16.20 - 16.50 - Skew Tab for Teradata Database - Teradata Viewpoint - Teradata Workload Management

Teradata® Viewpoint User Guide

Product
Teradata Viewpoint
Teradata Workload Management
Release Number
16.20
16.50
Release Date
July 2021
Content Type
User Guide
Publication ID
B035-2206-071K
Language
English (United States)
The Skew tab displays details about the level of skew in the query or session. The Skew tab does not display when the Delay tab is present.
Skew Information Description
Highest AMP with the highest CPU utilization or I/O count
2nd Highest AMP with the second highest CPU utilization or I/O count
3rd Highest AMP with the third highest CPU utilization or I/O count
Average AMP with the lowest CPU utilization or I/O count
3rd Lowest AMP with the second lowest CPU utilization or I/O count
2nd Lowest AMP with the third lowest CPU utilization or I/O count
Lowest Average CPU utilization or I/O count across all AMPS
Session Skew Difference between the highest and the average values
Participating AMPs Total number of AMPs participating for this session during the last session collection interval