diff -r ed1c9f64298a -r 5b9d4d8641ce trace/traceviewer/com.nokia.traceviewer.help/html/tasks/viewing_traces.htm
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+
+
+
+Viewing line count and variable tracing items
+
+
+
+
Viewing line count and variable tracing items
+
Before you start
+
On the TraceViewerPropertyView, you can check the properties
+of traces the based on the rules that were defined for line count and variable
+tracing.
+
+
Line count can be used to calculate the number of occurrences for
+a certain type of trace. This may mean, for example, a trace from a specific
+component, from a certain group of a certain component, or traces that contain
+a certain text.
+
Variable tracing means that you can follow up or monitor certain
+values that occur in traces.
For example, to monitor RAM consumption in
+the Kernel, there can be the following kind of trace:
When you create
+a variable tracing rule that contains the text Kernel Memory:Initial free
+RAM;Bytes, you can view what the latest value of this variable was, as
+well as a number of its previous values.
+
+
+
For generic instructions on how to create rules and definitions, see
+instructions in Setting up rules and filters.
+
+
+
Viewing variable tracing history
+
To open the history:
+
+
Select one or more items from the list.
+
Right-click and select Open history from the menu.
+
The Variable tracing history dialog is displayed.
+
+
In the history, you can see the last n number of events of
+the variable changing. There is a timestamp (and time from the previous event),
+new value and the line number where the change happened. The Has codeline
+column indicates whether or not this item has location metadata available.
+
(Optional) To open the source code of a line that has had changes:
+
+
Select the Activate corresponding codeline box.
+
Double-click a line that shows Yes in the Has codeline column.
+
+
+
(Optional) To view the line number where changes happened:
+
+
Select the Activate corresponding trace box, if not selected already.
+
Double-click a line in the dialog and TraceViewer jumps to that line in the code.
+
+
+
+
Tip: If you close TraceViewer when you have any of the variable
+tracing rules enabled, they will get automatically enabled the next time you start TraceViewer.
