S3-FIFO on Harvard Systems Grouphttps://systems.seas.harvard.edu/tags/s3-fifo/Recent content in S3-FIFO on Harvard Systems GroupHugoenCopyright © 2026 The President and Fellows of Harvard CollegeTue, 28 Jul 2026 11:00:00 -0400Why FIFO is (almost) all you need for cache evictionhttps://systems.seas.harvard.edu/blog/fifo-is-all-you-need/Tue, 28 Jul 2026 11:00:00 -0400https://systems.seas.harvard.edu/blog/fifo-is-all-you-need/<p>Cache eviction is usually presented as a ranking problem. LRU ranks objects by recency. LFU ranks them by frequency. More advanced algorithms combine several signals, adapt their parameters, and maintain increasingly sophisticated data structures to decide which object is least valuable.</p>