How to Test CPU and Memory Load with Stress & Stress-ng
In this article, I’ll install Stress on Linux machine and test CPU and memory load with Stress. Let’s get started:
Table of Contents
Install Stress
Run this command to install Stress-ng (updated version of Stress):
# CentOS/RHEL 8
sudo dnf install stress-ng -y
# CentOS/REHL 7/Amazon Linux
sudo yum install stress-ng -y
# Debian/Ubuntu
sudo apt install stress-ng -yRun this command to install Stress on your machine:
# CentOS/RHEL 8
sudo dnf install stress -y
# CentOS/REHL 7/Amazon Linux
sudo yum install stress -y
# Debian/Ubuntu
sudo apt install stress -yNow run this command to see all available options:
stress-ng --help
# stress
stress --helpRun Stress
Stress using CPU-bound task:
stress-ng --cpu 4 -t 30s
# with stress
stress --cpu 4 -t 30s
#or
stress -c 4 -t 30s
Stress using IO-bound task:
stress-ng -i 4 -t 60s
# with stress
stress -i 4 -t 60sWe can run all of these tests in parallel by running the command below:
stress-ng --cpu 2 --all -t 120sGive load using two CPU-bound processes, one I/O-bound process, and one memory allocator:
stress-ng -c 2 -i 1 -m 1 --vm-bytes 128M -t 20sWatch Load Average
We can see the avegare load using these commands:
uptime
# or
watch uptime
# or
tophtop is another awesome tool to monitor loads:
# install htop
sudo yum install htop -y # CentOS/RHEL
sudo apt install htop -y # Debian/Ubuntu
# then run
htopNote
If you run stress for a long time, you should reboot the system before making it live.
sudo rebootShare on Social Media
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