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O'Reilly Velocity
Web Performance and Operations
› http://velocityconf.com/
YSlow
› Best Practices for Speeding Up Your Web Site
This topic created in 4445 days ago, the information mentioned may be changed or developed.
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advancedxy Feb 28, 2014
tcp的窗口大小是自动调整的.最开始的协议是窗口大小最多是64KB.但后续的扩展添加了window scaling factor,可以越过64KB的限制.也就是说如果带宽足够和网络稳定的话,tcp的fast open终究会达到窗口最大值.其实除了这个,他们更应该修改一下cwnd(congestion window size).因为这个值默认比较小(2.6是4个seg,3.2以后默认才是10),这个也是tcp fast open的缘由(tcp传输窗口的最终大小由cwnd和rcnd中的较小值来决定).
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ptcracker Jun 17, 2014
kernel 2.6 默认的 initcwnd 是 2 不是 4
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