The Performance Monitor displays a collection of statistics for one or more participating nodes. Statistics display in a dynamic chart in real time.
The performance monitor can be accessed at two different levels:
Multiplex level – You can monitor only one statistic, across multiple servers.
Server level – On a single server or a multiplex server, you can monitor up to ten statistics at a time.
Monitoring performance at the multiplex level
Click the multiplex name in the Sybase Central tree view, and switch to the Performance Monitor tab.
Monitoring performance at the server level
Click the server name in the Sybase Central tree view, and switch to the Performance Monitor tab.
You can change the type or contents of the performance monitor graphs.
Configuring data collection rates
The Configure Collection Rates dialog is only available for the server-level performance monitor. This dialog changes the rates at which statistics are collected. When the performance monitor displays, a multi-threaded data collection engine collects monitored statistics at two different rates, based on expensiveness of the statistics. Less-expensive statistics are collected more frequently, while more-expensive statistics are collected less frequently.
Click the server name in the Sybase Central tree view, and switch to the Performance Monitor tab.
Right-click the chart area.
Select Configure Collection Rates.
Select the rates in seconds for statistics collection.
To reduce the impact on server performance, increase the rate values so that statistics are collected less frequently.
Click OK to save change.
Changing statistics to monitor
This dialog behaves differently for server-level monitoring and multiplex-level monitoring:
When you launch this dialog from the server-level performance monitor (the server can be a single server or a multiplex server), you can select up to ten statistics to monitor at a time.
When you launch this dialog from the multiplex-level performance monitor, you can only monitor one statistic at a time.
Click the multiplex and switch to the Performance Monitor tab.
In the Performance Monitor tab, right-click the chart area.
Select Change Statistics.
Choose statistics to monitor. “Monitoring performance statistics” lists all available statistics, in case you do not want to scroll the display to view them.
To save any changes, click OK.
The “Change servers to monitor” dialog is only available for the multiplex-level performance monitor.
Click the multiplex and switch to the Performance Monitor tab.
Right-click the Performance Monitor.
Select Change Servers.
Select the check box for each server to monitor. Clear the check box of servers not to be monitored.
To save any changes, click OK.
You can save the graph in the topology view as a .JPEG file.
You can save the chart as a .JPEG image file.
Right-click the Performance Monitor chart.
From the popup menu, select Save Chart As.
Specify a file name for the .JPEG file.
Click Save.
You can print the performance monitor chart.
Right-click the Performance Monitor chart.
From the popup menu, select Print Chart.
Review your print options and print the page to the desired printer.
You can choose between time-series, 2-D bar, and 3-D bar chart view.
Right-click the Performance Monitor chart.
From the menu, select Switch Chart View.
Select either Time Series Chart, Bar Chart 2-D Vertical, or Bar Chart 3-D Vertical.
To change chart settings and chart refresh (monitor GUI heartbeat) rate.
Right-click the performance monitor chart area.
Select Customize Chart.
The Customize Chart dialog has these components:
Time Window – Appears only if the chart is a Time Series chart. Specify the period of time during which the data is displayed. The minimum value is 1 minute. The maximum value is 240 minutes (4 hours).
Chart Refresh Rate – Specify how often the data in the chart is refreshed, in seconds. The value also shows at the bottom of the Performance Monitor panel.
Real vs. Normalized Value – Real Value (the default) reflects actual data. Normalized Value scales chart data into a fixed range. This option is for display purposes only, so that statistics with different ranges display better in one chart.
Legend – Select to display or hide the legend.
To save any changes, click OK.
