Below ps command can be executed to get the details about process like number of threads, state, process command, start time, uptime, arguments, CPU & memory usage.
Below is how to interpret each file.
Below is sample output of java process using above ps command.
ps -eo pid,thcount,state,comm,lstart,etime,args,%cpu,%mem,cmd
Below is how to interpret each file.
thcount - thread count
state - process state
command - short description of process whether it is java, apache, httpd etc.
lstart - Exact date and time when the process started. Shown in Day Mon DD HH:MM:SS format
etime - Uptime of the process which is shows in Days, HH, MM and Seconds
etime - Startup arguments of the process.
%cpu - CPU utilized by the process.
%mem - Memory utilized by the process.
cmd - Complete command options of the process.
state - process state
command - short description of process whether it is java, apache, httpd etc.
lstart - Exact date and time when the process started. Shown in Day Mon DD HH:MM:SS format
etime - Uptime of the process which is shows in Days, HH, MM and Seconds
etime - Startup arguments of the process.
%cpu - CPU utilized by the process.
%mem - Memory utilized by the process.
cmd - Complete command options of the process.
Below is sample output of java process using above ps command.
7413 215 S java Tue Jul 30 09:55:46 2019 25-02:18:47 04:57:37 /usr/java/bin/ 0.8 4.5 /usr/java/bin/java -Xms200M -Xmx8192M -server -XX:StringTableSize=27001 -XX:PermSize=128m -XX:MaxPermSize=384m -Xss256k -XX:+UseParallelOldGC -XX:SoftRefLRUPolicyMSPerMB=10000
Products to which Article Applies
All UNIX environments
Additional References
https://www.ostechnix.com/find-long-process-running-linux/
https://linoxide.com/monitoring-2/ps-command-memory-use/
https://linoxide.com/monitoring-2/ps-command-memory-use/
tarun boyella
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