How much can you improve network throughput with a high-end NIC?

Thu, 10 Apr 2008 15:00:00 GMT
What sort of impact can you expect from switching a machine from the Gigabit Ethernet NIC that come on its motherboard to a higher-end Intel desktop NIC? I benchmarked two common gigabit NICs found on motherboards against two Intel PCIe desktop gigabit NICs, targeting the specific purpose of accessing an NFS share over the network. The short version: throughput for sequential read/write operations didn't improve much, but latency was much better, allowing anything that needs a network round trip, like create, delete, and seek, to work much faster.

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