Date: Fri, 11 Apr 2014 19:31:27 +0930 From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Hans Petter Selasky <hps@selasky.org> Cc: freebsd-usb@freebsd.org Subject: Re: USB 3 devices not reliably connecting at 5Gbps Message-ID: <B7F47BDB-FA99-4A03-9430-532F3DBA2F5B@gsoft.com.au> In-Reply-To: <10D8152C-0013-46CD-B1CF-6A5BA41D1B3A@gsoft.com.au> References: <A9616810-7BD9-49FC-BFA7-44206E4CCAC1@gsoft.com.au> <53478D5B.3090205@selasky.org> <ACC91511-A630-4262-AFE4-441AA154E405@gsoft.com.au> <5347A7C2.9000704@selasky.org> <10D8152C-0013-46CD-B1CF-6A5BA41D1B3A@gsoft.com.au>
next in thread | previous in thread | raw e-mail | index | archive | help
--Apple-Mail=_1F94C61F-B0B2-49DA-9FB3-EB90CC48C0DD Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 On 11 Apr 2014, at 19:27, Daniel O'Connor <doconnor@gsoft.com.au> wrote: > On 11 Apr 2014, at 17:58, Hans Petter Selasky <hps@selasky.org> wrote: >> On 04/11/14 09:29, Daniel O'Connor wrote: >>>=20 >>> On 11 Apr 2014, at 16:06, Hans Petter Selasky <hps@selasky.org> = wrote: >>> Finally, I ran systat -vmstat 1 while running the test and I see = 4000 IRQ/sec on the xhci device, not 8000 as your comment above would = suggest. >>=20 >> Looks like a bug there. Can you try this patch: >>=20 >> http://svnweb.freebsd.org/changeset/base/264340 >=20 > That gives a definite improvement to 187MB/sec, thanks! Using a usb_fifo_* based driver I get over 220MB/sec. That should tide me over for a while :) If you're in Adelaide some time I owe you some beers. -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C --Apple-Mail=_1F94C61F-B0B2-49DA-9FB3-EB90CC48C0DD Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org iD8DBQFTR7135ZPcIHs/zowRArQOAJ9beR9hXDYgf9JXku5ENGLHvU5OVgCeLeff VskHjG+/eBt9+FYb9eyk7DA= =jr01 -----END PGP SIGNATURE----- --Apple-Mail=_1F94C61F-B0B2-49DA-9FB3-EB90CC48C0DD--
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?B7F47BDB-FA99-4A03-9430-532F3DBA2F5B>