16.10 - CPU Disk Ratio - Teradata Workload Management

Teradata Database Workload Management User Guide

prodname
Teradata Workload Management
vrm_release
16.10
created_date
June 2017
category
Administration
User Guide
featnum
B035-1197-161K

The CPU Disk Ratio exception detects requests that have an unusually high ratio of CPU use versus logical I/Os. One example of this is an accidental unconstrained product join on a very large table. This metric is also called the product join indicator (PJI). Other legitimate requests, such as full table scans, can also be CPU-intensive, however.