How to generate variable memory load (%) in linux?

by clyde_reichert , in category: General Help , a month ago

How to generate variable memory load (%) in linux?

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1 answer

by alyson_bogan , 25 days ago


To generate a variable memory load in Linux, you can use stress-ng, a stress testing tool for Linux systems. It provides various parameters to generate a workload on different system resources, including memory.

  1. Install stress-ng if it's not already installed on your Linux system. You can use package managers like apt or yum to install it. For example, on Ubuntu, run: sudo apt-get install stress-ng
  2. Once installed, you can use the stress-ng command to generate a memory load with a specified percentage. The parameter for memory load is --vm. For example, to generate a 50% memory load on all available CPUs, use the following command: stress-ng --vm 2 --vm-bytes $(awk '/MemAvailable/{printf "%d ", $2 * 0.5;}' < /proc/meminfo)K --vm-method all --verify This command will allocate approximately 50% of available memory and start stressing the system's memory. Note: Adjust the percentage value as per your requirements.
  3. You can monitor the memory usage and system performance during the memory load generation by using commands like top, htop, or free -m. These commands can provide real-time information about memory usage, CPU load, and other system metrics.

Remember to monitor your system closely while generating a variable memory load as it may impact the overall system performance depending on the load intensity and available resources.