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Date:      Fri, 12 May 2017 05:16:00 +0000
From:      bugzilla-noreply@freebsd.org
To:        freebsd-usb@FreeBSD.org
Subject:   [Bug 219220] syscalls (ioctls) on USB devices are very slow
Message-ID:  <bug-219220-17-171APq5UZo@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-219220-17@https.bugs.freebsd.org/bugzilla/>
References:  <bug-219220-17@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D219220

--- Comment #22 from Matthias Apitz <guru@unixarea.de> ---
(In reply to Hans Petter Selasky from comment #21)

I did so but this does not give any visible change in the problem:

root@c720-r314251:/home/guru # sysctl -a | grep enumeration
hw.usb.disable_enumeration: 0
dev.uhub.2.disable_enumeration: 1
dev.uhub.1.disable_enumeration: 0
dev.uhub.0.disable_enumeration: 0

root@c720-r314251:/home/guru # usbdump -i usbus0
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel

root@c720-r314251:/home/guru # usbdump -i usbus1
07:13:47.895287 usbus1.2
DONE-CTRL-EP=3D00000080,SPD=3DHIGH,NFR=3D0,SLEN=3D0,IVAL=3D0,ERR=3DTIMEOUT
07:13:47.962218 usbus1.2 SUBM-CTRL-EP=3D00000080,SPD=3DHIGH,NFR=3D2,SLEN=3D=
8,IVAL=3D0
07:13:52.863603 usbus1.2
DONE-CTRL-EP=3D00000080,SPD=3DHIGH,NFR=3D0,SLEN=3D0,IVAL=3D0,ERR=3DTIMEOUT
07:13:52.926434 usbus1.2 SUBM-CTRL-EP=3D00000080,SPD=3DHIGH,NFR=3D2,SLEN=3D=
8,IVAL=3D0
^C
4 packets captured
4 packets received by filter
0 packets dropped by kernel

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