01 CPU usage monitoring
By default, collectl displays information about three major aspects of computing, ie CPU, disks and the network interface, at one-second monitoring intervals. If you want to limit the output to only CPU details, you can use:
If you have multiple CPUs, you can use C. It will output multiple lines together, one for each CPU:
02 Memory monitoring
To display memory details, you can use the m option, like this: This shows you the free memory, buffered memory, cache and a few other details. However, if you find that you want further details, useM:
03 Check disk usage
Building upon the previous two options, you might have guessed that to view only the disk related details, you can use:
This shows you the number of reads/writes…
