Chen, Kenneth W wrote on Wednesday, March 09, 2005 1:59 PM > > Did you generate a kernel profile? > > Top 40 kernel hot functions, percentage is normalized to kernel utilization. > > _spin_unlock_irqrestore 23.54% > _spin_unlock_irq 19.27% > .... > > Profile with spin lock inlined, so that it is easier to see functions > that has the lock contention, again top 40 hot functions:
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. - Ken - 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/
