Large receive offload
computer networking, large receive offload is a technique for increasing inbound throughputof high-bandwidth network connections by reducing CPU overhead. It works by aggregating multiple incoming packets from a single stream into a larger buffer before they are passed higher up the networking stack, thus reducing the number of packets that have to be processed. In Linux, it is generally used in conjunction with the New API(NAPI) to also reduce the number of interrupts.
According to benchmarks, even implementing this technique entirely in software can increase network performance significantly.cite news |author=Jonathan Corbet |date=
2007-08-01|publisher= LWN.net|title=Large receive offload |url=http://lwn.net/Articles/243949/ |accessdate=2007-08-22 ] [cite mailing list |author=Andrew Gallatin |title=lro: Generic Large Receive Offload for TCP traffic |mailinglist=linux-kernel |date= 2007-07-25|url=http://lkml.org/lkml/2007/7/25/313 |accessdate=2007-08-22 ] As of April 2007, both the Linux kerneland FreeBSDsupport LRO for TCP in software only.
Large segment offload(LSO)
TCP Offload Engine(TOE)
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