[Bridge] Lowering CPU utilisation

Leigh Sharpe lsharpe at pacificwireless.com.au
Tue Nov 6 18:20:48 PST 2007


> Did you remember to configure NAPI for the e1000 driver (it is
optional).

As far as I can tell, it's on by default. A 'make menuconfig' shows "Use
Rx Polling (NAPI)" as being enabled.
 

  

-----Original Message-----
From: Stephen Hemminger [mailto:shemminger at linux-foundation.org] 
Sent: Wednesday, 7 November 2007 9:19 AM
To: Leigh Sharpe
Cc: Vaidas M; bridge at lists.linux-foundation.org
Subject: Re: [Bridge] Lowering CPU utilisation

On Wed, 7 Nov 2007 08:51:41 +1100
"Leigh Sharpe" <lsharpe at pacificwireless.com.au> wrote:

> I'm using e1000 cards.
> According to oprofile, around 50% of the time is spent in the e1000
> driver. 
> Given that my load average is still under 0.5, I suspect I've got
plenty
> of room for the driver to handle more traffic before I need to worry
too
> much.
>  
>
Did you remember to configure NAPI for the e1000 driver (it is
optional).

-- 
Stephen Hemminger <shemminger at linux-foundation.org>



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