> Some architectures support weak ordering in which case better > performance is possible. IB registered memory used for data can be > weakly ordered becuase the the completion queues' buffers are > registered as strongly ordered. This will result in flushing all data > related outstanding DMA requests by the HCA when a completion is DMAed > to a completion queue buffer. > This patch will allow weak ordering for data if ib_core is loaded with > the module parameter, allow_weak_ordering, set to a none zero value.
Hmm, I guess this is OK, although I wish there were a good way for users and applications to know whether the ordering of RDMA can be relied on or not. > Also, are you going to push this to 2.6.28? No, since this appeared late in the 2.6.28 merge window, it's way too late for 2.6.28 -- things need to be submitted before the merge window to have a chance of going in. We'll get some fix for Cell performance into 2.6.29. - R. _______________________________________________ general mailing list general@lists.openfabrics.org http://lists.openfabrics.org/cgi-bin/mailman/listinfo/general To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
