Man1 - 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

–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).

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.