From: arno@natisbad.org (Arnaud Ebalard)
To: linux-arm-kernel@lists.infradead.org
Subject: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s
Date: Wed, 20 Nov 2013 20:22:31 +0100 [thread overview]
Message-ID: <87bo1eq3ns.fsf@natisbad.org> (raw)
In-Reply-To: 20131120181532.GM8581@1wt.eu
Hi,
Willy Tarreau <w@1wt.eu> writes:
> On Wed, Nov 20, 2013 at 09:40:22AM -0800, Eric Dumazet wrote:
>> On Wed, 2013-11-20 at 18:34 +0100, Willy Tarreau wrote:
>>
>> > One important point, I was looking for the other patch you pointed
>> > in this long thread and finally found it :
>> >
>> > > So
>> > > http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=98e09386c0ef4dfd48af7ba60ff908f0d525cdee
>> > >
>> > > restored this minimal amount of buffering, and let the bigger amount for
>> > > 40Gb NICs ;)
>> >
>> > This one definitely restores original performance, so it's a much better
>> > bet in my opinion :-)
>>
>> I don't understand. I thought you were using this patch.
>
> No, I was on latest stable (3.10.19) which exhibits the regression but does
> not yet have your fix above. Then I tested the patch your proposed in this
> thread, then this latest one. Since the patch is not yet even in Linus'
> tree, I'm not sure Arnaud has tried it yet.
This is the one I have used for a week now, since its publication by
Eric a week ago:
http://www.spinics.net/lists/netdev/msg257396.html
Cheers,
a+
WARNING: multiple messages have this Message-ID (diff)
From: arno@natisbad.org (Arnaud Ebalard)
To: Willy Tarreau <w@1wt.eu>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
netdev@vger.kernel.org, edumazet@google.com,
Cong Wang <xiyou.wangcong@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [BUG,REGRESSION?] 3.11.6+,3.12: GbE iface rate drops to few KB/s
Date: Wed, 20 Nov 2013 20:22:31 +0100 [thread overview]
Message-ID: <87bo1eq3ns.fsf@natisbad.org> (raw)
In-Reply-To: 20131120181532.GM8581@1wt.eu
Hi,
Willy Tarreau <w@1wt.eu> writes:
> On Wed, Nov 20, 2013 at 09:40:22AM -0800, Eric Dumazet wrote:
>> On Wed, 2013-11-20 at 18:34 +0100, Willy Tarreau wrote:
>>
>> > One important point, I was looking for the other patch you pointed
>> > in this long thread and finally found it :
>> >
>> > > So
>> > > http://git.kernel.org/cgit/linux/kernel/git/davem/net.git/commit/?id=98e09386c0ef4dfd48af7ba60ff908f0d525cdee
>> > >
>> > > restored this minimal amount of buffering, and let the bigger amount for
>> > > 40Gb NICs ;)
>> >
>> > This one definitely restores original performance, so it's a much better
>> > bet in my opinion :-)
>>
>> I don't understand. I thought you were using this patch.
>
> No, I was on latest stable (3.10.19) which exhibits the regression but does
> not yet have your fix above. Then I tested the patch your proposed in this
> thread, then this latest one. Since the patch is not yet even in Linus'
> tree, I'm not sure Arnaud has tried it yet.
This is the one I have used for a week now, since its publication by
Eric a week ago:
http://www.spinics.net/lists/netdev/msg257396.html
Cheers,
a+
next prev parent reply other threads:[~2013-11-20 19:22 UTC|newest]
Thread overview: 121+ 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
2013-11-10 13:53 ` Arnaud Ebalard
2013-11-12 6:48 ` Cong Wang
2013-11-12 6:48 ` Cong Wang
2013-11-12 7:56 ` Arnaud Ebalard
2013-11-12 7:56 ` Arnaud Ebalard
2013-11-12 8:36 ` Willy Tarreau
2013-11-12 8:36 ` Willy Tarreau
2013-11-12 9:14 ` Arnaud Ebalard
