[ofa-general] Multicast Performance

[Hal Rosenstock]

Hi Marcel,

On Thu, 2008-05-29 at 17:30 +0200, Marcel Heinz wrote:
> Hi Hal,
> 
> Hal Rosenstock wrote:
> > On Thu, 2008-05-29 at 16:32 +0200, Marcel Heinz wrote:
> >>How can I find out the static rate applied to the multicast QP?
> > 
> > Given the above, I don't see this as a likely suspect but you should be
> > able to query the ah used for sending and look in the ah_attr for
> > static_rate.
> 
> Well, there is no query_ah function.

I was looking at kernel space not user space. Not sure about user space
but I think it's moot.

> The ah I use for sending was
> created with static_rate 0. The manpage doesn't give any explanation
> what static rate is meant to be, but after playing around with it I
> guess that it is what the spec calls "Inter Packet Delay", right?

Yes.

>  So 0 should be the correct choice.

Yes.

This isn't the issue and I'm not sure what is. Sorry.

-- Hal

> There is also the ah_attr field of the ib_qp_attr struct which I could
> query, but this field is not valid for datagram QPs.

> Regards,
> Marcel