netdev - Re: Using HTB over MultiQ

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1383933329.9412.243.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Fri, 08 Nov 2013 09:55:29 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	John Fastabend <john.r.fastabend@...el.com>
Cc:	Anton 'EvilMan' Danilov <littlesmilingcloud@...il.com>,
	netdev@...r.kernel.org
Subject: Re: Using HTB over MultiQ

On Fri, 2013-11-08 at 07:11 -0800, John Fastabend wrote:

> 
> perf would be interesting but note that multiq still uses the root qdisc
> lock which you original stated you were trying to avoid.
> 
> mq and mqprio are really the only two existing qdiscs that work well for
> performance with small packet sizes and multiqueue nics at least in my
> experience/setup with these kinds of micro-benchmarks.

Right, but can we actually use HTB on MQ ?

I do not think so : following does not work.

for ETH in eth0
do
 tc qd del dev $ETH root 2>/dev/null

 tc qd add dev $ETH root handle 100: mq 
 for i in `seq 1 4`
 do
  tc qd add dev $ETH parent 100:$i handle $i htb
 done
done



--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html