vtop is a tool which gives you an intuition of CPU/memory usage during a period. This post introduces how to install it on OpenBSD (assuming working asroot account):
(1) Install node.js (refer here):
# pkg_add node
(2) Install vtop:
# npm install -g vtop
(3) Since vtop uses Unicode braille characters to CPU and Memory charts, I need to change OpenBSD to use UTF-8 encoding (refer here and here):
export LC_CTYPE="en_US.UTF-8"
Now, vtop works well on my Cygwin terminal:
