-c128M - Customize the file size to create for testing.-t4 - Indicates the number of threads to use.Usually, you can use one per available core in the processor.-o4 - Specifies the number of outstanding I/O requests per target per thread.-b8k - Defines the size of the block (default is 64K).You can override this with the "-s" option.-Sh - Disables software and hardware write caching.-w50 - Specifies the percentage of write and read requests.Using the 100 number means the command will write 100 percent of the time during the test. Using the 0 number means the command will only perform 100 percent reads. For instance, "-W50" will perform 50 percent writing and 50 percent reading. This is a balanced test, but you can change the number to adjust the test to fit your situation. c:\disk-speed-test.dat - This is the path to store the target file for the test. We are focusing on showing some of the command examples to get you familiar with the tool. You can always use the "diskspd /?" command to review all the options available to build a custom command to test the storage based on your situation. If you plan to use the DiskSpd tool, consider that these are artificial tests, which means that they will never match real-world workloads. However, the tests will give you an idea of what performance to expect. How to review DiskSpd results on Windows 10 You only need to be aware of the options you choose to match your workload as closely as possible. The completion time will depend on the parameters you used in the command. As you execute the command, you won't see any information on the screen until the tool finishes the test. Once the performance test is complete, the output will print on the screen.
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