On Mon, Apr 22, 2013 at 3:23 AM, Peter Zijlstra <[email protected]> wrote: > > OK,.. Ingo said that pipe-test was the original motivation for > wake_affine() and since that's currently broken to pieces due to > select_idle_sibling() is there still a benefit to having it at all? > > Can anybody find any significant regression when simply killing > wake_affine()? >
This matches our experience; we've always tuned toward a more aggressive select_idle_sibling() for in-socket wake-ups. We did recently turn it back on in the cross-socket case (e.g. SD_NODE) however as we were able to observe a benefit on a few workloads. -- 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/
