O'Reilly logo

Data Architecture: A Primer for the Data Scientist by W.H. Inmon, Dan Linstedt

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

9.1

Operational Analytics

Abstract

At the heart of success in the operational environment is transaction response time. Transactions are at the heart of many businesses and when the computer malfunctions, the business suffers. The journey a transaction has to take is a long journey through the computer. The single largest impediment to good performance is the input and output (I/O) operation. When the I/O operation is executed, the computer operates at mechanical speeds, not electronic speeds. The effect of I/O on performance is especially important in the face of a program that has to do lots of I/Os. When one transaction in the job stream has to do lots of I/Os, queue time can result. When queue time becomes a factor, a transaction sits ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required