Subject: Re: TSO on wm(4) (Intel Pro/1000): i82546 vs i8254EI vs others?
To: Jonathan Stone <firstname.lastname@example.org>
From: Jason Thorpe <email@example.com>
Date: 05/22/2005 15:29:12
On May 22, 2005, at 12:35 PM, Jonathan Stone wrote:
> The 82544 works for me, insofaras ttcp works with TSO enabled;
> but I don't see a performance gain. Is there a software workaround?
> (The words "at one point" hint that way.)
> If not, then on balance I'd prefer that wm(4) not set the CSUM_TSOv4
> capability on 82544 chips. Objections? Comments?
It reduces CPU load "a little", and Linux still leaves it enabled on
those chips. So why not?