42 lines
1.9 KiB
Plaintext
42 lines
1.9 KiB
Plaintext
NAME='Stress'
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AUTHOR='Yi Yang <yang.y.yi@gmail.com>'
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TEST_TYPE='client'
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TIME='MEDIUM'
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TEST_CATEGORY='Functional'
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TEST_CLASS='Software'
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DOC='''\
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stress is not a benchmark, but is rather a tool designed to put given subsytems
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under a specified load. Instances in which this is useful include those in
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which a system administrator wishes to perform tuning activities, a kernel or
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libc programmer wishes to evaluate denial of service possibilities, etc.
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Stress command line options:
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-?, --help show this help statement
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--version show version statement
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-v, --verbose be verbose
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-q, --quiet be quiet
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-n, --dry-run show what would have been done
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-t, --timeout N timeout after N seconds
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--backoff N wait factor of N microseconds before work starts
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-c, --cpu N spawn N workers spinning on sqrt()
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-i, --io N spawn N workers spinning on sync()
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-m, --vm N spawn N workers spinning on malloc()/free()
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--vm-bytes B malloc B bytes per vm worker (default is 256MB)
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--vm-stride B touch a byte every B bytes (default is 4096)
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--vm-hang N sleep N secs before free (default is none, 0 is inf)
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--vm-keep redirty memory instead of freeing and reallocating
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-d, --hdd N spawn N workers spinning on write()/unlink()
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--hdd-bytes B write B bytes per hdd worker (default is 1GB)
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--hdd-noclean do not unlink files created by hdd workers
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Example: %s --cpu 8 --io 4 --vm 2 --vm-bytes 128M --timeout 10s
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Note: Numbers may be suffixed with s,m,h,d,y (time) or B,K,M,G (size).
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Autotest module options:
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args = Arguments passed to the stress test. If omitted, an heuristic
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will be used to calculate sensible defaults
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stress_length = Time length on which stress will run, in seconds.
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By default is 60s.
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'''
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job.run_test('stress')
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