From: Eric Dumazet <eric.dumazet@gmail.com>
To: Pavel Machek <pavel@ucw.cz>
Cc: nic_swsd@realtek.com, romieu@fr.zoreil.com, netdev@vger.kernel.org
Subject: Re: Extremely bad performance with RTL8111/8168B
Date: Mon, 08 Jul 2013 06:47:49 -0700 [thread overview]
Message-ID: <1373291269.4979.102.camel@edumazet-glaptop> (raw)
In-Reply-To: <20130708095459.GA29788@amd.pavel.ucw.cz>
On Mon, 2013-07-08 at 11:54 +0200, Pavel Machek wrote:
> Hi!
>
> I've small Intel desktop with RTL8111/8168B ethernet... but the
> performance is extremely bad.
>
> In 3.10, I only get about 200KB/sec:
>
> pavel@amd:~$ scp /tmp/delme pavel@duo:/tmp
> pavel@duo's password:
> delme 100% 16MB
> 236.0KB/s 01:09
>
> In older version, I get 1MB/s, but network fails every 10 minutes or
> so. Card is:
>
> 03:00.0 Ethernet controller: Realtek Semiconductor Co.,
> Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 03)
>
> I did install firmware-realtek package as suggested by debian
> installer.
>
> Dmesg says:
>
> r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
> r8169 0000:03:00.0 eth0: RTL8168d/8111d at 0xf8010000,
> 00:27:0e:2a:43:71, XID 081000c0 IRQ 17
> r8169 0000:03:00.0 eth0: jumbo features [frames: 9200 bytes, tx
> checksumming: ko]
>
> Any ideas what is wrong?
Hi Pavel
I guess receiving is OK ?
It looks like TSO packets are not transmitted, so TCP only 'works'
because retransmits use non TSO packets.
Could you report "ethtool -k eth0" ?
try : ethtool -K eth0 tso off
next prev parent reply other threads:[~2013-07-08 13:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-08 9:54 Extremely bad performance with RTL8111/8168B Pavel Machek
2013-07-08 13:47 ` Eric Dumazet [this message]
2013-07-08 22:01 ` Francois Romieu
2013-07-09 0:09 ` Pavel Machek
2013-07-09 0:12 ` Eric Dumazet
2013-07-09 9:32 ` Pavel Machek
2013-07-09 23:29 ` Ben Hutchings
2013-07-09 0:24 ` Pavel Machek
2013-07-09 2:24 ` hayeswang
2013-07-10 13:41 ` Pavel Machek
2013-07-10 19:29 ` Francois Romieu
2013-07-11 0:24 ` Pavel Machek
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