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DISTFILES and PATCHFILES are empty - Define LICENSE (BSD2CLAUSE) - Convert 42-line pkg-descr into README file, fix a typo and give it better formatting
42 lines
1.6 KiB
Text
42 lines
1.6 KiB
Text
This utility can be used to test performance of storage devices.
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First, one need to generate file with I/O operations:
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# set mediasize=`diskinfo /dev/<device> | awk '{print $3}'`
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# set sectorsize=`diskinfo /dev/<device> | awk '{print $2}'`
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# raidtest genfile -s $mediasize -S $sectorsize -n 50000
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It will generate test which contains 50000 I/O requests with random
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size and random offset. Size is a multiple of sectorsize, but less
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than or equal to 128kB (maximum size of I/O request). I/O request
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type (READ or WRITE) is random as well.
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All test data are stored in 'raidtest.data' file in current working
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directory. To run test, one should type:
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# raidtest test -d /dev/<device> -n 10
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This command will read test data from 'raidtest.data' file, run 10
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processes which will be used to send requests to the given device
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in parallel. When test is finished you will see statistics:
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Bytes per second: <x>
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Requests per second: <y>
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If you want to compare performance of two storage devices, use the
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same data file!
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usage: raidtest genfile [-frw] <-s mediasize> [-S sectorsize] <-n nrequests> [file]
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raidtest test [-Rrw] <-d device> [-n processes] [file]
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where:
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-d device path to tested device
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-f if raidtest.data file or specified file already exists,
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remove it and create new one
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-n nrequests number of requests to generate
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-n processes number of processes to run
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-r generate/run only READ requests
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-R generate random data for write requests
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-s size of destination device
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-S sector size of destination device
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-w generate/run only WRITE requests
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file path to the data file instead of default 'raidtest.data'
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