[openib-general] basic IB doubt

[Greg Lindahl]

On Thu, Aug 24, 2006 at 03:13:33PM -0700, Woodruff, Robert J wrote:

> If the feature gives them a huge advantage in performance (and it
> does) and all of the hardware vendors that they deal with already
> implement it, then yes, they will force, by defacto standard that
> all other newcomers implement it or face the fact that no one will
> buy their hardware. It seems like that is what is happening in this
> case.

In this case the feature reduces performance on one HCA and increases
it on another. Which shows why it's a bad idea to pick features based
on a single implementation.

But you're still confusing practicality and theory. I can see why it's
pratical sense for newcomers to implement this new, performance-
reducing feature. But why is it theoretically good? And shouldn't it
be added to the standard, before all the poor iWarp people discover
the hard way that they need it?

-- greg