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Man Pages


Manual Reference Pages  -  STRESS (1)

NAME

stress - tool to impose load on and stress test systems

CONTENTS

Synopsis
Description

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.
Search for    or go to Top of page |  Section 1 |  Main Index


stress 1.0.4 STRESS (1) March 2010

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