From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: unexpected downspeed of AHCI controller on Intel Seaburg 5400 Date: Mon, 24 Nov 2008 14:40:17 +0900 Message-ID: <492A3E41.7020109@kernel.org> References: <6.2.5.6.2.20081118154009.01c8a2d0@binnacle.cx> <4923743A.2050903@shaw.ca> <6.2.5.6.2.20081118210621.01d6c680@binnacle.cx> <492A3912.3060305@kernel.org> <6.2.5.6.2.20081124002812.01ca7788@binnacle.cx> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from hera.kernel.org ([140.211.167.34]:45485 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750743AbYKXFkY (ORCPT ); Mon, 24 Nov 2008 00:40:24 -0500 In-Reply-To: <6.2.5.6.2.20081124002812.01ca7788@binnacle.cx> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: starlight@binnacle.cx Cc: linux-ide@vger.kernel.org starlight@binnacle.cx wrote: > Thank you for explaining how it works. Have resigned to living > with 1.5G. A reason exists to run the ES.2s at their full > sequential 100 Mbytes/sec (800 Mbits/sec), and I had hoped that > lowering the latency on the link might squeeze a bit more > performance. But 1.5 is good enough. Considering general disk operation speed and the parallel operation achieved using NCQ, I don't think it will make any noticeable difference. Thanks. -- tejun