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Bpftune uses BPF to auto-tune Linux systems

(github.com)
256 points BSDobelix | 1 comments | 17 Nov 24 11:38 UTC | HN request time: 0s | source
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gausswho ◴[17 Nov 24 14:33 UTC] No.42164371[source]▶
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?
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pbhjpbhj ◴[17 Nov 24 14:54 UTC] No.42164481[source]▶
>"bpftune logs to syslog so /var/log/messages will contain details of any tuning carried out." (from OP GitHub readme)

The rmem example seems to allay fears that it will make changes one can't reverse.

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admax88qqq ◴[17 Nov 24 14:57 UTC] No.42164502[source]▶
It’s not a questions of being able to reverse. It’s a question of being able to diagnose that one of these changes even was the problem and if so which one.
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1. pbhjpbhj ◴[17 Nov 24 19:28 UTC] No.42166373[source]▶
I focused primarily on guesswho's "in ways I am unaware of".

Your issue appears to be true for any system change. Although, risk will of course vary.