Tuning TCP for the Web

Jason Cook (Fastly)
Location: E146
Average rating: ****.
(4.57, 7 ratings)

The performance of the network underlying our applications can have a dramatic effect on the experience of our users. This session will cover tuning several aspects of your application and the underlying TCP stack to deliver solid performance over the public internet.

The topics of focus will be:

  • The accept loop and the pain of a dropped SYN
  • Tuning TCP Slow Start for short lived connections
  • What you can do at the host level about a DoS
  • TCP offload engines and the unexpected tradeoffs
  • TIME_WAIT and the worst advice ever
  • SSL, keepalive, and cheating the speed of light
Photo of Jason Cook

Jason Cook


Jason is an ops guy with a dev bent. Sometimes compared to a norse god, he loves building services and is convinced you can never have enough metrics. At Fastly he is working to deliver the fastest and most reliable CDN on the planet. Before Fastly, he was in operations at Wikia, a top 50 website.

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Picture of Al Lefebvre
Al Lefebvre
07/30/2013 6:29am PDT

Is there any way we could get the presentation slides on here?


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