TIOVX User Guide
J721E Linux IPC Overhead Report
SoC J721E
Test EVM J721E TI EVM
HOST ARM A72 running Linux at default frequency
Target DSP C66x running Free RTOS at default frequency, L1/L2 Cache Enabled (Cache-only based performance.)




TIOVX Framework Overhead Benchmark

TIOVX Framework Overhead Benchmark

Average values are reported after performing 100 iterations on each target. Framework overhead is calculated by subtracting the execution time of a single node from the total execution time of its graph. Execution time is measured by querying each graph and node after calling vxProcessGraph.

Core Target Average Graph Performance (msec) Average Node Performance (msec) Average Overhead [Graph - Node] (msec) Maximum Overhead (msec) Minimum Overhead (msec)
A72 MPU-0 0.038710 0.007000 0.031710 0.036000 0.023000
R5F MCU2-0 0.197980 0.021000 0.176980 0.180000 0.129000
C66 DSP-1 0.099210 0.010000 0.089210 0.095000 0.082000
C7x DSP_C7-1 0.086320 0.007000 0.079320 0.081000 0.078000