From: Willy Tarreau <w@1wt.eu>
To: Arnaud Ebalard <arno@natisbad.org>
Cc: Cong Wang <xiyou.wangcong@gmail.com>,
edumazet@google.com, stable@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org
Subject: Re: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s
Date: Tue, 12 Nov 2013 09:36:33 +0100 [thread overview]
Message-ID: <20131112083633.GB10318@1wt.eu> (raw)
In-Reply-To: <87y54u59zq.fsf@natisbad.org>
Hi Arnaud,
On Tue, Nov 12, 2013 at 08:56:25AM +0100, Arnaud Ebalard wrote:
> I had some offline (*) discussions w/ Eric and did some test w/ the patches
> he sent. It does not fix the regression I see. It would be nice if someone
> w/ the hardware and more knowledge of mvneta driver could reproduce the
> issue and spend some time on it.
I could give it a try but am falling very short of time at the moment.
> That been said, even if the driver is most probably not the only one to
> blame here (considering the result of bisect and current thread on
> netdev), I never managed to get the performance I have on my ReadyNAS
> Duo v2 (i.e. 108MB/s for a file served by an Apache) with a mvneta-based
> platform (RN102, RN104 or RN2120). Understanding why is on an already a
> long todo list.
Yes I found that your original numbers were already quite low, so it is
also possible that you have a different problem (eg: faulty switch or
auto-negociation problem where the switch goes to half duplex because
the neta does not advertise nway or whatever) that is emphasized by the
latest changes.
> Cheers,
>
> a+
>
> (*): for some reasons, my messages to netdev and stable are not published
> even though I can interact w/ {majordomo,autoanswer}@vger.kernel.org. I
> poked postmaster@ bug got no reply yet.
I can confirm that I got this message from you on netdev so it should be OK
now.
Willy
next prev parent reply other threads:[~2013-11-12 8:36 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-10 13:53 [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s Arnaud Ebalard
2013-11-12 6:48 ` Cong Wang
2013-11-12 7:56 ` Arnaud Ebalard
2013-11-12 8:36 ` Willy Tarreau [this message]
2013-11-12 9:14 ` Arnaud Ebalard
2013-11-12 10:01 ` Willy Tarreau
2013-11-12 15:34 ` Arnaud Ebalard
2013-11-13 7:22 ` Willy Tarreau
2013-11-17 14:19 ` Willy Tarreau
2013-11-17 17:41 ` Eric Dumazet
2013-11-19 6:44 ` Arnaud Ebalard
2013-11-19 13:53 ` Eric Dumazet
2013-11-19 17:43 ` Willy Tarreau
2013-11-19 18:31 ` Eric Dumazet
2013-11-19 18:41 ` Willy Tarreau
2013-11-19 23:53 ` Arnaud Ebalard
2013-11-20 0:08 ` Eric Dumazet
2013-11-20 0:35 ` Willy Tarreau
2013-11-20 0:43 ` Eric Dumazet
2013-11-20 0:52 ` Willy Tarreau
2013-11-20 8:50 ` Thomas Petazzoni
2013-11-20 19:11 ` Willy Tarreau
2013-11-20 19:26 ` Arnaud Ebalard
2013-11-20 21:28 ` Arnaud Ebalard
2013-11-20 21:54 ` Willy Tarreau
2013-11-21 0:44 ` Willy Tarreau
2013-11-21 18:38 ` ARM network performance and dma_mask (was: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s) Willy Tarreau
2013-11-21 19:04 ` Thomas Petazzoni
2013-11-21 21:51 ` Willy Tarreau
2013-11-21 22:01 ` ARM network performance and dma_mask Rob Herring
2013-11-21 22:13 ` Willy Tarreau
2013-11-21 21:51 ` [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s Arnaud Ebalard
2013-11-21 21:52 ` Willy Tarreau
2013-11-21 22:00 ` Eric Dumazet
2013-11-21 22:55 ` Arnaud Ebalard
2013-11-21 23:23 ` Rick Jones
2013-11-20 17:12 ` Willy Tarreau
2013-11-20 17:30 ` Eric Dumazet
2013-11-20 17:38 ` Willy Tarreau
2013-11-20 18:52 ` David Miller
2013-11-20 17:34 ` Willy Tarreau
2013-11-20 17:40 ` Eric Dumazet
2013-11-20 18:15 ` Willy Tarreau
2013-11-20 18:21 ` Eric Dumazet
2013-11-20 18:29 ` Willy Tarreau
2013-11-20 19:22 ` Arnaud Ebalard
2013-11-18 10:09 ` David Laight
2013-11-18 10:52 ` Willy Tarreau
2013-11-18 10:26 ` Thomas Petazzoni
2013-11-18 10:44 ` Simon Guinot
2013-11-18 16:54 ` Stephen Hemminger
2013-11-18 17:13 ` Eric Dumazet
2013-11-18 10:51 ` Willy Tarreau
2013-11-18 17:58 ` Florian Fainelli
2013-11-12 14:39 ` [PATCH] tcp: tsq: restore minimal amount of queueing Eric Dumazet
2013-11-12 15:24 ` Sujith Manoharan
2013-11-13 14:06 ` Eric Dumazet
2013-11-13 14:32 ` [PATCH v2] " Eric Dumazet
2013-11-13 21:18 ` Arnaud Ebalard
2013-11-13 21:59 ` Holger Hoffstaette
2013-11-13 23:40 ` Eric Dumazet
2013-11-13 23:52 ` Holger Hoffstaette
2013-11-17 23:15 ` Francois Romieu
2013-11-18 16:26 ` Holger Hoffstätte
2013-11-18 16:47 ` Eric Dumazet
2013-11-13 22:41 ` Eric Dumazet
2013-11-14 21:26 ` David Miller
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