From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: Performance comparision / qdisc / no qdisc / queueing linux
 kernel 4.12
Date: Fri, 11 Aug 2017 16:16:06 -0700
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To: =?UTF-8?B?UGF3ZcWC?= Staszewski <pstaszewski@itcare.pl>
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Any of the current qdisc that do rate control are single threaded.
Since bandwidth is a shared resource, the qdisc has to acquire a lock
and update cache shared data structures.

Don't expect HTB or HFSC to be free.

> 
> 4.13-rc3 have kernel panic when deleting qdisc - will try to get panic trace

Please do.