Finding a profiler that works, damnit
Finding a profiler that works, damnit
Posted Apr 4, 2010 12:35 UTC (Sun) by chantecode (subscriber, #54535)In reply to: Finding a profiler that works, damnit by foom
Parent article: KVM, QEMU, and kernel project management
We need to profile from NMI if we want to profile irqs as well. Otherwise a hardware pmu event would occur at the end of an irq disabled section, not at the exact place of the event, messing completely the result.