Xcode Defaults

Command Line

# Enable internal menu
defaults write com.apple.dt.Xcode ShowDVTDebugMenu -bool YES

# Enable project build time
defaults write com.apple.dt.Xcode ShowBuildOperationDuration YES

# Reduce the number of compile tasks and stop indexing
defaults write com.apple.dt.XCode IDEIndexDisable 1 

# Save all xcode preferences to a file
defaults read com.apple.dt.XCode > xcodeprefs.json

# Show all devices and their information you have plugged in before 
defaults read com.apple.dt.XCode DVTSavediPhoneDevices

# Improve performance
defaults write com.apple.dt.Xcode IDEBuildOperationMaxNumberOfConcurrentCompileTasks 5 

# Improve performance by leveraging multi-core CPU 
defaults write com.apple.dt.Xcode IDEBuildOperationMaxNumberOfConcurrentCompileTasks `sysctl -n hw.ncpu`

# Delete these settings
defaults delete com.apple.dt.XCode IDEIndexDisable