How fast are your disks?

Thu, 30 Jul 2026 17:46:58 +0000

Storage benchmarking—much like Wi-Fi benchmarking is a widely misunderstood black art. Admins and enthusiasts have for decades been tempted to just “get the big number” by reading or writing a large amount of data to a disk, getting a figure in MB/sec, and calling it a day. Unfortunately, the actual workload of a typical disk doesn’t look like that—and that “simple speed test” doesn’t reproduce a lot of the bottlenecks that slow down disk access in real-world systems.

硬盘测试 on ICE345のBLOG

How fast are your disks?