http/latency #208
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如图 2-1 请求阶段分析所示,这些阶段共需要 4 个 RTT(Round-Trip Time,往返时间)[1] = 1 RTT(DNS Lookup,域名解析)+ 1 RTT(TCP Handshark,TCP 握手)+ 2 RTT(SSL Handshark,SSL 握手)+ 1 RTT(Data Transfer,HTTP 内容请求传输)。 |
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表 2-3 中,关于 TTFB 的描述“服务器从接收请求到开始到收到第一个字节的耗时”,读起来感觉有歧义,缺少了主语。读起来像“......服务器收到第一个字节的耗时”。 而实际上是“......到客户端收到第一个字节的耗时”。 |
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单词拼写错误,Handshark -> Handshake |
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http/latency
构建大规模高可用的分布式系统
https://www.thebyte.com.cn/http/latency.html
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