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STRESS(1) User Commands STRESS(1)

stress - tool to impose load on and stress test systems

stress [ OPTION [ARG]] ...

`stress' imposes certain types of compute stress on your system
-?, --help
show this help statement
show version statement
-v, --verbose
be verbose
-q, --quiet
be quiet
-n, --dry-run
show what would have been done
-t, --timeout N
timeout after N seconds
--backoff N
wait factor of N microseconds before work starts
-c, --cpu N
spawn N workers spinning on sqrt()
-i, --io N
spawn N workers spinning on sync()
-m, --vm N
spawn N workers spinning on malloc()/free()
--vm-bytes B
malloc B bytes per vm worker (default is 256MB)
--vm-stride B
touch a byte every B bytes (default is 4096)
--vm-hang N
sleep N secs before free (default none, 0 is inf)
redirty memory instead of freeing and reallocating
-d, --hdd N
spawn N workers spinning on write()/unlink()
--hdd-bytes B
write B bytes per hdd worker (default is 1GB)
Example: stress --cpu 8 --io 4 --vm 2 --vm-bytes 128M --timeout 10s
Note: Numbers may be suffixed with s,m,h,d,y (time) or B,K,M,G (size).

The full documentation for stress is maintained as a Texinfo manual. If the info and stress programs are properly installed at your site, the command
info stress
should give you access to the complete manual.
March 2010 stress 1.0.4

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