Movim • Meta Optimizing /proc/interrupts Reading As It's Too Costly At Scale: 29% Speedup

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Meta Optimizing /proc/interrupts Reading As It's Too Costly At Scale: 29% Speedup

news.movim.eu / Phoronix • 31 March 2026

One of the latest Linux kernel optimizations being worked on by Meta's large kernel engineering team is making reading of /proc/interrupts less costly. Due to monitoring of their servers frequently reading /proc/interrupts, it's actually become a noticeable cost over time with their massive fleet of systems...