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Htop on my linux machine shows many “processes” after launching one java program/JVM. I do understand that the JVM runs multiple
threads (for the actual program, for garbage collection, etc).
But how come htop lists them as multiple processes with different pids. What exactly are those processes?
Actually, it’s just that htop by default shows each thread as a separate process. You can add the line
hide_userland_threads=1to your~/.config/htop/htoprcfile to show only one line.See https://unix.stackexchange.com/questions/10362/why-does-htop-show-more-process-than-ps