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arXiv 1906.07415cs.NI
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Web优化协议栈的性能透视:TCP + TLS + HTTP/2与QUIC

A Performance Perspective on Web Optimized Protocol Stacks: TCP+TLS+HTTP/2 vs. QUIC

Konrad Wolsing, Jan Rüth, Klaus Wehrle, Oliver Hohlfeld

摘要:

QUIC和TCP的现有性能比较将优化的QUIC与未优化的TCP堆栈进行了比较。通过忽略QUIC中固有的可用TCP改进,比较并不能揭示当前Web堆栈的性能。在本文中,我们可以证明,调整TCP参数是不可忽视的,直接产生显着的改善。尽管如此,QUIC仍然优于我们调整过的TCP变体。这种性能优势主要是由于QUIC在连接建立期间减少了RTT设计,以及在有损网络的情况下,由于其能够规避线头阻塞。

英文摘要:

Existing performance comparisons of QUIC and TCP compared an optimized QUIC to an unoptimized TCP stack. By neglecting available TCP improvements inherently included in QUIC, comparisons do not shed light on the performance of current web stacks. In this paper, we can show that tuning TCP parameters is not negligible and directly yields significant improvements. Nevertheless, QUIC still outperforms even our tuned variant of TCP. This performance advantage is mostly caused by QUIC's reduced RTT design during connection establishment, and, in case of lossy networks due to its ability to circumvent head-of-line blocking.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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