Hatem Nassrat (el 2008-02-09 a les 00:14:28 -0400) va dir:: > I have not used a nuympy flavor for these structures in the past. I > changed it now and the write speeds for this example has increased. It > is now comparable similar to the write speed of the pickling version. > The read spead however has been increased. The following are the average > timings for the same input dataset. > > write : 27.769s > read : 4.605s
Now that was a big improvement! From 20 seconds in reading to 4, it's nice to hear that. > Since this is a portable way of inserting my datastructure I will > consider it even with the minor decrease in read speed. I however, is > requested to test the HDF5 version against an RDBMS version, mainly for > speed. If it happens that I would need to move to the pickled version to > push HDF5 through as the standard for my DB I will as it seems to be the > natural way of organizing my data. As I have mentioned I am a newbie > pytables user, but my liking to HDF5 is increasing exponentially. That's also nice to hear. :) Please report back if the HDF5 version happens to beat (or doesn't) the RDBMS one! Also, haven't you thought of providing a user quote? https://www.pytables.org/moin/UserQuotes Thanks for the feedback! :: Ivan Vilata i Balaguer >qo< http://www.carabos.com/ Cárabos Coop. V. V V Enjoy Data ""
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