From: Paolo Abeni
Date: Wed, 10 Apr 2019 14:32:36 +0200
> The commit 46b1c18f9deb ("net: sched: put back q.qlen into a single location")
> introduced some measurable regression in the contended scenarios for
> lock qdisc.
>
> As Eric suggested we could replace q.qlen access with calls to
> qdis
The commit 46b1c18f9deb ("net: sched: put back q.qlen into a single location")
introduced some measurable regression in the contended scenarios for
lock qdisc.
As Eric suggested we could replace q.qlen access with calls to qdisc_is_empty()
in the datapath and revert the above commit. The TC subsys
