alt Hacker NewsI will confess to skimming by the end. But I don’t think they explained how they solved the cache issue except to say they rewrote the software in Rust, which is pretty vague.
Was all the code they rewrote originally in Lua? So was it just a matter of moving from a dynamic language with pointer-heavy data structures to a static language with value types and more control over memory layout? Or was there something else going on?
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zozbot234 • yesterday at 10:30 PM
The gains in lower memory footprint and lower demands on memory bandwidth from rewriting stuff to Rust are very real, and they're going to matter a lot with DRAM prices being up 5x or more. It doesn't surprise me at all that they would be getting these results.
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They posted about the Rust rewrite last year. https://blog.cloudflare.com/20-percent-internet-upgrade/