On Wednesday 11 July 2007, Mark Seger wrote: > I don't know if what I've been proposing requires any rearchitecting as > I see is as something local to each node. Specificially, and there is > already an implementation of this in an earlier voltaire stack, is to > export wrapping HCA counters to /proc. The module that does this > read/clears the counters on every access but since no local applications > are accessing the counters directly, clearing them doesn't hurt anyone. > Alas, anyone else who wants to query the counters will find them reset. > > The other side benefit of exporting these counters is such a way is now > lots of others can collect/report this info. In other words is someone > chose to add IB stats to sar, it would become very easy to do!
I for one would be very happy to have this option. To be able to get simple but real-time data on a specific node. I'm amazed that the counters are non-wrapping or even that they are 32-bit... /Peter > If this is the type of thing people are interested in, I might be able > to supply some code to do it.
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