Node.js dev builds 15.5M ops/sec S3-FIFO cache by hacking V8 internals

A developer created s3fifo, a Node.js cache library implementing the S3-FIFO eviction algorithm from a 2023 SOSP paper. It achieves 15.5 million operations per second using zero-GC flat arrays and slot recycling. The library outperforms traditional LRU caches by avoiding cache pollution from one-hit wonders.