Date: Tue, 8 Jul 2008 11:57:49 +0100 From: Joe Kuan <joe.kuan@itrinegy.com> To: <freebsd-net@freebsd.org> Subject: Help: FreeBSD 6.3 - em driver & taskqueue & priority Message-ID: <C8C00B39-0521-4032-BEF2-96FB99ACE1D8@itrinegy.com>
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Hi all,
I have implemented an network application in kernel space and it
is working fine. The application involves 3 network interfaces that
FreeBSD 6.3 can forward mbuf between em0 and em1 in a rate 1.3 - 1.4
millions packets per second. Em2 is used for controlling the network
application.
The problem is that when em0 and em1 are transmitting in 1.3 - 1.4
millions packets per second, the em2 interface becomes irresponsive.
However, my goal is to make the kernelised network application
response as soon as a control packet arrives in em2, ie jumps the
queue ahead of all the packets in em0 and em1.
I think the problem lies on the priority set on the task structure
are all the same for all the em devices. Am I heading in the right
direction?
If not, please advise me.
Many thanks in advance
Joe
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