![]() ![]() When a processor accesses memory that does not lie within its own node (remote memory), data must be transferred over the NUMA connection at a rate that is slower than it would be when accessing local memory. These platforms can utilize multiple processors on a single motherboard, and all processors can access all the memory on the board. Non-uniform memory access (NUMA) nodes are servers with more than one system bus. If you get reply’s everything works great! The “-l” parameter specifies the size of the packet, in this case we use a large packet (jumbo frame). The “-f” parameter does not allow packets to be fragmented. ![]() Our beloved Powershell can also do this for you: I don’t see a reason not to enable it, which is fairly easy: In short, jumbo frames enhance IOPS and latency by 20-30% and decrease CPU usage. I’m not going into research here, but see this blogpost for some performance tests. Jumbo Frames are always under debate, if it really makes a difference and need to be enabled. With jumbo frames, the ethernet packet can hold more data which makes data receiving more efficient as normally you would have to send 6 packets to transfer the same amount of data. When a network device gets a frame that is larger than the configured MTU, the data is fragmented into smaller frames or dropped. An Ethernet packet larger than 1500 bytes is called a jumbo frame. Traditionally, Ethernet has a maximum frame size of 1500 bytes. Part 4: Test DCB and RDMA (coming)A Jumbo Frames In this part I’m going to shown known and unknown tips and tricks that optimizes your network infrastructure. In the previous parts we’ve configured our network infrastructure with DCB and set QoS policies to ensure traffic bandwidth.
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