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by titzer 1219 days ago
Why is profiling done in the kernel for userspace stacks?
1 comments
zznzz 1219 days ago
because this is about PMU based sampling, which involves triggering interrupts at some interval and doing the sampling while handling the interrupt
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titzer 1218 days ago
Other 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?
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