2013-11-12 9:14 ` Arnaud Ebalard
2013-11-12 10:01 ` Willy Tarreau
2013-11-12 10:01 ` Willy Tarreau
2013-11-12 15:34 ` Arnaud Ebalard
2013-11-12 15:34 ` Arnaud Ebalard
2013-11-13 7:22 ` Willy Tarreau
2013-11-13 7:22 ` Willy Tarreau
2013-11-17 14:19 ` Willy Tarreau
2013-11-17 14:19 ` Willy Tarreau
2013-11-17 17:41 ` Eric Dumazet
2013-11-17 17:41 ` Eric Dumazet
2013-11-19 6:44 ` Arnaud Ebalard
2013-11-19 6:44 ` Arnaud Ebalard
2013-11-19 13:53 ` Eric Dumazet
2013-11-19 13:53 ` Eric Dumazet
2013-11-19 17:43 ` Willy Tarreau
2013-11-19 17:43 ` Willy Tarreau
2013-11-19 18:31 ` Eric Dumazet
2013-11-19 18:31 ` Eric Dumazet
2013-11-19 18:41 ` Willy Tarreau
2013-11-19 18:41 ` Willy Tarreau
2013-11-19 23:53 ` Arnaud Ebalard
2013-11-19 23:53 ` Arnaud Ebalard
2013-11-20 0:08 ` Eric Dumazet
2013-11-20 0:08 ` Eric Dumazet
2013-11-20 0:35 ` Willy Tarreau
2013-11-20 0:35 ` Willy Tarreau
2013-11-20 0:43 ` Eric Dumazet
2013-11-20 0:43 ` Eric Dumazet
2013-11-20 0:52 ` Willy Tarreau
2013-11-20 0:52 ` Willy Tarreau
2013-11-20 8:50 ` Thomas Petazzoni
2013-11-20 8:50 ` Thomas Petazzoni
2013-11-20 19:21 ` Arnaud Ebalard
2013-11-20 19:11 ` Willy Tarreau
2013-11-20 19:11 ` Willy Tarreau
2013-11-20 19:26 ` Arnaud Ebalard
2013-11-20 19:26 ` Arnaud Ebalard
2013-11-20 21:28 ` Arnaud Ebalard
2013-11-20 21:28 ` Arnaud Ebalard
2013-11-20 21:54 ` Willy Tarreau
2013-11-20 21:54 ` Willy Tarreau
2013-11-21 0:44 ` 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 19:04 ` Thomas Petazzoni
2013-11-21 21:51 ` ARM network performance and dma_mask (was: [BUG, REGRESSION?] 3.11.6+, 3.12: " Willy Tarreau
2013-11-21 21:51 ` ARM network performance and dma_mask (was: [BUG,REGRESSION?] 3.11.6+,3.12: " Willy Tarreau
2013-11-21 22:01 ` ARM network performance and dma_mask Rob Herring
2013-11-21 22:01 ` Rob Herring
2013-11-21 22:13 ` Willy Tarreau
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 21:51 ` Arnaud Ebalard
2013-11-21 21:52 ` Willy Tarreau
2013-11-21 21:52 ` Willy Tarreau
2013-11-21 22:00 ` Eric Dumazet
2013-11-21 22:00 ` Eric Dumazet
2013-11-21 22:55 ` Arnaud Ebalard
2013-11-21 22:55 ` Arnaud Ebalard
2013-11-21 23:23 ` Rick Jones
2013-11-21 23:23 ` Rick Jones
2013-11-20 17:12 ` Willy Tarreau
2013-11-20 17:12 ` Willy Tarreau
2013-11-20 17:30 ` Eric Dumazet
2013-11-20 17:30 ` Eric Dumazet
2013-11-20 17:38 ` Willy Tarreau
2013-11-20 17:38 ` Willy Tarreau
2013-11-20 18:52 ` David Miller
2013-11-20 18:52 ` David Miller
2013-11-20 17:34 ` Willy Tarreau
2013-11-20 17:34 ` Willy Tarreau
2013-11-20 17:40 ` Eric Dumazet
2013-11-20 17:40 ` Eric Dumazet
2013-11-20 18:15 ` Willy Tarreau
2013-11-20 18:15 ` Willy Tarreau
2013-11-20 18:21 ` Eric Dumazet
2013-11-20 18:21 ` Eric Dumazet
2013-11-20 18:29 ` Willy Tarreau
2013-11-20 18:29 ` Willy Tarreau
2013-11-20 19:22 ` Arnaud Ebalard [this message]
2013-11-20 19:22 ` Arnaud Ebalard
2013-11-18 10:09 ` David Laight
2013-11-18 10:09 ` David Laight
2013-11-18 10:52 ` Willy Tarreau
2013-11-18 10:52 ` Willy Tarreau
2013-11-18 10:26 ` Thomas Petazzoni
2013-11-18 10:26 ` Thomas Petazzoni
2013-11-18 10:44 ` Simon Guinot
2013-11-18 10:44 ` Simon Guinot
2013-11-18 16:54 ` Stephen Hemminger
2013-11-18 16:54 ` Stephen Hemminger
2013-11-18 17:13 ` Eric Dumazet
2013-11-18 17:13 ` Eric Dumazet
2013-11-18 10:51 ` Willy Tarreau
2013-11-18 10:51 ` Willy Tarreau
2013-11-18 17:58 ` Florian Fainelli
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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