On Mon, Sep 28, 2009 at 08:49:21AM +0200, Hans Petter Selasky wrote: > > For USB HDD: > > > > %sysctl hw.usb.ehci.debug=15 > > hw.usb.ehci.debug: 0 -> 15 > > %date; dd if=/dev/zero bs=64k of=/dev/da0 count=100; date > > Mon Sep 28 11:25:26 KRAST 2009 > > 100+0 records in > > 100+0 records out > > 6553600 bytes transferred in 14.912198 secs (439479 bytes/sec) > > Mon Sep 28 11:25:43 KRAST 2009 > > > > The log is half-megabyte and is available here (13KB compressed): > > > > http://www.grosbein.pp.ru/ehci.log.gz > > I don't see any timeouts in there. You need to run the test until you see > something about "timeout".
It's so strange... While hw.usb.ehci.debug=15 idle periods are very seldom, iostat shows nearly constat (but very slow) data rate: KB/t tps MB/s 64.00 9 0.57 64.00 9 0.57 64.00 9 0.57 64.00 9 0.57 64.00 9 0.57 No 'timeout' word in the log. It seems that debugging changes something. Eugene Grosbein _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "[email protected]"
