NAME

       stress - tool to impose load on and stress test systems

SYNOPSIS

       stress [OPTION [ARG]] ...

DESCRIPTION

       `stress' imposes certain types of compute stress on your system

       -?, --help
              show this help statement

       --version
              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)

       --vm-keep
              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).

SEE ALSO

       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.