On Wed, 11 Jul 2018, Olga Kornievskaia wrote: > Please excuse me if this is not the right place to post this (but > according to the MAINTAINERS list for the ethernet Mellanox MLX5 > driver this should be it). I'm having issues with the latest kernel > (4.18-rc4) and using Mellanox CX-5 cards. I'm trying to send TCP > traffic not RDMA traffic using iperf3. I've noticed issues with > performance. Upgrade to the latest rdma core package? There is a bug in libibverbs that limits throughput that was fixed recently and Mellanox has been pushing out firmware releases that finally make the NIC obey rate limitations. Together this can produce a weird set of constraints on performance. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
