On Mon, 2010-06-07 at 18:36 +0200, Andi Kleen wrote: > Peter Zijlstra <a.p.zijlstra@xxxxxxxxx> writes: > > > This patch-set makes part of the mm a lot more preemptible. It converts > > i_mmap_lock and anon_vma->lock to mutexes and makes mmu_gather fully > > preemptible. > > How about performance measurements? mutexes still behave quite > differently from spinlocks, especially under contention. What's your favourite benchmark to stress i_mmap_mutex/anon_vma->lock? a cache-hot kernel build didn't really show a difference.. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
