On Thu, 3 Jun 2010, Peter Zijlstra wrote: > > And that can reduce the runtime of the thread holding a writelock on > > mm->mmap_sem, making the exit actually take longer than without the patch > > if its priority is significantly higher, especially on smaller machines. > > /me smells an inversion... on -rt we solved those ;-) > Right, but I don't see how increasing an oom killed tasks priority to a divine priority doesn't impact the priorities of other tasks which may be blocking the exit of that task, namely a coredumper or holder of mm->mmap_sem. This patch also doesn't address how it negatively impacts the priorities of jobs running in different cpusets (although sharing the same cpus) because one cpuset is oom. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>