DiskSpd is a utility for generating a load on a disk system and measuring its performance.
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Download DiskSpd can be on the links:
https://aka.ms/diskspd
https://gallery.technet.microsoft.com/DiskSpd-A-Robust-Storage-6ef84e62
https://github.com/microsoft/diskspd
Operating System Driver Provider Driver Version; Download Driver: Windows XP (64 bit) Vyacheslav Frolov: 2.2.2.0 (1/25/2011) Download Driver: Windows Server 2003 (64 bit). INSTALLING NOTE (x64-based Windows Vista/Windows Server 2008/Windows 7/8): The com0com.sys is a test-signed kernel-mode driver that will not load by default. To enable test signing, enter command: bcdedit.exe -set TESTSIGNING ON and reboot the computer. NOTE: Enabling test signing will impair computer security.
After downloading, we place the exe utility file in any directory and run the test from the command line, for example:
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When the test is completed, the results will be written to the DiskSpeedResults.txt file, and iotest.dat can be deleted:
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I will describe some of the launch options:
-b (block size, can be specified as K/M/G, for example, -b8K means block size is 8 KB).
-d (test duration in seconds).
-o (queue depth)
-t (threads, worker threads for the target test file).
-h (disabling software caching at the operating system level and hardware write caching).
-r (random test, if not specified, it will be sequential).
-w (write percent, for example -w25 means 25% write and 75% read).
-Z (the size of the buffer of the recording source of the test load, specified as K/M/G. Used to provide random data for recording.
-L (receive information about the delay during the test).
-c (specifying the size of the file to be created for the test, for example -c20G means that iotest.dat file will be created with a size of 20GB).
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See also my article:
Test iops using fio