Configuring HP WebQoS
Modifying Configuration Files Before Start-Up
weighted CPU% = (MonitorCPUWeight% * current CPU) + [(100 - MonitorCPUWeight)% * previous CPU]
For example, if you set the MonitorCPUWeight to 20, the current CPU utilization is 60, and the previous CPU utilization is 50, the weighted CPU utilization is (20% * 60) + [(100 - 20)% * 50] or 52%.
If you want to monitor the current CPU utilization only, set this parameter to 100.
The MonitorInterval parameter determines how often the weighted CPU utilization is calculated (default is every 5 seconds).
If you modify MonitorCPUWeight, you must restart the SCA and your web server.
•MonitorInterval - Default: 5 seconds
How often, in seconds, threshold policies are monitored. The minimum value is 5 seconds. If you change the value, you must restart the web server.
•MonitorResponseTimeWeight - Default: 50%
Percentage of the current response time used to calculate the weighted response time. The weighted response time is based on the current and previous (last measured) response time:
weighted response = (MonitorResponseTimeWeight% * current response time) + [(100 - MonitorResponseTimeWeight)% * previous response time]
For example, if you set the MonitorResponseTimeWeight to 20, the current response time is 3 seconds, and the previous response time is 2 seconds, the weighted response time is (20% * 3) + [(100 - 20)% * 2] or 2.2 seconds.
If you want to monitor the current response time only, set this parameter to 100.
The MonitorInterval parameter determines how often the weighted response time is calculated (default is every 5 seconds).
•NumOfDeferredSessionsPerMinute - No default
The number of sessions that can be deferred per minute. If the value is greater than 60, then the parameter
NumOfDeferredSessionsPerSecond automatically increases.
•NumOfDeferredSessionsPerSecond - Default: 1
28 | Chapter 3 |
