2 ms·
If you read data to an arbitrary position in a file, you first need to figure out in which block(s) that data is located. If the file is fragmented, this may r
by mgaunard 4y ago
If you read data to an arbitrary position in a file, you first need to figure out in which block(s) that data is located.
If the file is fragmented, this may require more reads than if it's contiguous and uses an extent.
Exact scheme is filesystem-specific.
- antod 4y agoYeah, that was one of the reasons I said "just about". But minuscule compared to millisecond seek latencies on a spinning disk. So the problem getting orders of magnitude smaller while the costs of the cure increasing a lot swung the equation away from defragging being a good thing overall.