Safe to kill spindump? (Older/slower machines)
It's probably safe to even disable them if you are not interested in the generated system analytics. Full procedure to do so is documented on Disable tailspind and spindump to Speed Up your Mac. In a nutshell:


Disable SIP
Unload/rename LaunchDaemon for spindump

sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.spindump.plist
sudo mv /System/Library/LaunchDaemons/com.apple.spindump.plist{,.bak} 

Do the same for com.apple.tailspind.plist
Enable SIP


You probably need to redo this with each macOS update.