Date: Mon, 23 Jul 2012 03:02:56 -0700 (PDT) From: Jakub Lach <jakub_lach@mailplus.pl> To: freebsd-questions@freebsd.org Subject: Re: "da0: 40.000MB/s transfers" What was rationale behind pegging USB 2.0 at 40MB/s? Message-ID: <1343037776471-5729143.post@n5.nabble.com> In-Reply-To: <alpine.BSF.2.00.1207230940390.7616@wojtek.tensor.gdynia.pl> References: <1342992043358-5729028.post@n5.nabble.com> <alpine.BSF.2.00.1207230940390.7616@wojtek.tensor.gdynia.pl>
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> i have never seen USB 2.0 exceeding 35MB/s write and 40MB/s read. That means I essentially got what I wanted- as high read output as possible on USB 2.0. Thanks. Indeed 35MB/s-40MB/s is common reported maximum throughput. > dd if=/dev/zero of=/dev/da0 bs=64k count=1 > newfs_msdosfs /dev/da0 Apart from bs= that's exactly what I did (Well, there was one /dev/random/ run prior.) What I previously meant is that I had such pendrive, that without former formatting in Windows, didn't even show up as device in FreeBSD- was completely useless. That does not mean I didn't newfs_msdosfsed it after that in FreeBSD (worked perfectly fine since) :) -- 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-tp5729028p5729143.html Sent from the freebsd-questions mailing list archive at Nabble.com.
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