From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: TCP transmit performance regression Date: Fri, 06 Jul 2012 06:58:34 +0200 Message-ID: <1341550714.3265.44.camel@edumazet-glaptop> References: <1341474192.2583.3299.camel@edumazet-glaptop> <1341477192.2583.3415.camel@edumazet-glaptop> <1341481760.2583.3579.camel@edumazet-glaptop> <1341484919.2583.3688.camel@edumazet-glaptop> <1341500196.2583.4222.camel@edumazet-glaptop> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: Network Development , David Miller To: Ming Lei Return-path: Received: from mail-ee0-f46.google.com ([74.125.83.46]:47912 "EHLO mail-ee0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751004Ab2GFE6l (ORCPT ); Fri, 6 Jul 2012 00:58:41 -0400 Received: by eeit10 with SMTP id t10so3460414eei.19 for ; Thu, 05 Jul 2012 21:58:40 -0700 (PDT) In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: On Fri, 2012-07-06 at 08:45 +0800, Ming Lei wrote: > Unfortunately, the patch still hasn't any improvement on the transmit > performance of beagle-xm. Ah yes, I need to change usbnet as well to be able to fully recycle the big skbs allocated in turbo mode. Right now they are constantly allocated/freed and this sucks if SLAB wants to check poison bytes in debug mode. Thanks