tool to load and stress a computer

 stress-ng can stress various subsystems of a computer.
 It can stress load CPU, cache, disk, memory, socket
 and pipe I/O, scheduling and much more. stress-ng is
 a re-write of the original stress tool by
 Amos Waterland but has additional features such as
 specifying the number of bogo operations to run,
 execution metrics, a stress verification on memory
 and compute operations and many more stress mechanisms.