Guy’s Pod » Blog Archive » HTTP Pipelining – Not So Fast…

Does HTTP Pipelining really make a difference to page loading speeds? Tests and graphs abound. Note: If you want to switch on this feature in Chrome, enable it in the ‘about:flags’ section. Worth a read in any case.

“HTTP Pipelining ‘should’ make websites faster. Especially on a high-bandwidth, high-latency network, logic implies pages should load faster. However, in all of these tests, I had a hard time proving that in real tests… One possible explanation is “Head of Line Blocking”. This is the classic fear associated with pipelining, where slow resources hold up a queue, slowing down everyone behind them. It’s hard to automatically assess if head of line blocking occurred (perhaps better tooling in the future will make it possible), though perhaps the “aggressive” pipelining results hint that it affects the result. “

Guy’s Pod » Blog Archive » HTTP Pipelining – Not So Fast…(Nor Slow!)

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