Low-Level System Optimization

SystemOptions, SetSystemOptions test and set hundreds of internal kernel options

Options, SetOptions options for functions, notebooks, and the whole front end

ClearSystemCache reset the Wolfram System by clearing internal cached results

Update force internal updating of symbol values

Share internally share common subexpressions

Operating System Optimization

Run change process parameters through the operating system

SetEnvironment, GetEnvironment get and set environment variables

Environment  ▪  $ProcessID  ▪  SystemInformation