John,
>
> Thank you for the response. We did some further testing last night:
>
> -We tried compiling the driver without MSI/MSI-X support, and that appeared
> to make no difference
>
> -Also, accessing the console via ssh is extremely sluggish when a stream is
> being sent, it can take 3-4 seconds to respond to a CTRL-C for example (or
> even CR), when dual 5 Mbps multicast streams are being output
>
> -The mouse is a bit sluggish on the console, not awful, but noticeably
> impacted
>
> -No cpu load reported in userspace by top
>
> -We will shut down X and retest to eliminate that and determine performance
> at the cli
>
> Stats will be forthcoming as well.
>
> -Jeff
>
I should also clarify how we access the device. We have physical console
access. Remote access for management is via eth0 on 192.168.1.0/24.
All of the multicast traffic (in/out) is on eth1 on 10.239.0.0/28.
eth0 is connected to VLAN 10 on the switch (admin/internet)
eth1 is connected to VLAN 30 on the switch (video only)
The switch is an HP Procurve 1800-24G. It is NOT IGMP aware, and thus the
multicast is broadcast to all ports on VLAN30. Flow control is enabled on
the switch ports in VLAN30.
There are no streams, other than test streams, active during the tests. The
switch is running the latest firmware and handles up to 40+ Mbps of
aggregate multicast streams without any problems. We regularly have dual SD
(~5Mbps) and dual HD (~19 Mbps) streams running concurrently without any
impairments.
Is there any value in trying an earlier kernel version or is that unlikely
the source of the problem?
Is there any value in trying to reproduce the problem using multicast
streams under Windows (we would have to install a new HD and install windows
to do this)?
-Jeff
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