If you still remember Mick Genie ever post on how to monitor RAM/Memory on Linux earlier from http://www.mickgenie.com/monitor-rammemory-on-linux/, you should have an idea on the basic command to monitor Linux server.
Today I would like to share some useful monitoring tools from Linux box. With Linux monitoring tools, it uses to analysis and debugging the Linux box.
With top command, it do comes with some hotkey.
t – Displays summary information off and on.
m – Displays memory information off and on.
A – Sorts the display by top consumers of various system resources. Useful for quick identification of performance-hungry tasks on a system.
f – Enters an interactive configuration screen for top. Helpful for setting up top for a specific task.
o – Enables you to interactively select the ordering within top.
r – Issues renice command.
k – Issues kill command.
z – Turn on or off color/mono
ps command used show the process list of your server.
– To show all process list.
– Long Format list
– Print all process on the server
– System information, hardware and software information would show by running from vmstat.
– Display memory utilization
– Display active/inactive memory information
– Show all information such as logged in user, server load, etc
– show the free, used physical memory and swap information.
– Show the System activity