From: Chris Adams <cmadams@hiwaay.net>
To: Francois Romieu <romieu@fr.zoreil.com>
Cc: netdev@vger.kernel.org, hayeswang <hayeswang@realtek.com>
Subject: Re: r8169 performance?
Date: Tue, 6 Dec 2011 22:19:19 -0600 [thread overview]
Message-ID: <20111207041919.GE3937@hiwaay.net> (raw)
In-Reply-To: <20111206082247.GA29089@electric-eye.fr.zoreil.com>
Once upon a time, Francois Romieu <romieu@fr.zoreil.com> said:
> It will disappear once http://marc.info/?l=linux-netdev&m=132306718323579
> is applied. You may apply http://marc.info/?l=linux-netdev&m=132306715823570
> too but I doubt it will make much difference for you.
I'll give it a try to double-check (it'll probably be a few days before
I can get to it).
> > Also, they load different firmware (so I guess my problem could be firmware
> > related, which I guess only RealTek could find/fix).
> >
> > I guess my question is this: is there a chance this can be solved with
> > driver changes, or should I just accept that the on-board NIC has poor
> > performance and install an add-in NIC?
>
> (I understand that the systems (CPU, bus...) are not necessary the same.)
>
> Did you check if Tx checksumming is enabled ?
>
> It could make a noticeable difference.
That is off on both of my r8169 systems. Enabling it on the "good"
system killed networking (even my existing SSH session was hung) until I
re-disabled it. Enabling it on the "problem" system didn't appear to
make any significant difference.
The otherwise "good" system is running an older kernel (Fedora 14,
2.6.35.14); maybe some changes have been made so that "tx on" works on a
newer driver? Or maybe the slightly different chip revision is the
difference.
--
Chris Adams <cmadams@hiwaay.net>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.
prev parent reply other threads:[~2011-12-07 4:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-04 21:10 r8169 performance? Chris Adams
2011-12-04 21:50 ` Eric Dumazet
2011-12-04 22:02 ` Chris Adams
2011-12-04 23:40 ` Francois Romieu
2011-12-05 0:46 ` Chris Adams
2011-12-05 6:44 ` Francois Romieu
2011-12-05 14:54 ` Chris Adams
2011-12-06 8:22 ` Francois Romieu
2011-12-07 4:19 ` Chris Adams [this message]
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