From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: [PATCH 01/11] readahead: limit readahead size for small devices Date: Thu, 04 Feb 2010 09:24:53 +0100 Message-ID: <4B6A8455.5010403@ladisch.de> References: <20100202152835.683907822@intel.com> <20100202153316.375570078@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: Andrew Morton , Jens Axboe , Peter Zijlstra , Linux Memory Management List , linux-fsdevel@vger.kernel.org, LKML To: Wu Fengguang Return-path: In-Reply-To: <20100202153316.375570078@intel.com> Sender: owner-linux-mm@kvack.org List-Id: linux-fsdevel.vger.kernel.org Wu Fengguang wrote: > Anyone has 512/128MB USB stick? 64 MB, USB full speed: Bus 003 Device 003: ID 08ec:0011 M-Systems Flash Disk Pioneers DiskOnKey 4KB: 139.339 s, 376 kB/s 16KB: 81.0427 s, 647 kB/s 32KB: 71.8513 s, 730 kB/s 64KB: 67.3872 s, 778 kB/s 128KB: 67.5434 s, 776 kB/s 256KB: 65.9019 s, 796 kB/s 512KB: 66.2282 s, 792 kB/s 1024KB: 67.4632 s, 777 kB/s 2048KB: 69.9759 s, 749 kB/s -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org