Filter Functions Debug
Glances
Free
Glances is a cross-platform curses-based system monitoring tool written in Python.
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Htop
Free
And here is my lightning talk at FOSDEM presenting the latest and upcoming features:
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IPulse
Paid
Using its concise and appealing user interface, iPulse graphically displays the inner workings of macOS on you desktop, menu bar or Dock.
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Process Explorer
Free
Find out what files, registry keys and other objects processes have open, which DLLs they have loaded, and more.
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