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From: Artyom Mirgorodsky <man@email.com.ua>
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To: Hans Petter Selasky <hselasky@c2i.net>
Date: Sun, 1 Mar 2009 20:11:03 +0200
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Cc: freebsd-usb@freebsd.org
Subject: Re: Low perfomance when read from usb flash drive
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7.1 livefs test result:

 dd if=/dev/da0 of=/dev/null bs=65536
 19534+0 records in
 19534+0 records out
 1280180224 bytes transferred in 64.897932 secs (197263329 bytes/sec)
 
 systat -vm
 
 Disks    da0
 KB/t    64.00
 tps      301
 MB/s   18.84
 %busy     99