I like to follow articles benchmarking OSs on phoronix a lot. Whenever Arch looks bad I see comments riddled with saying that is because the default scheduler sucks. I feel fairly compitent with Linux but for some reason schedulers seemed like this black box that lives in the realm of places where I normally break my OS from not paying close attention.
Is it a program run by something like systemd? Is it a config or patch of the kernel? Which ones are good and how important are they?
Anyways, any advice on schedulers would be appreciated.
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Keep in mind that there is, in general, a scheduler tradeoff between latency and throughput.
So, if you’re doing audio recording and mixing, this is likely to have very different scheduler requirements than something churning through batch jobs. The former wants low latency, the latter high throughput.