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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) :)



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