High Load on *nix servers
To check and reduce the load, I am pasting the commands which will provide you the outputs concerned with high load. Accordingly, you can troubleshoot the issue to reduce the load. 1.Get server uptime with uptime command: $ uptime 2. Gather information like tasks, memory, cpu and swap through Top command: $ top -cd3 Use "Shift +m" to order the memory usage from maximum to minimum. You can use "Shift +o" to choose different options also. 3. See the Load average, memory usage and CPU usage with Sar command: $ sar $ sar -q $ sar -r 4. Check top 10 memory hungry processes using following command: $ ps auxxx --sort=-rss | head -11 5. Check top 10 cpu hungry processes using following command: $ ps auxxx --sort=-%cpu | head -11 6. Check mpstat result with following: $ /usr/bin/mpstat -P ALL 7. Check iostat with iostat command. $ iostat 8. Check free RAM on the server: $ free -m 9. Use pstree to look for any suspicious processes or u