I/O Acceleration Technology
I/O Acceleration Technology (I/OAT) is a DMA engine (an embedded DMA controller) by Intel bundled with high-end server motherboards, that offloads memory copies from the main processor by performing direct memory accesses (DMA). It is typically used for accelerating network traffic, but supports any kind of copies.
- I/OAT Home site
- Accelerating Network Receive Processing. Intel I/O Acceleration Technology // Proceedings of the Linux Symposium, 2005[dead link] (copy)
- I/OAT at LWN
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