Thermal Load Test (CPU)

Table of Contents

• Introduction
• Supported plaforms
• Steps to run the application on J7 EVM (Linux + RTOS mode)
• Sample Output

Introduction

This application can be used to load C7x, C6x, R5F ranging from 1-99% for a specifed time in seconds. The demo takes three input paramters. core, load in percentage, timer in seconds.

Core	Value
C7x	2
MCU2	4
C6x	5
MCU3	6
MCU4	7

Supported plaforms

Platform	Linux x86_64	Linux+RTOS mode	QNX+RTOS mode	SoC
Support	NO	YES	YES	J721e / J721S2 / J784S4

Steps to run the application on J7 EVM (Linux + RTOS mode)

1. Build the application and related libraries as mentioned in Build Instructions for Linux+RTOS mode
2. Run the app as shown below: The below example loads C7x(Core - 2) at 80% for 5 seconds.

   cd /opt/vision_apps
   ./vx_app_load_test.out 2 80 5

3. Output will be sent to the terminal standard output.

Sample Output

Shown below is a example input and its corresponding output

./vx_app_load_test.out 2 80 5

APP: Init ... !!!
MEM: Init ... !!!
MEM: Initialized DMA HEAP (fd=4) !!!
MEM: Init ... Done !!!
IPC: Init ... !!!
IPC: Init ... Done !!!
REMOTE_SERVICE: Init ... !!!
REMOTE_SERVICE: Init ... Done !!!
APP: Init ... Done !!!
core is 2 The load is 80 percent time is 5 seconds
118913.375297 s: REMOTE_SERVICE_TEST: Started load test for CPU c7x_1 load is 80 !!!
CPU:  c7x_1: TOTAL LOAD =  79.34 % ( HWI =   0. 3 %, SWI =   0. 4 % )
CPU:  c7x_1: TOTAL LOAD =  79.36 % ( HWI =   0. 3 %, SWI =   0. 4 % )
CPU:  c7x_1: TOTAL LOAD =  79.36 % ( HWI =   0. 3 %, SWI =   0. 4 % )
118919.378189 s: REMOTE_SERVICE_TEST: Stopped load test for CPU c7x_1 !!!
APP: Deinit ... !!!
REMOTE_SERVICE: Deinit ... !!!
REMOTE_SERVICE: Deinit ... Done !!!
IPC: Deinit ... !!!
IPC: DeInit ... Done !!!
MEM: Deinit ... !!!
MEM: Alloc's: 0 alloc's of 0 bytes
MEM: Free's : 0 free's  of 0 bytes
MEM: Open's : 0 allocs  of 0 bytes
MEM: Deinit ... Done !!!
APP: Deinit ... Done !!!
APP IPC TIOVX: Done !!!