9. Performance Report

Performance statistics logging is turned on by setting a launch parameter, exportPerfStats to 1.

9.1. C920 UCB Camera, 30 FPS

Source: live C920 USB camera, 1280x720 in MJPG mode, at 30 FPS. “gscam2” ROS node and a demo ROS node are running in the ROS 2 Docker container on the target SK board.

Demo

FPS

Total time (ms)

Preproc time (ms)

Inference time (ms)

A53 Load (%)

DDR Read BW (MB/s)

DDR Write BW (MB/s)

DDR Total BW (MB/s)

C71_1 Load (%)

MCU1_0 Load (%)

MSC_0 (%)

MSC_1 (%)

VISS (%)

NF (%)

LDC (%)

ti_vision_cnn (semseg)

23.88

41.8727

16.0046

34.1663

52.71

2618

2337

4955

73.11

0.95

8.75

0

0

0

6.35

ti_vision_cnn (objdet)

26.73

37.4123

4.0000

18.1254

43.10

2354

726

3080

47.40

0.75

10.18

0

0

0

6.86

Note: “A53 Load (%)” are for dual A53 cores in a scale of 100%. For example, 100% A53 loading means that two A53 cores are fully loaded.