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#sendfile

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Marcel Waldvogel

All you never wanted to know about creating fast socket I/O on #Linux. Unless you are a real geek.

A small, ultra-high performance publish-subscribe server doing kind of TCP #multicast using #sendfile, #io_uring, #splice, (mapped) files, and #fallocate for file hole punching.

Saturating a 10 Gbps link with useful data with just 8 cores.

A beautiful writeup for anyone into fast Linux networking. Not just for #ATproto

h/t @nohillside
#PubSub #Kernel #Hacking
asayers.com/jetrelay

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