Bpftune uses BPF to auto-tune Linux systems

With this tool I am wary that I'll encounter system issues that are dramatically more difficult to diagnose and troubleshoot because I'll have drifted from a standard distro configuration. And in ways I'm unaware of. Is this a reasonable hesitation?

Two words: “feedback loop”.<p>That was the first idea that jumped in when thinking in what could go wrong, not because the Linux kernel, or BPF or this program, just for how it is intended to work. There might be no risk of that happening, there may be controls around that, or if they happen they might only converge to an estable state, but still it is something to have in the map.

This seems to step into control theory, which I think is somewhat underapplied in software engineering.

Fascinating!<p>I&#x27;d like to hear from people who are running this. Is it effective? Worth the setup time?

BTW one can use it out of the box with CachyOS.<p>After installation -&gt; CachyOS Hello -&gt; Apps&#x2F;Tweaks

&gt; bpftune is designed to be zero configuration; there are no options<p>On behalf of every junior administrator, overworked IT admin, and security-concerned &quot;cattle&quot; wrangler, thank you.<p>Having to learn a thousand+ knobs &amp; dials means most will never be touched. I for one welcome automated assistance in this area, even if the results are imperfect.

It&#x27;s great how it grew out of simple packet filtering into tracing and monitoring. It&#x27;s one of those great tools most should know. Been using it for years.

I wonder how effective this would be in multi-tenant environments like shared k8s clusters. On the one hand, each application running will have a different purpose and will move around between nodes over time, but on the other hand there are likely broad similarities between most applications.

Is tuning the TCP buffer size for instance worth it?

Interesting. But if tuning parameters to their best values were easy, shouldn&#x27;t the kernel just do that in the first place?

What is the magnitude of the effect size? The readme provides no information about what kind of results should be expected or might result.

As an insane Gentoo user, sign me the F*** up