January 8, 20242 yr I recently bought some new gear to add 10gbe to my unraid server and pc client. I have an Intel x520 sfp+ card on both sides and are connected to each other via an spf switch. I have an nvme drive in the server which I benchmarked using the DiskSpeed docker and got 2 gigabyte per second read and 2.7 write. I also have an nvme on my Windows PC so that should not be a bottleneck. I shared the drive using the unassigned devices plugin and found the max speed I can hit is about 250MBps uploading to the server and 400MBps downloading from the server. I was expecting speeds closer to the link max at 1GBps. I installed iperf3 on the server and get around 5 Gbps or 7 Gbps with the -R flag on 1 thread. If I up the threads to 3 or more iperf3 will saturate the connection. I'm not really sure where to start. There are a ton of threads on the forum with various advice surrounding 10gbe but nothing conclusive in improving the transfer speeds. morioh-diagnostics-20240107-2002.zip
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