Stress Linux system: stress-ng

worthy: stress-ng

NOTE: it's the newer/better version of "stress"

Quote:

stress-ng current contains the following methods to exercise the machine:

• CPU compute - just lots of sqrt() operations on pseudo-random values. One can also specify the % loading of the CPUs
• Cache thrashing, a naive cache read/write exerciser
• Drive stress by writing and removing many temporary files
• Process creation and termination, just lots of fork() + exit() calls
• I/O syncs, just forcing lots of sync() calls
• VM stress via mmap(), memory write and munmap()
• Pipe I/O, large pipe writes and reads that exercise pipe, copying and context switching
• Socket stressing, much like the pipe I/O test but using sockets
• Context switching between a pair of producer and consumer processes