Maintained/released the GNU coreutils for the last 10 years
https://github.com/coreutils/coreutils/commits?author=pixelb
Designed/Built/Deployed Meta's backend operating system for the last 7 years
Designed/Built/Deployed Meta's backend operating system for the last 7 years
Sounds interesting, I had no idea Facebook had their own OS - presumably a Debian derivative?
Or is it just the kernel with a totally new/different userland from a normal “Linux” box?
We have faster iteration than upstream distros. More flexible. More tuned. I won't give exact details but 1% CPU gives extremely significant monetary savings, and there are at least 15% savings from static linking, PGO, LTO, more appropriate `-march`, more appropriate CPU security sharing considerations, ...
Billions of dollars per year, in essentially electricity and required systems savings (considering the scale of serving 3 billion users a day).
Also devs get access to the latest compilers, language levels, and libs, completely independent of distros, who have a more general compat issue to contend with. Considering there are about 30k tech in Meta this value also multiplys up.