Optimizing TLS Record Size & Buffering Latency - igvita.com
By Ilya Grigorik on October 24, 2013 TLS record size can have significant impact on the page load time performance of your application. In fact, in the worst case, which unfortunately is also the most common case on the web today, it can delay processing of received data by up to several roundtrips! On mobile networks, this can translate to hundreds of milliseconds of unnecessary latency. The good
Latency: The New Web Performance Bottleneck - igvita.com
By Ilya Grigorik on July 19, 2012 If we want a faster browsing experience then reducing the round trip time (RTT) should be near the top of our list. Or, as Mike Belshe put it: more bandwidth doesn't matter (much). Now, let's be clear, higher bandwidth is never a bad thing, especially for use cases that require bulk transfer of data: video streaming, large downloads, and so on. However, when it co
なぜ QUIC や SPDY が生まれたのか ? - Block Rockin’ Codes
Intro Google が SPDY の開発を始めたのは 2009 年で、 2012 年に HTTP2.0 のドラフトとして採用されたあたりからちょっと話題になりました。 翌 2 月には新たなプロトコル QUIC の存在が Chromium のソースからリークしたのですが、しばらくは音沙汰なく。 6 月に入ってやっと Google から公式アナウンスとドキュメント類が出ました。 去年から今年にかけて立て続けに出てくる新しいプロトコルの話。 なぜ今 Web のプロトコルが見直されるのか？ 何が問題で、なぜ Google はそれらを作り変えるのか？ SPDY や QUIC は Google の独自プロトコルだけど、それは本当にただの独自プロトコルで終わらせていいのか？ 20% ルールで作ってみた Play プロジェクトでしかないのか？ こうした新しい動きには、かならず「それまで」と「今」を踏
Network Congestion and Web Browsing - Insouciant
Recently, there was discussion on the ietf-http-wg mailing list about the current HTTP/2.0 draft’s inclusion of a SPDY feature that allows the server to send its TCP congestion window (often abbreviated as cwnd) to the client, so it can echo it back to the server when opening a new connection. It’s a pretty interesting conversation so I figured I’d share the backstory of how we got to where we are
What to Expect from HTTP/2
Mark Nottingham (@mnot) Why Change HTTP? The Web Has Changed. Heavier and More Interactive HTTP Archive Performance = Attention = $$$ Courtesy Ilya Grigorik Mobile Is Here Courtesy Ilya Grigorik Web Engineering Today: Current Perf Techniques Spriting Inlining #globalheader { background:#707070; background: -o-linear-gradient(top, rgba(0, 0, 0, .2) 0, rgba(0, 0, 0, 0) 5%, rgba(0, 0, 0, 0) 97%, rgba
Velocity: TCP and the Lower Bound of Web Performance | High Performance Web Sites
July 13, 2010 7:08 pm | 13 Comments John Rauser (Amazon) was my favorite speaker at Velocity. His keynote on Creating Cultural Change was great. I recommend you watch the video. John did another session that was longer and more technical entitled TCP and the Lower Bound of Web Performance. Unfortunately this wasn’t scheduled in the videotape room. But yesterday Mike Bailey contacted me saying he h
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Optimizing Your Network Stack for Optimal Mobile Web Performance