netdev - Re: qstats update in packet scheduling

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]

Date:	Mon, 24 Nov 2014 12:20:12 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Dave Taht <dave.taht@...il.com>
Cc:	Josh Clark <jcinma@...il.com>, netdev <netdev@...r.kernel.org>
Subject: Re: qstats update in packet scheduling

On Mon, 2014-11-24 at 11:01 -0800, Dave Taht wrote:
> On Mon, Nov 24, 2014 at 10:42 AM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> > On Mon, 2014-11-24 at 13:17 -0500, Josh Clark wrote:
> >
> >> But I'm seeing no change at all in qlen. qlen and backlog are both
> >> zero, which results in zero qavg, meaning I can't test the RED
> >> functionality at all.
> >
> > Wait. If you use some kernel patch without giving it, I can not comment.
> >
> > If you use regular "tc -s qdisc ...", then you'll see non zero qlen
> 
> Well, assuming you have BQL or a software rate limiter in place in
> front of it...

Hardly a matter, if you send _steady_ 12Mbit on a 10Mbit link, the
bottleneck should land on RED, BQL or not.


--
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