From: Stephen Hemminger <stephen@networkplumber.org>
To: "Paweł Staszewski" <pstaszewski@itcare.pl>
Cc: netdev@vger.kernel.org
Subject: Re: Performance comparision / qdisc / no qdisc / queueing linux kernel 4.12
Date: Fri, 11 Aug 2017 16:16:06 -0700 [thread overview]
Message-ID: <20170811161606.561b3fbb@xeon-e3> (raw)
In-Reply-To: <fa7bc3ce-5dc7-e236-ec35-0afe3fc830bc@itcare.pl>
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.
next prev parent reply other threads:[~2017-08-11 23:16 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-05 16:38 Performance comparision / qdisc / no qdisc / queueing linux kernel 4.12 Paweł Staszewski
2017-08-05 16:55 ` Paweł Staszewski
2017-08-11 23:16 ` Stephen Hemminger [this message]
2017-08-12 16:23 ` Tom Herbert
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