From owner-freebsd-questions@FreeBSD.ORG Sun Jul 22 21:20:50 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7A9A4106566C for ; Sun, 22 Jul 2012 21:20:50 +0000 (UTC) (envelope-from jakub_lach@mailplus.pl) Received: from sam.nabble.com (sam.nabble.com [216.139.236.26]) by mx1.freebsd.org (Postfix) with ESMTP id 540748FC0C for ; Sun, 22 Jul 2012 21:20:49 +0000 (UTC) Received: from [192.168.236.26] (helo=sam.nabble.com) by sam.nabble.com with esmtp (Exim 4.72) (envelope-from ) id 1St3Zz-0000E5-Bk for freebsd-questions@freebsd.org; Sun, 22 Jul 2012 14:20:43 -0700 Date: Sun, 22 Jul 2012 14:20:43 -0700 (PDT) From: Jakub Lach To: freebsd-questions@freebsd.org Message-ID: <1342992043358-5729028.post@n5.nabble.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: "da0: 40.000MB/s transfers" What was rationale behind pegging USB 2.0 at 40MB/s? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 Jul 2012 21:20:50 -0000 Hi, I was fortunate enough to buy USB 3.0 pendrive, which actually works with FreeBSD just ripped from package! (normal _empty_ FAT filesystem, no garbageware added, no need to format). It actually bounces from 40MB/s limit when reading from it. Writing is about 18MB/s. Device is supposed to be "467x" which should be about 70MB/s. And USB 2.0 hard limit is 60MB/s. Wouldn't be nice to squeeze few additional MB/s? -- View this message in context: http://freebsd.1045724.n5.nabble.com/da0-40-000MB-s-transfers-What-was-rationale-behind-pegging-USB-2-0-at-40MB-s-tp5729028.html Sent from the freebsd-questions mailing list archive at Nabble.com.