Problems with current web server operation

• Currently, web servers share processor resources among several requests simultaneously.
• Web users are impatient--they tend to abort page requests that do not get a response within several seconds.
• If users time out, the server wastes resources on requests that never complete--a problem especially for heavily-loaded web servers.
• Objective: decrease user-perceived latency by minimizing the number of user file requests that "time out" before completion

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