Technical Report Number
Current network technology is bandwidth-rich but latency-poor; thus round-trip delays will dominate access latency for web traffic. We describe four new techniques that reduce the round-trips needed for web accesses. The techniques are based on the paradigm of preprocessing a web page to collect information about links and inline data in the page. Stored Address Binding almost always eliminates the DNS lookup (which can cost seconds) at the start of a transaction. In Informed Server Proxying, a server tells its client that it has cached pages referenced in a page the client just retrieved; this allows the client to retrieve the pages from its current connection, instead of creating a new connection. In Selective Link Redirect, a server can direct its client to any server that has cached a page referenced in the current document; this allows cooperating servers to balance load. Finally, Auto Inline Download allows a server to send inline data such as images and applets, without additional client requests. We describe implementations and measurements of these techniques.
Chandranmenon, Girish P. and Varghese, George, "Reducing Web Latencies Using Precomputed Hints" Report Number: WUCS-97-24 (1997). All Computer Science and Engineering Research.