1STRESS(1)                        User Commands                       STRESS(1)
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NAME

6       stress - tool to impose load on and stress test systems
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SYNOPSIS

9       stress [OPTION [ARG]] ...
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DESCRIPTION

12       `stress' imposes certain types of compute stress on your system
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14       -?, --help
15              show this help statement
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17       --version
18              show version statement
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20       -v, --verbose
21              be verbose
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23       -q, --quiet
24              be quiet
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26       -n, --dry-run
27              show what would have been done
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29       -t, --timeout N
30              timeout after N seconds
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32       --backoff N
33              wait factor of N microseconds before work starts
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35       -c, --cpu N
36              spawn N workers spinning on sqrt()
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38       -i, --io N
39              spawn N workers spinning on sync()
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41       -m, --vm N
42              spawn N workers spinning on malloc()/free()
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44       --vm-bytes B
45              malloc B bytes per vm worker (default is 256MB)
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47       --vm-stride B
48              touch a byte every B bytes (default is 4096)
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50       --vm-hang N
51              sleep N secs before free (default none, 0 is inf)
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53       --vm-keep
54              redirty memory instead of freeing and reallocating
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56       -d, --hdd N
57              spawn N workers spinning on write()/unlink()
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59       --hdd-bytes B
60              write B bytes per hdd worker (default is 1GB)
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62       Example: stress --cpu 8 --io 4 --vm 2 --vm-bytes 128M --timeout 10s
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64       Note: Numbers may be suffixed with s,m,h,d,y (time) or B,K,M,G (size).
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SEE ALSO

67       The  full  documentation  for stress is maintained as a Texinfo manual.
68       If the info and stress programs are properly installed  at  your  site,
69       the command
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71              info stress
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73       should give you access to the complete manual.
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77stress 1.0.4                      March 2010                         STRESS(1)