Bill Huey (hui) wrote: > > Good to know that. What did the output reveal ? > > What's your intended use again summarized ? futex contention ? I'll > read the first posting again. >
Earlier I used latency_trace and figured that there was read contention on mm->mmap_sem during call to _rt_down_read by java threads when I was running volanomark. That caused the slowdown of the rt kernel compared to non-rt kernel. The output from lock_stat confirm that mm->map_sem was indeed the most heavily contended lock. Tim - 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/
