This dynamically updated virtual file is actually the source of information displayed by many other memory related tools such as free, top and ps tools. The simpliest method to check RAM usage is via /proc/meminfo. Here is a non-exhaustive list of GUI or command-line tools to choose from to check used and free memory on Linux platform. Different tools vary in terms of their monitoring granularity (e.g., system-wide, per-process, per-user), interface (e.g., GUI, command-line, ncurses) or running mode (e.g., interactive, batch mode). Naturally, Linux offers a wealth of options to monitor the usage of the precious memory resource. When it comes to optimizing the performance of a Linux system, physical memory is the single most important factor. What are the available GUI-based or command-line tools for checking current memory usage of Linux? Question: I would like to monitor memory usage on my Linux system.
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