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http_2_multiplexed_conditions

The Concept​

HTTP/1.1: Single lane highway (requests wait in line)
Request 1: ████████████ (blocks everything)
Request 2:              ████████ (waits)
Request 3:                      ████ (waits)

HTTP/2: Multi-lane highway (parallel requests)
Request 1: ████████████
Request 2: ████████ (simultaneous!)
Request 3: ████ (also simultaneous!)

Benefits for Video​

  • Single connection: Reuse same TCP connection
  • No blocking: Fast requests don't wait for slow ones
  • Lower latency: No connection setup overhead
  • Video streaming: Request manifest + segments simultaneously

Performance Impact​

  • Connection setup: 1 connection vs 6+ connections
  • Loading time: 30-50% faster for multi-file scenarios
  • Mobile benefits: Especially important on high-latency networks

References