Chapter 10 Achieving Optimum Performance with PowerDynamo

Increasing the performance of your Web site

There are many factors that determine the speed of a Web site. For a high throughput Web site that relies on dynamically driven data, it is essential that the site be appropriately streamlined to handle the required volume. PowerDynamo delivers to users the ability to fine-tune their Web sites according to the level of performance they require and the individual characteristics of their Web site application.

There are several key areas that you can manipulate to increase the performance of a dynamic Web site:

Document cache Memory used to hold recently accessed documents so that subsequent requests of the same document do not require retrieval from the database or file system.
Scheduling Scheduling a document to execute at a certain time on a regular basis. The generated output is stored in a document and returned to all subsequent requests for the scheduled document. Data is updated each time a scheduled document is executed.
Scripts and templates The documents that hold the HTML and database queries that are used to generate dynamic content.
Response page sizing PowerDynamo can preallocate an HTTP response size page buffer for buffer appends, which is more efficient than reallocating a new buffer.
Connections PowerDynamo uses two kinds of connections--Dynamo connections, which are used to extract documents from a database-hosted Web site, and user connections, which are used to extract data from a database.