Date: Wed, 28 Apr 2004 11:28:09 +0100 From: Mark Knight <markk@knigma.org> To: freebsd-stable@freebsd.org Subject: Incredibly slow USB CompactFlash reader Message-ID: <9FcK5HP5c4jAFwlX@lap.knigma.org>
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I posted a similar query back in September, but having just tried with 4.10-PRERELEASE, I thought it might be worth mentioning this again: Throughput using a Belkin USB CompactFlash reader (with SanDisk 64MB card installed) is reliable but *incredibly* slow: >mkn@shrewd$ sudo dd if=/dev/da0s1c of=/dev/null bs=512 count=100 >100+0 records in >100+0 records out >51200 bytes transferred in 104.866992 secs (488 bytes/sec) This doesn't seem consistent with: >da0: <OEI-USB CompactFlash 5.00> Removable Direct Access SCSI-0 device >da0: 650KB/s transfers Full diagnostics at: <http://www.knigma.org.uk/~mkn/usb.txt>; Should I bug it? Any suggestions gratefully received. -- Mark A. R. Knight finger: markk@knigma.org Tel: +44 7973 410732 http://www.knigma.org/
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