Re: [Pytables-users] Determining effect of compression

[Francesc A. <fa...@py...>]

In case you want more feedback on compression filters, this study might 
be interesting for you:

http://gael-varoquaux.info/blog/?p=159

Francesc

On 3/28/12 12:33 PM, Alvaro Tejero Cantero wrote:
> Hi,
>
> Trying to evaluate compression filters, I was looking for a call in
> PyTables to get the size of a dataset (in bytes). As I didn't find it
> I remembered the many benchmarks and found instead [1] that the way to
> do it is to create single-dataset files and interrogate the
> filesystem. Curiously enough, I didn't find that feature either in
> h5ls, hdfview or ViTables. Is there a structural reason why this size
> cannot be computed from library calls?
>
> -á.
>
> [1] https://github.com/PyTables/PyTables/blob/master/bench/blosc.py
>
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-- 
Francesc Alted