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• 09:47, 23 July 2023 Admin talk contribs created page Kernel tips and tricks (Created page with " == perf interrupt took too long in system log == phenomenon system log shows "perf interrupt took too long (aaa > bbb), lowering kernel.perf_event_max_sample_rate to ccc" Action Nothing to worry about. It has to do with the Linux perf tool which is included in the kernel. The kernel automagically determines the sample rate that could be used without impacting system performance too much; and it logs this even when perf isn't active, or even installed. Messages like...") Tag: Visual edit