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Real-Time Monitoring

The Real-Time Statistics window displays a graph of real-time link activity. Real-Time Statistics is a summary of the traffic currently being recorded by the analyzer. To display the Real-Time

Statistics window, click att_5_for_337054069.png in the toolbar. An example is shown below.

att_14_for_337054069.jpeg
Real-Time Statistics window

For USB 3.2, the Real-Time Statistics window can display a SuperSpeed graph of real-time link activity. The Link Statistics are displayed on the right bottom panel in the previous screen capture. They are defined as:

  • RD: Running Disparity Errors

  • Inv Sym: Invalid 10-Bit Symbol

Refer to Error Summary for further explanation. To see a graph of traffic, you must start recording:

  1. Press att_6_for_337054069.png to start the Real-Time statistics monitor. As traffic is recorded, data is streamed in real time to this window and presented in a format of your choice.

  2. To stop the monitor, press att_7_for_337054069.png .

Real-Time Statistics Buttons

The Real-Time Statistics toolbar has buttons for changing the format of the displayed data and for exporting data:

att_8_for_337054069.png
Real-Time Statistics Buttons

The buttons have the following functions:

Table 10.10: Real-Time Statistics Buttons

Button

Functionality


Button

Functionality

saveas.png


Save As: Saves Real-Time graphs as bitmap files (*.bmp)


vertzoomin.png


Vertical zoom in

email.png


Email: Creates an email with a *.bmp file attachment of the graphs


vertzoomout.png


Vertical zoom out

print.png


Print


clickzoom.png


Click and Drag zoom: Click diagonally to select and zoom in on part of the graph

fullscreen.png


Full Screen


sync.png


Sync and Graph areas: If two or more graphs are displayed, this button synchronizes the graphs to one another. Once synchronized, the positioning slider of one graph moves the other graphs.

syncviews.png


Synchronize with other Views. Synchronizes the View windows so that a move in one window repositions the other. See Link Tracker Buttons.


graph.png


Graph Areas: Presents options for displaying additional graphs of data lengths, packet lengths, and percentage of bus utilized.

settings.png


View Settings: Opens a sub-menu with options for formatting the display. See View Settings Menu.


att_6_for_337054069.png

Start. Starts the Real-Time Monitor.

 

hozoomin.png


Horizontal zoom in


horzoomout.png


Horizontal zoom out


att_7_for_337054069.png

Stop Real-Time Monitoring.

reset.png


Reset graphs.


To clear the counters in the “Statistics Accumulation” area, click the Restart att_9_for_337054069.png button.

To save a snapshot Microsoft Excel .csv file of the data before clearing the values, click the Save and Restart att_10_for_337054069.png button.

The file is in the same folder where Trace files are saved.

The file naming convention is “RTS_Capture_YYYY-MM-DD_HH-MM-SS.csv”.

NOTE: File writing must happen immediately, so there is no file naming dialog.

If you click the button more than once a second, the previous file with the same timestamp will be lost.

Real-Time Statistical Monitor Pop-up Menu

If you right-click a graph in the Real-Time window, a pop-up menu appears with options for changing the format of the display:

att_11_for_337054069.png
Real-Time Statistical Monitor Pop-up Menu

  • Undo Zoom: If you have zoomed in, undoes the zoom.

  • Fit to Graph Area: Scales the view so the entire trace fits in the graph area.

  • Y Scale Type:

    • Linear: Converts display to linear format.

    • Logarithmic: Converts display to logarithmic format.

  • Hide: Hides the selected graph.

  • Remove: Removes the selected graph.

  • Properties: Opens a dialog box with options for changing the colors, titles and other features of the graphs.

Displaying Multiple Graphs

The Real Time Statistics window gives you the ability to create up to three separate graphing windows so that you can create separate graphs of traffic and tile them vertically. Within these windows, you can format the graphs in a number of ways.

To view two or three graphs simultaneously, click the Graph Areas att_12_for_337054069.png button. The following menu opens:

att_13_for_337054069.png
Graph Areas Menu Options

Selecting a checkbox displays the selected graph type:

  • Statistics Accumulation: Plots the percentage of Link utilization by non- idle traffic for both directions of the link.

  • Data Packet Count (Packets/s): Plots counts of Data Packets per second for both directions of the link.

  • Data Payload Throughput (MBytes): Plots data payload throughput for both directions of the link.

  • Bus Usage: Plots amount of Bus usage.

  • SuperSpeed Host Rx Data Payload & SuperSpeed Host Tx Data Payload: For USB 3.2, the Real-Time Statistics window can display a SuperSpeed graph of real-time link activity.