![]() How to Install Adobe Acrobat Reader on Ubuntu 20.04 Focal Fossa Linux.Set Kali root password and enable root login.How to change from default to alternative Python version on Debian Linux.Netplan static IP on Ubuntu configuration.How to enable/disable firewall on Ubuntu 18.04 Bionic Beaver Linux.How to install Tweak Tool on Ubuntu 20.04 LTS Focal Fossa Linux.Linux IP forwarding – How to Disable/Enable.How to use bash array in a shell script.AMD Radeon Ubuntu 20.04 Driver Installation.How to install missing ifconfig command on Debian Linux.Ubuntu 20.04 Remote Desktop Access from Windows 10.How to find my IP address on Ubuntu 20.04 Focal Fossa Linux.How to install the NVIDIA drivers on Ubuntu 20.04 Focal Fossa Linux.In our example we are performing the stress test on a quad core i7 which supports hyper-threading, so we use 8. You can obtain the appropriate number to use by entering getconf _NPROCESSORS_ONLN. To fully stress the CPU, this should be the total number of CPU cores or double that if the CPU supports hyper-threading. To perform a stress test with stress, simply enter the following command where the number used in -cpu is the amount of threads to start. On RHEL based distros it can be installed with the following command after enabling the Extra Packages for Enterprise Linux (EPEL) Repository $ sudo yum install stress On Debian, Ubuntu and Mint it can be installed with the following command. On Arch Linux and Manjaro it can be installed with the following command. In addition to being able to stress test the CPU, it is also able to perform memory, I/O and disk stress on a system. Stress is a simple workload generator that imposes a configurable amount of stress on the system. When you want to stop the yes processes and return to normal CPU utilization, simply enter the following into your terminal. We previously published an article on how to check and monitor cpu utilization on linux. When running this command it is advisable to use top, htop or some other program to monitor the CPU utilization in order to verify that it is reaching 100%. $ for i in $(seq $(getconf _NPROCESSORS_ONLN)) do yes > /dev/null & done To begin, enter the following command into your terminal. Additionally, it does not require root privileges to run. The benefit to this approach is that it requires only standard utilities that come out of the box on GNU/Linux systems, so no installation of additional programs or libraries are needed. If the processor supports hyper-threading and it is enabled then it will create twice as many processes, as this is necessary to fully maximize the CPU utilization. On an idle system, each yes process will utilize 100% of a CPU core. yes prints the letter y repeatedly until it is killed. This one-liner will create a yes process to run on each processor core of the machine. In that case, you could run the following command to stress test the processor, making the issue more likely to occur, and therefore observable to you.Īfter you have taken steps to remedy the situation such as uninstalling software, reinstalling software including the operating system or replacing hardware components you could run the command again to determine whether or not it has resolved the issue. In this situation you may want to attempt to reproduce the issue. You may find yourself in a situation where your machine, or one you are maintaining for a user, is experiencing unexpected shutdowns, kernel panics or other intermittent issues. Frequently, intermittent issues do not become reproducible until the system is under heavy load, sometimes for a prolonged period of time. The yes stress test detailed in this article can be very useful for troubleshooting purposes. ![]() $ – requires given linux commands to be executed as a regular non-privileged user # – requires given linux commands to be executed with root privileges either directly as a root user or by use of sudo command Privileged access to your Linux system as root or via the sudo command may be required to install other stress test packages. No root privileges required for the yes stress test. ![]() Requirements, Conventions or Software Version Used How to stress test your CPU on Linux Software requirements and conventions used Software Requirements and Linux Command Line Conventions Category
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