Date: Wed, 22 Feb 2006 21:43:46 +1300 From: Andrew Thompson <thompsa@freebsd.org> To: freebsd-net@freebsd.org Subject: Re: ALTQ slowness Message-ID: <20060222084346.GB29653@heff.fud.org.nz> In-Reply-To: <20060222054441.GA29653@heff.fud.org.nz> References: <20060222054441.GA29653@heff.fud.org.nz>
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On Wed, Feb 22, 2006 at 06:44:41PM +1300, Andrew Thompson wrote:
> I am having a problem where it appears that the queue speed is 1/10th of
> the desired number. I have this simple setup on a bridge and can not get
> any more than about 1700 Bps with a http download (roughly 12Kbits).
>
> altq on sis0 cbq bandwidth 256Kb queue { std_in }
> queue std_in bandwidth 128Kb cbq(default)
>
> pass out on sis0 proto tcp from any to any queue std_in
To add further information, it now appears to be caused by the sis
driver. Here is iperf tests with a net4801+sis(4) and pentuim3+xl(4)
using the above pf config.
xl driver
[ 4] 0.0-13.2 sec 200 KBytes 124 Kbits/sec
[ 4] 0.0-23.1 sec 352 KBytes 125 Kbits/sec
[ 6] 0.0-32.7 sec 496 KBytes 124 Kbits/sec
sis driver
[ 4] 0.0-49.8 sec 296 KBytes 48.7 Kbits/sec
[ 6] 0.0-49.7 sec 296 KBytes 48.8 Kbits/sec
[ 4] 0.0-49.6 sec 296 KBytes 48.9 Kbits/sec
Andrew
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