From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andi Kleen Subject: Re: [PATCH] Gianfar SKB Recycling Support Date: Thu, 18 May 2006 00:55:30 +0200 Message-ID: <200605180055.31051.ak@suse.de> References: <18AEF66AFDF06F4CAAA1D419D000FD33524B79@az33exm24.fsl.freescale.net> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, "Fleming Andy-afleming" , "Kumar Gala" Return-path: Received: from cantor.suse.de ([195.135.220.2]:32450 "EHLO mx1.suse.de") by vger.kernel.org with ESMTP id S1750843AbWEQWzr (ORCPT ); Wed, 17 May 2006 18:55:47 -0400 To: "Haruki Dai-r35557" In-Reply-To: <18AEF66AFDF06F4CAAA1D419D000FD33524B79@az33exm24.fsl.freescale.net> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Thursday 18 May 2006 00:45, Haruki Dai-r35557 wrote: > This patch improves the IP forwarding throughput of > the Freescale TSEC/eTSEC Gianfar driver. By recycling > the Socket buffer and Data buffer, reduce the unnecessary > memory allocation and de-allocation in the forwarding > processing chain. Seems very hackish because it only works inside the driver. Also there is a reason why Linux doesn't support this normally - it wrecks the unified memory management because you won't free your pools on memory pressure. -Andi