Using the Latency Timeline Slide Bar

The Latency Timeline slide bar is a universal slide bar for all tabs prefixed Latency. It shows the entire length of the recorded JRA file. Changing the time span or refocusing the Latency Timeline slide bar affects all latency tabs in the JRA Tool. You can also use the scroll and zoom buttons to refocus on events within the recording.

The different ways to use the Latency Timeline are described in the following topics:

To decrease the time span on a latency tab

Click and drag the handles on the sides of the Latency Timeline (Figure 16-6).

Figure 16-6 The Latency Timeline decreased

The Latency Timeline decreased

To refocus using the timeline slide bar

Drag the Latency Timeline into the desired position (Figure 16-7).

Figure 16-7 Refocus on the Latency Graph tab

Refocus on the Latency Graph tab

To move and zoom using the move and zoom buttons

Click the move buttons (left or right) to move the Latency Timeline. The scroll buttons are marked 1 in Figure 16-8.

Figure 16-8 Move and zoom buttons

Move and zoom buttons

Click the zoom in/out buttons to shorten the time span on the Latency Timeline. The zoom in/out buttons are marked 2 in Figure 16-8.
Double-click the Latency Timeline slide bar to go back to display the full length of the latency data.

To reposition the timeline slide bar

On the Menu bar, select Windows>Preferences...

The Preferences dialog box appears (Figure 16-9).

Figure 16-9 Preferences dialog box

Preferences dialog box

In the left panel, select JRockit Mission Control>Runtime Analyzer>Latency.

The Latency panel appears (Figure 16-10).

Figure 16-10 Preferences dialog box-Latency panel

Preferences dialog box-Latency panel

In the Range Selector position box, select the radio button that identifies where you want the timeline slide bar to appear; for example, if you want move the slide bar to the bottom of the tab, select Bottom.
Select either Apply (if you want to set more preferences) or OK.