Once upon a time, Linus would shout and yell about how the kernel should never "break" userspace (and I see in some places, some arguments of "It's not broken, it's just a performance regression" - personally I'd argue a 50% hit to performance of a pre-eminent database engine is ... quite the regression).
Now, the kernel engineer who introduced the brand new mechanism (introduced in Linux 7.0) for handling pre-emption says the "fix" is for Postgres to start using this new mechanism (I think the sister comment below links to what one of the Postgres engineers thinks of that, and I'm inclined mostly to agree).
Now, the kernel engineer who introduced the brand new mechanism (introduced in Linux 7.0) for handling pre-emption says the "fix" is for Postgres to start using this new mechanism (I think the sister comment below links to what one of the Postgres engineers thinks of that, and I'm inclined mostly to agree).