From: David S. Miller Date: Sat, 11 Jun 2016 06:58:29 +0000 (-0700) Subject: Merge branch 'remove-qdisc-throttle' X-Git-Tag: microblaze-4.10-rc1~722^2~365 X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=e69f73bfecb0178ae6bd20eb778211739cd71fab;p=linux-2.6-microblaze.git Merge branch 'remove-qdisc-throttle' Eric Dumazet says: ==================== net_sched: remove qdisc_is_throttled() HTB, CBQ and HFSC pay a very high cost updating the qdisc 'throttled' status that nothing but CBQ seems to use. CBQ usage is flaky anyway, since no qdisc ->enqueue() updates the 'throttled' qdisc status. This looks like some 'optimization' that actually cost more than code without the optimization, and might cause latency issues with CBQ. In my tests, I could achieve a 8 % performance increase in TCP_RR workload through HTB qdisc, in presence of throttled classes, and 5 % without throttled classes. ==================== Signed-off-by: David S. Miller --- e69f73bfecb0178ae6bd20eb778211739cd71fab