top is an ASCII full-screen performance monitor for Linux that is capable of reporting the activity of all processes (even if processes have finished during the interval), daily logging of system and process activity for long-term analysis, highlighting overloaded system resources by using colors, etc. At regular intervals, it shows system-level activity related to the CPU, memory, swap, disks (including LVM) and network layers, and for every process (and thread) it shows e.g. the CPU utilization, memory growth, disk utilization, priority, username, state, and exit code.
In combination with the optional kernel module netatop, it even shows network activity per process/thread.
Ranked in these QuestionsQuestion Ranking
Pros
Pro All in one
Better than top, htop and iotop
Pro Better than htop, top, and iotop
Highlights bottlenecks, so you know what's creating wait states.
Pro Complete and flexibe
Has a ton of possible profiles to show exactly what you need to monitor.
Commonly Compared
