Instead, it is only concerned with “disks” (more specifically mount points on Linux). This command will produce a lot of text, typically it will repeat the same information for the number of cores present in your CPU. Note: The disk usage sensors do not support monitoring folder/directory sizes. Use the cat command to display the data held in /proc/cpuinfo. If no path is provided via the optional argument, the integration defaults to ‘/’ (root). I preferred to go with this method for most of the time. This is very simple and straightforward one line script. If you want to get only the current Memory utilization percentage through mail when the system reaches the given threshold, use the following script. Collectl is yet another powerful and feature-rich command-line-based utility, that can be used to gather information about Linux system resources such as CPU usage, memory, network, inodes, processes, nfs, TCP, sockets, and much more. Method-1 : Linux shell script to monitor memory usage with email alert. The table contains types and their argument to use in your configuration.yaml Collectl: All-in-One Performance Monitoring Tool. If you're running Kernel 4.14+ you can get more advanced Linux memory usage metrics like Proportional Set Size (PSS), Unique Set Size (USS), proportional swap usage and others (see the documentation for what you can get from /proc/]įor me, it was important to have structured output so that I could more easily consume it for analysis.Argument to use, please check the table below for details.Īfter restarting Home Assistant, these sensors will show up and update their CPU usage can also be monitored with the top command which is part of most Linux distributions. A notification email may be sent in case usage exceeds a given threshold. Procpath can also visualise RSS of the target process into an SVG out of the box like this: $ procpath plot -d tgt.sqlite -f tgt.svg -q rss -p $PID The contents of these files can be checked on a regular basis from a simple script. ![]() Using a SQLite GUI can be a more convenient to explore and query the database (e.g. Method-2 : Shell Script to Monitor CPU, Memory and Swap usage on Multiple Linux System with eMail alert. $ sqlite3 tgt.sqlite "SELECT ts, stat_rss * 4 rss_kib FROM record WHERE stat_pid = $PID" This script allows you to check CPU, memory and swap usage on multiple Linux system from the terminal. When you think it has recorded enough datapoints, Ctrl+C it and this will give you the recordings. By default it makes a recording per 10 seconds (for the target process, its ancestors and descendants). By default, it displays the most CPU-intensive tasks running on the server and updates the list every five seconds. This Bash script collects and sends a mail with a CPU, Memory and Swap usage for a given Linux system at a given interval in a text file. In the simplest case you point it to the PID of interest and let it record its Procfs metrics including Resident Set Size (RSS). It provides a dynamic real-time view of a running system i.e. Method-2 : Shell Script to Monitor CPU, Memory and Swap usage on Multiple Linux System with eMail alert. ![]() Yes, can achieve exactly this, a bit more with Procpath (author here). I want to monitor memory usage of a process, and I want this data to be logged.
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