SPDY : Let's Make the Web Faster

An Experimental Application Layer Protocol by Google.

Transcript

1. SPDY Let's make the web faster A Technical Talk By Rajeev N B Rajeev N B
2. What is it ? • Experimental Application layer protocol. • Used to transport content over web with minimal latency. • Augments HTTP Protocol. • Trademark of Google.
3. Current Scenario • HTTP and TCP are the protocols of the web. • HTTP : Application layer protocol handling request / response semantics. • TCP : Transport layer protocol.
4. Drawbacks in HTTP • Single request per connection. • Exclusively has client initiated requests. • Uncompressed request and response headers. • Redundant headers. • Optional data compression.
5. Comparisons
6. Reducing Upload bytes
7. Reducing Download Bytes
8. Reducing Total packets
9. SPDY Design
10. Basic Features SPDY • Multiplexed streams. • Request Prioritization. • HTTP header Compression.
11. Advanced features • Server initiated streams. ( Server Push and Server Hint )
12. How SPDY is better ? • Achieves 50% reduction in page loading times. • Is easy to implement and Deploy. • Is server efficient. • SSL is used for security. • Bidirectional Streams.
13. What we achieve ? • SPDY sends 40% lesser packets than HTTP. • SPDY uses fewer number of TCP connections. • SPDY : More efficient use of TCP. • Faster web page loads.
14. SPDY Support Client • Chrome ( 11 and Higher) • Amazon Silk • Firefox ( >11v) • By default in Firefox 13 Server • Apache mod_spdy • erlang_spdy • node_spdy • Netty 3.3.1 • Jetty 7.6.2 • Tomcat SPDY Connector
15. Is it SPDY ? SPDY Indicators • www.devthought.com/2012/03/10/chrome- spdy-indicator/ • ckon.wordpress.com/2012/03/11/spdy- indicator-for-firefox/
16. Sites with SPDY • Twitter. • Google sites (Gmail , Google Search etc). • Wikipedia and many others.
17. For more Info • Official Page : http://dev.chromium.org/spdy/spdy-whitepaper • Wikipedia : http://en.wikipedia.org/wiki/SPDY • Google Chrome client code (OpenSource) : http://src.chromium.org/viewvc/chrome/trunk/src/net/spdy/ • SPDY draft Protocol Specification : http://dev.chromium.org/spdy/spdy-protocol/spdy-protocol-draft1
18. Thank You Q & A