4 ms·
> Does this CPU time accounting have any noticeable performance impact? Yes. > Select this option to enable fine granularity task irq time accounting. This is
by shakna 6y ago
> Does this CPU time accounting have any noticeable performance impact?
Yes.
> Select this option to enable fine granularity task irq time accounting. This is done by reading a timestamp on each transitions between softirq and hardirq state, so there can be a small performance impact.
[0] https://cateee.net/lkddb/web-lkddb/IRQ_TIME_ACCOUNTING.html https://cateee.net/lkddb/web-lkddb/IRQ_TIME_ACCOUNTING.html