Whatever you do, be careful about interpreting the results. In general, a file takes more space on disk than the file size itself would indicate. Files are stored on disk in clusters, which is some whole multiple of 512 or 1024 bytes (= one sector). The size of a cluster is related to the disk size, in general, the larger the disk, the larger the cluster size. A value of 16 to 32k is quite common.

Thus, even if your file is only 1 byte long, it will take up a whole cluster. In a similar way, if your file is just 1 byte too big to fit into one cluster, it will take up two.

In pop speak: you should round up the file size for each to the next multiple of the cluster size, and only add up those results. Only that result will actually tell you how much space is taken up by a directory.

In reply to Re: Total size of each Directory by bart
in thread Total size of each Directory by Anonymous Monk

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