How to determine size (in bytes) of a PyTables array?

Question

How can I determine the size (in bytes) of a PyTables Array?

score 1 · Answer 1 · edited May 23 '17 at 10:27

1

Its not straight forward to do, but one thing you can do is to pickle the object and then determine the size of the serialized object. See this post

edited May 23 '17 at 10:27

Community

answered Mar 11 '13 at 15:41

reptilicus

score 1 · Accepted Answer · answered Mar 11 '13 at 19:36

1

It turns out that since all PyTables arrays are simply Numpy arrays underneath, you can do the following:

MyPytableFile.root.myPytableArray[:].nbytes

answered Mar 11 '13 at 19:36

ChaimKut

Zinovy Nis · Answer 3 · 2013-05-13T12:13:15.573

0

Why not

arrSizeInBytes = arr.nrows * arr.rowsize

At least it equals to the results of

./h5ls -r -v pytables.db | grep "Dataset\|Storage"

edited May 13 '13 at 12:13

answered Apr 22 '13 at 12:14

Zinovy Nis

3 Answers3