Subject: Re: [PATCH] abysmal e1000 performance (DITR)

From: Jeff Garzik <[email-masked]>
Date: Thu, 26 Aug 2004 16:26:50 -0400

Thayne Harbaugh wrote:
> On Thu, 2004-08-26 at 13:55 -0400, jamal wrote:
> 
>>Ganesh,
>>
>>Can you please make this feature off by default and perhaps
>>accesible via ethtool for peopel who want to turn it on.
>>I just wasted a few hours and was bitten by this performance-wise.
>>Please consider disabling it.
> 
> 
> This is a *horrible* problem.  Even though it's fixable by passing a
> module parameter, the default bites those that *know* about it.  We have
> had customers bitten by this and customers that have insisted in
> swapping all the NICs in a cluster to Broadcom TG3 NICs.
> 
> It's a black eye for Intel and a loss of business - that's the opinion
> of our customers.

If it's so bad we should disable it by default, either via the module 
parameter or via a kernel CONFIG_xxx option.

	Jeff