User`s guide

Implicit DSP/BIOS Instrumentation
Instrumentation 3-19
3.4 Implicit DSP/BIOS Instrumentation
The instrumentation needed to allow the DSP/BIOS Analysis Tools to display
the Execution Graph, system statistics, and CPU load are built automatically
into a DSP/BIOS program to provide implicit instrumentation. You can enable
different components of DSP/BIOS implicit instrumentation by using the RTA
Control Panel Analysis Tool in Code Composer, as described in section
3.4.4.2, Control of Implicit Instrumentation, page 3-15.
DSP/BIOS instrumentation is efficient—when all implicit instrumentation is
enabled, the CPU load increases less than one percent for a typical
application. See section 3.2, Instrumentation Performance, page 3-4, for
details about instrumentation performance.
3.4.1 The Execution Graph
The Execution Graph is a special graph used to display information about
SWI, PRD, TSK, SEM and CLK processing. You can enable or disable
logging for each of these object types at run time using the TRC module API
or the RTA Control Panel in the host. Semaphore posts on the Execution
Graph are controlled by enabling or disabling TSK logging. The Execution
Graph window, as shown in Figure 3-9, shows the Execution Graph
information as a graph of the activity of each object.
Figure 3-9. Execution Graph Window