YoungGyoun Moon is a Ph.D. candidate in KAIST under supervision of Prof. KyoungSoo Park. His research interests broadly lie
in networked systems, including host networking stack, middleboxes, and programmable dataplane. He is a recipient of
USENIX NSDI Best Paper Award in 2017. 

AG 1, AG 2, AG 3, INET, AG 4, AG 5, SWS, RG1, MMCI   Info

AG Audience

English

90 Minutes

Saarbrücken

The performance of modern key-value servers or layer-7 load balancers often heavily depends on the efficiency of the underlying
TCP stack. Despite numerous optimizations such as kernel-bypassing and zero-copying, performance improvement for TCP
applications is fundamentally limited due to the protocol conformance overhead for compatible TCP operations.

In this talk, I will introduce AccelTCP, a hardware-assisted TCP stack architecture that harnesses programmable network interface
cards (NICs) as a TCP protocol accelerator. AccelTCP can offload complex TCP operations such as connection setup and
teardown completely to NIC, which frees a significant amount of host CPU cycles for application processing. In addition, for layer-7
proxies, it supports running connection splicing on NIC so that the NIC relays all packets of the spliced connections with zero DMA
overhead. We showcase the effectiveness of AccelTCP with two real-world applications: (1) Redis, a popular in-memory key-value
store, and (2) HAProxy, a widely-used layer-7 load balancer. Our evaluation shows that AccelTCP improves their performance by
2.3x and 11.9x, respectively.

Annika Meiser

93039105

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Kaiserslautern

G26

111

SWS Space 2 (6312)

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