On Wednesday, March 9, 2005 3:23 pm, Andi Kleen wrote: > "Chen, Kenneth W" <[EMAIL PROTECTED]> writes: > > Just to clarify here, these data need to be taken at grain of salt. A > > high count in _spin_unlock_* functions do not automatically points to > > lock contention. It's one of the blind spot syndrome with timer based > > profile on ia64. There are some lock contentions in 2.6 kernel that > > we are staring at. Please do not misinterpret the number here. > > Why don't you use oprofileÂ>? It uses NMIs and can profile "inside" > interrupt disabled sections.
Oh, and there are other ways of doing interrupt off profiling by using the PMU. q-tools can do this I think. Jesse - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
