4 ms·
because this is about PMU based sampling, which involves triggering interrupts at some interval and doing the sampling while handling the interrupt
by zznzz 4y ago
because this is about PMU based sampling, which involves triggering interrupts at some interval and doing the sampling while handling the interrupt
- titzer 4y agoOther than overhead, what is the advantage as opposed to handling the interrupt in the kernel and then delivering a signal to userspace? After all, isn't this the role of SIGPROF?