IO - Fragmentation


A single block may be not full or contains only a part of the data unit (A file for a file system, a table for a database, …) which creates space inefficiency.

This leads to space inefficiency due to internal fragmentation, since the data unit lengths are often not multiples of block size, and thus the last block will remain partially empty.

There is always space inefficiency, don't try to fight it too hard.

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