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Re: [e1000 2.6 10/11] TxDescriptors -> 1024 default

To: Jeff Garzik <jgarzik@xxxxxxxxx>
Subject: Re: [e1000 2.6 10/11] TxDescriptors -> 1024 default
From: Ricardo C Gonzalez <ricardoz@xxxxxxxxxx>
Date: Thu, 11 Sep 2003 16:27:04 -0500
Cc: netdev@xxxxxxxxxxx, jgarzik@xxxxxxxxx, scott.feldman@xxxxxxxxx, davem@xxxxxxxxxx
Importance: Normal
In-reply-to: <3F60DE5B.1010700@pobox.com>
Sender: netdev-bounce@xxxxxxxxxxx
Sensitivity:

      Do not make these a UDP issue. It is much easier today to overrun the
Tx queue as  N TCP connections can be running in parallel on different
CPU's.

You can see these on the data I sent out.

regards,

----------------------------------------------------------------------------------

***  ALWAYS THINK POSITIVE ***

Rick Gonzalez
IBM Linux Performance Group
Building: 905    Office: 7G019
Phone: (512) 838-0623

Jeff Garzik <jgarzik@xxxxxxxxx> on 09/11/2003 03:43:07 PM

To:    Ricardo C Gonzalez/Austin/IBM@ibmus
cc:    scott.feldman@xxxxxxxxx, greearb@xxxxxxxxxxxxxxx
Subject:    Re: [e1000 2.6 10/11] TxDescriptors -> 1024 default



Ricardo C Gonzalez wrote:
> The default Tx queue can easly be overrun by todayâs SMP
> systems
> taking into consideration that these are 4way systems at Ghz speeds.


As I said, this is expected.

And please CC the netdev@xxxxxxxxxxx mailing list, where technical
discussions like this are held.

 Jeff





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