Arjuna Kodisinghe/ShutterstockIf you’re regularly writing or reading files, your disk speed can affect your server’s performance. We’ll show you how to measure your server’s speed, and how to understand how it stacks up to the competition. How Is IO Performance Measured? There are many different ways to read and write to disks, so no single number exists for “speed” that you can measure. The simplest way to measure performance is to time how long it takes to read large files or perform large file copies. This measures sequential read and write speed, which is a good metric to know, but you’ll rarely see speeds this high in practice, especially in a server environment. A better metric is random access speed, which measures how fast you can access files stored in random blocks, mimicking real-world usage much more. SSDs usually have fast r… Click below to read the full story from How To Geek
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