netdev - Re: [PATCH net-next 2/2] net: sched: Lockless Token Bucket (LTB) Qdisc

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Message-ID: <CAM_iQpWAHdws4Zu=qD1g5E3tOShefQwK8Mbf9YNCiR2OvHA-Kw@mail.gmail.com>
Date:   Thu, 9 Jul 2020 22:20:06 -0700
From:   Cong Wang <xiyou.wangcong@...il.com>
To:     "YU, Xiangning" <xiangning.yu@...baba-inc.com>
Cc:     Linux Kernel Network Developers <netdev@...r.kernel.org>
Subject: Re: [PATCH net-next 2/2] net: sched: Lockless Token Bucket (LTB) Qdisc

On Thu, Jul 9, 2020 at 10:04 PM Cong Wang <xiyou.wangcong@...il.com> wrote:
> IOW, without these *additional* efforts, it is broken in terms of
> out-of-order.
>

Take a look at fq_codel, it provides a hash function for flow classification,
fq_codel_hash(), as default, thus its default configuration does not
have such issues. So, you probably want to provide such a hash
function too instead of a default class.