netdev - Re: HTB accuracy on 10GbE

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: <4AF27A48.4090001@gmail.com>
Date:	Thu, 05 Nov 2009 08:10:00 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Ryousei Takano <ryousei@...il.com>
CC:	Stephen Hemminger <shemminger@...tta.com>,
	Patrick McHardy <kaber@...sh.net>,
	Linux Netdev List <netdev@...r.kernel.org>,
	takano-ryousei@...t.go.jp
Subject: Re: HTB accuracy on 10GbE

Ryousei Takano a écrit :
> In my experiment, it is not very big problem.  I do not send short packets.
> I got the almost same result in the both cases "mtu 64000" and "mtu
> 40000 quantum 60000".
> 
> Anyway, setting larger mtu size than the physical mtu does not quiet make sense.
> 

tc class mtu is a hint given to stack, about average packet size, ie not
related to physical MTU (because of TSO)

You could use same mtu, but disable tso on device
--
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