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Deploying Virtual Servers
Compared to the original configuration for IP-address-based virtual servers with
one listen socket on ANY:80, the configuration with multiple listen sockets may
give you a minimal performance gain because the server does not have to find out
the address the request came in on. However, using multiple listen sockets also
results in additional overhead (memory and scheduling) because of the additional
acceptor threads.
Example 4: Mass Hosting
Mass hosting is a configuration in which you enable many low-traffic virtual
servers. For example, an ISP that hosts many low-traffic personal home pages
would fall into this category.
The virtual servers are usually URL-host-based and are in one of multiple virtual
server classes, depending on the level of service provided. For example, you could
have one class that allows only static content, and another one that allows static
content plus CGIs.
Chapter 13
Using Virtual Servers
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