https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=244356
--- Comment #16 from [email protected] --- I'll be following this. With the USB DA device from https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235897 dd and rsync transfers to UFS and to ZFS seem to stall, after a while. A 120-something transfer speed of a large generated file (dd if=/dev/urandom of=foo bs=1M count=1048576) stalls, drops to 10-something transfer speed, stalls again and drops to KB/s speeds. After interrupting rsync, I ran 'time sync', which takes 'real 2m15.632s'. Because of the dd observation, perhaps 'disk cache' can't keep up with the amount of writes? rsync to UFS on USB 2.0 storage: sent 1,074,155,802 bytes received 76 bytes 9,633,685.00 bytes/sec rsync to UFS on USB 3.0 storage: sent 1,074,155,802 bytes received 76 bytes 2,438,492.35 bytes/sec I can test patches on 13-CURRENT. -- You are receiving this mail because: You are the assignee for the bug. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-usb To unsubscribe, send any mail to "[email protected]"
