10.3.6 Event and Performance chart tabs area (Performance chart tab selected)

Organization of this subsection

(1) Window configuration
(2) Window description
(3) Supplemental notes

(1) Window configuration

[Figure]

(2) Window description

The Performance chart tab is selectable only when you have selected a monitored target for a monitored service in the Services area or the Service performance information area.

You cannot display a performance chart for a system performance monitoring item.

The Performance chart tab displays for each monitoring item a line graph of the service performance of the selected monitored target of the monitored service. The display is updated every three seconds.

The following table lists the items that are displayed:

No.	Item	Description
1	`X` - `Y` - `Z`	This area displays the names of the service group, monitored service, and monitored target for which performance charts are being displayed. `X` is the name of the service group, `Y` is the name of the monitored service, and `Z` is the name of the monitored target.
2	Display interval pull-down menu	Use this pull-down menu to select the interval to be used for aggregating the data to be displayed on the performance charts. The following values can be selected (the default is 1 minute): 1 minute 3 minutes 5 minutes
3	Troubleshoot button	Clicking this button displays the Troubleshoot window for the monitored target of the monitored service. You can check the past status of the monitored target of the selected monitored service. For details about how to check the past status, see 4.4.2 Checking past data.
4	Performance charts	This area displays performance charts for the selected monitored target of the monitored service. Performance charts for the following monitoring items can be displayed: Avg. response (in ms) Throughput (per sec) Error rate (%) The following values can be plotted and displayed as line graphs on each performance chart: Measured Threshold^#1 Baseline^#2 Error Predict. (upper limit)^#2 Error Predict. (lower limit)^#2 A legend showing the meaning of each graph line is generated and displayed on the right side of a performance chart. Use the Select items to be displayed dialog box to select the values to be plotted and displayed. Click the legend to display the Select items to be displayed dialog box. Select the check boxes for the items whose values you want to have plotted and displayed, and then click the Settings button. The values for Measured, Threshold, and Baseline are displayed by default. Each graph line is displayed based on values aggregated over the time period set in the Display interval pull-down menu.
5	Performance chart details	Details are displayed when you hover the cursor on a graph line on a performance chart. The following items are displayed: Type of values plotted for the graph line Date and time of the value where the cursor is hovered, in the format `YYYY/MM/DD` `hh:mm:ss` (`year/month/date` `hour:minute:second`) Value at the point where the cursor is hovered

#1: This is displayed if you have set SLO monitor settings in the Settings window.
#2: This is displayed if you have set Error Predict. settings in the Settings window.

Real-time Monitor window (performance chart baseline)

Note that Baseline will not be displayed until the number of days since the start of monitoring has reached the Days till start value that was set under Error Predict. settings in the Monitor settings area of the Settings window. For details about the Days till start setting in the Settings window, see 3.2.7 Setting up the monitoring items for service performance.
If there is no information for a specific time period (for example, if there is a period during which no data was stored because monitoring of the relevant monitored service had stopped), the applicable lines on the performance chart will not be displayed.
From one hour before the end of daylight saving time until daylight saving time ends, the time is not displayed along the horizontal axis. In this case, check the time by moving the cursor over a line graph on the performance chart.

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(3) Supplemental notes

On occasion, there might be a time lag of a few seconds to several tens of seconds before information is displayed in the Service performance information area and the Event and Performance chart tabs area.
If the system running ITSLM experiences heavy load conditions, it might delay display of the performance charts in the Performance chart tab. If this occurs, select 3 minutes or 5 minutes in the Display interval pull-down menu.

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