Moving Google toward the mainline

Re:Moving Google toward the mainline by yunohn on Tuesday October 05, 2021 @10:32PM (#28768494)

> Most of the world manages to run their binaries on a mainline kernel

Most of the world doesn’t need to worry about their kernel - this is a good thing. But at FAANG scale, you inevitably need to make changes and optimizations.

Eg: “Twitter has a kernel team!?” - https://danluu.com/in-house/

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Re:Moving Google toward the mainline by twtrgrunt on Wednesday October 06, 2021 @12:52AM (#28769337)

I thought the kernel was pretty stable. My first team at twitter I think we ran into 2 or 3 kernel bugs that year. I couldn't believe it but for some problems the blaming the kernel is a real debugging step (and even the bios lol). I think I had two perf problems turn into upstream patches thanks to the kernel team.

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Re:Moving Google toward the mainline by johannes1234321 on Wednesday October 06, 2021 @12:01PM (#28774704)

It's not only about bugs, but if you know your workload and your systems you can do some tricks a general purpose kernel can't do to tweak it for your needs and get a benefit here or there for your code.

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Re:Moving Google toward the mainline by pinerd3 on Wednesday October 06, 2021 @03:43AM (#28770293)

that was a very interesting article; thanks for posting it :)

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Re:Moving Google toward the mainline by yunohn on Wednesday October 06, 2021 @08:56AM (#28772556)

Np, I saw it on HN last week :)

Discussion: https://news.ycombinator.com/item?id=28691676

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