The repo comes with Gen.java and gen.c pre-generated, but they can be regenerated by adding GEN=1 to the make invocation of the desired target. This'll need:

• The path to the Singeli repo in SINGELI_PATH;
• bqn as CBQN.