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Re: [E1000-devel] Transmission limit

To: Marco Mellia <mellia@xxxxxxxxxxxxxxxxxxxx>
Subject: Re: [E1000-devel] Transmission limit
From: Lennert Buytenhek <buytenh@xxxxxxxxxxxxxx>
Date: Mon, 29 Nov 2004 16:19:40 +0100
Cc: e1000-devel@xxxxxxxxxxxxxxxxxxxxx, Jorge Manuel Finochietto <jorge.finochietto@xxxxxxxxx>, Giulio Galante <galante@xxxxxxxxx>, netdev@xxxxxxxxxxx
In-reply-to: <1101732267.14930.75.camel@verza.polito.it>
References: <1101467291.24742.70.camel@mellia.lipar.polito.it> <41A73826.3000109@draigBrady.com> <20041127200030.GD27762@xi.wantstofly.org> <1101732267.14930.75.camel@verza.polito.it>
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On Mon, Nov 29, 2004 at 01:44:27PM +0100, Marco Mellia wrote:

> This "resets" the registers and writes in the TDFPC that there are 10
> pkts in the TX queue.
> Now when we do:
> 
> ping -c 1 x.x.x.x
> 
> You will see that the NIC will transmit 11 pkts (10 we "preloaded" + the
> new one).
> If you try to measure the TX speed you will see that it is ~ the wire
> speed.

How are you measuring this?


cheers,
Lennert

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