The Timeline Trace report is available after C/RTL Co-Simulation. The Timeline Trace viewer displays the runtime profile of the functions of your design. It is especially useful to see the behavior of dataflow regions after Co-simulation, as there is no need to launch the Vivado logic simulator to view the timeline.
Timeline Trace viewer displays multiple iterations through the various
sub-functions of a dataflow region as shown in the preceding figure. It shows where the
functions are starting and ending, and displays the Co-simulation data in tables below
the timeline. To generate the Timeline Trace during C/RTL Co-simulatio you should enable
cosim.trace_level=all and
cosim.enable_dataflow_profiling=true options in the config file, or
from the Config File Editor.
The Timeline Trace view also shows FIFO and PIPO channel stall/starve
states with Full and Empty markers as shown above. In the preceding figure, you can see
the read_data PIPO is empty, resulting in stalls 68% of
the time as reported in the table below the graph.
The Dataflow Viewer displays a menu bar at the top of the report that includes the following features:
- Zoom In/Zoom Out/Zoom Fit/Zoom Full commands
- Toggle Table command to show or hide the table beneath the graph
- Expand All/Collapse All to expand or collapse the design hierarchy
- Previous Marker/Next Marker lets you move from one marker to the next in the timeline
- Delete All Markers remove markers from the timeline
- Legend command for the display