On Wed, 10 Jun 2009 15:08:17 -0700 Aaron Stellman <z...@x96.org> wrote: > On Wed, Jun 10, 2009 at 11:21:21PM +0200, Thomas Pfaff wrote: > > Is anyone else experiencing this? Is the problem on my side, or does > > OpenBSD not yet support High Speed USB transfers? > > umass1 at uhub9 port 1 configuration 1 interface 0 "Jabil Circuit > Seagate External Drive" rev 2.00/3.00 addr 6 > umass1: using SCSI over Bulk-Only > scsibus3 at umass1: 2 targets, initiator 0 > sd4 at scsibus3 targ 1 lun 0: <Seagate, External Drive, > SCSI0 0/direct > fixed > sd4: 152627MB, 512 bytes/sec, 312581808 sec total > > OpenBSD -current: > # dd if=/dev/zero of=/dev/rsd4c skip=1698814 bs=16k count=7200 > 7200+0 records in > 7200+0 records out > 117964800 bytes transferred in 9.004 secs (13100868 bytes/sec) > > Linux: > # dd if=/dev/zero of=/dev/rsd4c skip=1698814 bs=16k count=7200 > 7200+0 records in > 7200+0 records out > 117964800 bytes (118MB) copied, 7.08758 s, 16.6 MB/s
$ dmesg | tail -5 umass0 at uhub0 port 1 configuration 1 interface 0 " USB FLASH DRIVE" rev 2.00/1.00 addr 2 umass0: using SCSI over Bulk-Only scsibus2 at umass0: 2 targets, initiator 0 sd0 at scsibus2 targ 1 lun 0: <, USB FLASH DRIVE, PMAP> SCSI0 0/direct removable sd0: 7872MB, 512 bytes/sec, 16121856 sec total $ usbdevs addr 1: EHCI root hub, Intel addr 2: USB FLASH DRIVE, addr 1: EHCI root hub, Intel addr 1: UHCI root hub, Intel [...] OpenBSD-current: $ sudo dd if=/dev/zero of=/dev/rsd0c bs=16k count=7200 7200+0 records in 7200+0 records out 117964800 bytes transferred in 84.307 secs (1399217 bytes/sec) $ sudo dd if=/dev/rsd0c of=/dev/null bs=16k count=7200 7200+0 records in 7200+0 records out 117964800 bytes transferred in 7.521 secs (15684033 bytes/sec) Linux: $ sudo dd if=/dev/zero of=/dev/sdb bs=16k count=7200 7200+0 records in 7200+0 records out 117964800 bytes (118 MB) copied, 8.54595 s, 13.8 MB/s $ sudo dd if=/dev/sdb of=/dev/null bs=16k count=7200 7200+0 records in 7200+0 records out 117964800 bytes (118 MB) copied, 4.31093 s, 27.4 MB/s Apparently something fancy going on with my system ...
