What is pmem FOR LINUX?

pmem FOR LINUX

pmem software is a tool designed to display memory information of running processes on Linux operating systems. It accesses memory information provided by the /proc file system to provide users with insights into memory usage.

Key Features:

• Displays memory information of running processes


• Accesses memory information from /proc file system


• Customizable installation directory using --prefix option


• Displays resident memory of processes by default


• Options to display memory size in different units


• Logs memory usage of given process IDs


• Generates gnuplot command files for data visualization


• Help and version display options


• Returns exit code 0 on success

Installation Process:

Follow these steps to install pmem on your Linux system:

1. Extract the source package by running: tar xzf pmem-version.tar.gz


2. Change directory to the extracted folder: cd pmem-version


3. Run the configuration script: ./configure [--prefix=...]


4. Compile the software: make


5. Install the binary: make install

Usage:

To display memory usage of processes, run pmem with the desired process IDs. You can use command-line arguments to customize the displayed information:

• -z: Displays the size


• -s: Displays shared memory


• -k: Displays memory usage in kilobytes


• -m: Displays memory usage in megabytes


• -d: Displays all memory information available


• -l: Logs memory usage of given PIDs


• -i: Sets the log interval in milliseconds (default: 100)


• -g: Writes a gnuplot command file for data visualization


• -h: Displays help


• -v: Displays version

On successful execution, pmem returns with an exit code of 0; otherwise, it returns 1.

Data Logging and Visualization:

To log memory usage and create a gnuplot file from the data, use the following command:

./pmem -l pids -i 100 -g data > data

gnuplot plot.gnu (to create the graph plot)

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