From: David S. Miller Date: Thu, 17 May 2018 16:46:55 +0000 (-0400) Subject: Merge branch 'sched-refactor-NOLOCK-qdiscs' X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=4b9c77680375f5ecb7d2c4bc4c0db67cdf531c09;p=openwrt%2Fstaging%2Fblogic.git Merge branch 'sched-refactor-NOLOCK-qdiscs' Paolo Abeni says: ==================== sched: refactor NOLOCK qdiscs With the introduction of NOLOCK qdiscs, pfifo_fast performances in the uncontended scenario degraded measurably, especially after the commit eb82a9944792 ("net: sched, fix OOO packets with pfifo_fast"). This series restore the pfifo_fast performances in such scenario back the previous level, mainly reducing the number of atomic operations required to perform the qdisc_run() call. Even performances in the contended scenario increase measurably. Note: This series is on top of: sched: manipulate __QDISC_STATE_RUNNING in qdisc_run_* helpers ==================== Signed-off-by: David S. Miller --- 4b9c77680375f5ecb7d2c4bc4c0db67cdf531c09