Kianoosh Naghshineh, president and CEO of Chelsio, responded to Intel's clarification of its TOE position. This said, to summarise, that IP SAN network inerface cards (NICs) with TCP/IP Offload Engines (TOEs) do reduce CPU utilisation but the metric that matters is server application access to data time. Intel's I/O Acceleration Technology (I/O AT) reduces an application's data latency better than a TOE does in the majority of cases and almost as well as a TOE in the other, large data transfer, cases.
Naghshineh says: "It is simply incorrect by Intel to state that all TOE NICs slow an application’s access to data. The Chelsio TOE NICs are high bandwidth and low latency devices, and this has been verified in independent Veritest performance studies (http://www.chelsio.com/technology)."
"Veritest compared the end-to-end latency of several NICs to the end-to-end latency of a Chelsio TOE NIC, and the results show that the Chelsio TOE NIC decreases latency, i.e. speeds up an application’s access to data!"
(Veritest Chelsio reports can be overviewed here.)
Naghshineh continued: "If you check the Veritest reports cited above you can see that the Chelsio TOE NIC reduces CPU utilization, speeds up an application’s access to data, and increases the bandwidth for all I/O size requirements."
Techworld understands that Chelsio will soon be offering protocol offload silicon that has a zero premium for offload so it will encompass the NIC market, regardless of Intel's position.