Channel Performance Workspace
Use the Channel Performance workspace to view performance information related to the monitored channels in the IBM® MQ (WebSphere® MQ)environment. Based on the information provided, you can make changes to improve performance, set up situations, and verify that changes made are improving performance.
A channel provides a communications link between two queue managers (running on the same or different systems) and shields application programs from having to deal with the complexities of a network's underlying protocols. A channel consists of a transmission queue, a message channel agent (communications program), and a communications link.
Note that statistics are not collected from client connection channel definitions and therefore these are not listed in any of the Channel Performance workspaces.
The IBM MQ Monitoring agent also provides recent and historical versions of this workspace. You can view a recent snapshot of report data or up to 24 hours of historical data for each component of the workspace.
Predefined views
The Channel Performance workspace includes the following predefined views:
- Channel Performance This view displays a list of monitored
channels. Select a channel in this view to display its individual
performance statistics.
To view the activity of all monitored channels on a selected queue manager right-click the Channel Performance item under the selected queue manager in the Navigator Physical view and select
. If your system has a high volume of traffic, or uses different types of queues or different message priorities, you might need to define multiple channels to handle this.Use this view to monitor the depth of the transmission queue. If this becomes very deep and remains so for a long time, consider assigning more channels to the queue to improve performance. Use the information related to sequence numbers and logical units-of-work when performing channel recovery or restart operations.
- Channel Performance Summary This view contains a bar chart showing, by defined type, the total number of active and inactive monitored channels running on the selected queue manager.
- Transmission Rates This view shows, as a bar chart, the average transmission rates of each of the selected monitored channels.
For more information on the attributes listed in the table of this workspace, see Channel Statistics attributes.
Predefined links
You can link to the following workspaces from the Channel Performance workspace:
- Recent Channel Performance
- Channel Parameters
- Historical Channel Performance
- Channel Status
- Channel Summary
- Channel Summary by Connection Name