Hey guys! I'm running 3.7 and am getting really, really crappy usb throughput :( -
# dd if=/dev/sd0c of=/dev/null bs=819200 count=100 100+0 records in 100+0 records out 81920000 bytes transferred in 175.970 secs (465533 bytes/sec) Here's an excerpt from my dmesg - uhci0 at pci0 dev 29 function 0 "Intel 82801DB USB" rev 0x01: irq 11 usb0 at uhci0: USB revision 1.0 uhub0 at usb0 uhub0: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub0: 2 ports with 2 removable, self powered uhci1 at pci0 dev 29 function 1 "Intel 82801DB USB" rev 0x01: irq 10 usb1 at uhci1: USB revision 1.0 uhub1 at usb1 uhub1: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub1: 2 ports with 2 removable, self powered uhci2 at pci0 dev 29 function 2 "Intel 82801DB USB" rev 0x01: irq 9 usb2 at uhci2: USB revision 1.0 uhub2 at usb2 uhub2: Intel UHCI root hub, class 9/0, rev 1.00/1.00, addr 1 uhub2: 2 ports with 2 removable, self powered ehci0 at pci0 dev 29 function 7 "Intel 82801DB USB" rev 0x01: irq 3 ehci0: EHCI version 1.0 ehci0: companion controllers, 2 ports each: uhci0 uhci1 uhci2 usb3 at ehci0: USB revision 2.0 uhub3 at usb3 uhub3: Intel EHCI root hub, class 9/0, rev 2.00/1.00, addr 1 uhub3: single transaction translator uhub3: 6 ports with 6 removable, self powered ... umass0 at uhub3 port 2 configuration 1 interface 0 umass0: vendor 0x0457 USB Mass Storage Device, rev 2.00/1.00, addr 2 umass0: using SCSI over Bulk-Only scsibus1 at umass0: 2 targets sd0 at scsibus1 targ 1 lun 0: <OCZ, ET1208AD, 1.0> SCSI2 0/direct removable sd0: 2000MB, 2000 cyl, 64 head, 32 sec, 512 bytes/sec, 4096000 sec total Looks like sd0 is attached to the EHCI controller. On DragonflyBSD, same h/w, I get 13MB/s when I use ehci .. -- [EMAIL PROTECTED]: /usr/src/sys/i386/conf (11:09) -- # dd if=/dev/da0 of=/dev/null bs=8192000 count=100 100+0 records in 100+0 records out 819200000 bytes transferred in 59.371990 secs (13797752 bytes/sec) when I use uhci on Dragonfly, I get - -- [EMAIL PROTECTED]: /home/atrens (11:07) -- # dd if=/dev/da0 bs=8192000 of=/dev/null count=100 ^C5+0 records in 5+0 records out 40960000 bytes transferred in 45.750635 secs (895288 bytes/sec) which is still double what I'm seeing on OpenBSD 3.7!!!! Hope it's something dumb on my side (and therefore easy to fix) :( ... Andrew.
