We’re going to use a 10GB file because we’re more likely to see a difference in transfer times with a larger file than with a smaller one. To do this, all we really need is a flash drive, a computer with both types of USB ports, and a stopwatch.
For example, let’s say we want to test how long it takes to write a 10 gigabyte file to a flash drive over USB 2 versus USB 3. Testing transfer speeds with a dummy file is about as easy as you can imagine. Once you’ve created a dummy file, you can use it to test out transfer speeds for anything ranging from a simple USB flash drive to your fancy new home network. With just a few key presses, you’ll be able to create exactly what you want and get the answers you need.
#LAN SPEED TEST ERROR CREATING TEST FILE WINDOWS#
Now you can easily create dummy files of any size on your Windows PC–no more searching your computer for files of approximate sizes. Of course, you might not be able to remember the exact byte size of one gigabtye or a terabtyte, but if you really need to, you can just refer to this article! Once we create our new dummy file, (entering the true byte value of 1 gigabyte), we can right-click and select “Properties” to see its size, which is exactly 1 GB. Just enter or copy-paste that text into your command line and hit “Enter” and your dummy file will be generated. So, this is what we’ll use in our syntax for creating a 1 gigabyte dummy file: fsutil file createnew fakefile.txt 1073741824
#LAN SPEED TEST ERROR CREATING TEST FILE HOW TO#
The length of the file needs to be in bytes, so if you’re unsure how to convert a large file into bytes, then here are the values you need to enter to actually obtain the sizes you might want: Here is the syntax we want to use for creating dummy files: fsutil file createnew filename length
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