intel dca

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Intel® I/O Acceleration Technology

 

http://www.intel.com/content/dam/doc/white-paper/i-o-acceleration-technology-paper.pdf

Intel I/OAT is actually a set of technologies that each contributes to increased performance.

The features of Intel I/OAT enhance data acceleration across the computing platform:

• Intel® QuickData Technology enables data copy by the chipset instead of the CPU, to move data more efficiently through the server and provide fast, scalable, and reliable throughput.
• Direct Cache Access (DCA) allows a capable I/O device, such as a network controller, to place data directly into CPU cache, reducing cache misses and improving application response times.
• Extended Message Signaled Interrupts (MSI-X) distributes I/O interrupts to multiple CPUs and cores, for higher efficiency, better CPU utilization, and higher application performance.
• Receive Side Coalescing (RSC) aggregates packets from the same TCP/IP flow into one larger packet, reducing per-packet processing costs for faster TCP/IP processing.
• Low Latency Interrupts tune interrupt interval times depending on the latency sensitivity of the data, using criteria such as port number or packet size, for higher processing efficiency.

 

ref.

http://www.intel.com/content/www/us/en/wireless-network/accel-technology.html

 

 

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