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November 25, 2021 5:27PM
Historically Cloudflare's core competency was operating an HTTP reverse proxy. We've spent significant effort optimizing traditional HTTP/1.1 and HTTP/2 servers running on top of TCP. Recently though, we started operating big scale stateful UDP services....
May 06, 2021 2:00PM
Is it ok to have if clauses that will basically never be run? Surely, there must be some performance cost to that......
December 18, 2020 12:00PM
Last year we deployed a CSAM image scanning tool. This is so cool! Image processing is always hard, and deploying a real image identification system at a Cloudflare scale is no small achievement! But we hit a problem - the matching algorithm was too slow for our needs....
June 18, 2020 12:56PM
My program received a SIGSEGV signal and crashed with "Segmentation Fault" message. Where does the "V" come from? Did I read it wrong? Was there a "Segmentation *V*ault?"? Or did Linux authors make a mistake? Shouldn't the signal be named SIGSEGF?...
April 06, 2020 12:00PM
We were wondering - can we just enable Linux "conntrack"? How does it actually work? I volunteered to help the team understand the dark corners of the Linux's "conntrack" stateful firewall subsystem....
