Linux check process memory usage6/20/2023 ![]() # autoconf (optional - used by munin-config)ĬOMPONENT_PID_FILE="/var/run/apache2.pid"Įcho "graph_title $COMPONENT_NAME memory usage"Įcho "graph_info This graph shows the amount of memory used by the $COMPONENT_NAME processes"Įcho "$_vmrss. Note: this only monitors the main apache process, and doesn't show the memory usage of it's child processes. The graph it outputs looks like this (VmPeak and VmSize are the same in this example, so you only see one of them): If your server crashed at 3:45 you could start atop with atop -r logfilename, press m to switch to the per-process memory usage view, and then press t to move forward in 10 minute increments until 3:40. You can change this to suit your needs (just point to the right PID file and change the component name as needed). artem-russakovskii - By default atop logs data to a file every ten minutes. ![]() Here's an example of a munin plugin to track VmPeak,VmRSS and VmSize memory usage, for the apache process. Munin comes with many default plugins to track system resources, however it doesn't come with a plugin to track Peak memory usage - fortunetly, its extremely easy to write a plugin for it. Enter System Monitor in the search bar and access the application. To access the System Monitor: Navigate to Show Applications. However, certain data sets are much clearer, with a visual representation of memory usage. In order to track the memory usage of a process over time, you can use a tool called munin to track, and show you a nice graph of the memory usage over time. Commands Used to Check the Process Memory Usage in Linux Watch -n 7 free -m vmstat -d // Reports disk statistics vmstat -s // shows the amount of memory that. Checking Memory Usage in Linux using the GUI Using a graphical interface for server administration is not common practice. But I found msprint, a simple text-based tool shipped with Valgrind, to be of great help already. ![]() A great graphical tool for analyzing these files is massif-visualizer. VmPeak is the maximum amount of memory the process has used since it was started. These provide, (1) a timeline of memory usage, (2) for each snapshot, a record of where in your program memory was allocated. (Change $PID to the actual process id you're looking for). You can get the peak memory usage of a certain process, at: grep VmPeak /proc/$PID/status
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