Hi Will, On Fri, Jan 27, 2012 at 11:54 PM, Will Deacon <[email protected]> wrote: > Ok. Note that on ARM the PMU generates a standard IRQ (i.e. not an NMI) so > you may miss samples if they occur during critical kernel sections (and if > you look at a profile, spin_unlock_irqrestore will be quite high).
Also looks no any irq handler functions can be observed at a profile even though they may be run at a very high frequency. So could we configure ARM PMU interrupt as FIQ to address the above issues? thanks -- Ming Lei -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
