~/talk

HTTP: History and Performance

Talkat Render Conference 2017 · on Thursday, 2017-03-30· [web-platform, web-performance]

Timeline of HTTP from 0.9 to HTTP/2 with concrete performance math and tools: telnet and curl demos show HTTP 0.9 is one-line only, HTTP/1.0 closes connections per request making a 21-resource page ~2.7s over HTTPS because TLS adds two round trips while HTTP/1.1 with keep-alive drops that to ~1.5s; HTTP/2 introduces binary framing and multiplexing over one connection with HPACK so header size drops 30–80%; Fastly and Wireshark tests reveal HTTP/2 can regress under packet loss, motivating QUIC over UDP.

AI-written summary · about

  1. 0:00Start
  2. 1:19Transfer Protocol
  3. 11:2150% increase in speed for secure requests
  4. 14:04plugins: new webpack.optimize.UglifyJsPlugino
  5. 18:28Multiplexing
  6. 22:4230-80% compression ratio of headers with HPACK
  7. 26:58QUIC (experimental transport layer over UDP)
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