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From: Bugzilla-Redirect <bugzilla@sysreset.com>
To: lartc@vger.kernel.org
Subject: Re: [LARTC] Re: htb traffic shaping problem
Date: Tue, 19 Sep 2006 02:42:07 +0000	[thread overview]
Message-ID: <6.2.0.14.2.20060918204013.031a9e18@linux.sysreset.com> (raw)
In-Reply-To: <6.2.0.14.2.20060912225307.02dd8f98@linux.sysreset.com>

I was not aware that segmentation offloading would cause a problem... and I 
do believe it's on.

I think I'll just stuck with the high mtu for the moment then, as I would 
rather have the CPU savings
then more accurate traffic controlling.

Thanks.
-Ryan Power

At 07:48 AM 9/18/2006, Andy Furniss wrote:
>gypsy wrote:
>>Bugzilla-Redirect wrote:
>>
>>>Yes, the output is below:
>>>eth0      Link encap:Ethernet  HWaddr 00:11:09:2A:A6:F6
>>>           inet addr:10.0.0.50  Bcast:10.0.0.255  Mask:255.255.255.0
>>>           UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>>>           RX packets:4244867 errors:0 dropped:0 overruns:0 frame:0
>>>           TX packets:1306632 errors:0 dropped:0 overruns:0 carrier:0
>>>           collisions:0 txqueuelen:1000
>>>           RX bytes:3898905509 (3.6 GiB)  TX bytes:1756030081 (1.6 GiB)
>>>           Interrupt:19
>>
>>Try a "quantum 1514" then; that is correct for an ethernet device with
>>an MTU of 1500.
>>Perhaps reading the source code will give a clue about MPU and MTU? 
>>Frankly, I'd set it to whatever works as long as the rest of the status
>>info looks right and not give a damn that it is huge.
>
>Even if ifconfig says 1500 there have been posts that say you don't get it 
>with gig cards that do segmentation offload unless you can turn it off 
>with ethtool.
>
>Apologies if this has already been said as I don't have all the thread.
>
>Andy.

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      parent reply	other threads:[~2006-09-19  2:42 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2006-09-13  4:59 [LARTC] Re: htb traffic shaping problem Bugzilla-Redirect
2006-09-14 10:53 ` e.janz
2006-09-16  1:38 ` Bugzilla-Redirect
2006-09-16 16:20 ` gypsy
2006-09-18 13:48 ` Andy Furniss
2006-09-19  2:42 ` Bugzilla-Redirect [this message]

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