Re: [Pytables-users] blosc confusion; complevel 4, 5, 6 much smaller than 7, 8, 9; why?

2010-11-10 Thread Francesc Alted
A Wednesday 10 November 2010 15:41:50 Gerrit Holl escrigué: > Hi, > > On 10 November 2010 14:39, Francesc Alted wrote: > > A Wednesday 10 November 2010 12:08:34 Francesc Alted escrigué: > >> A Tuesday 09 November 2010 16:38:10 Francesc Alted escrigué: > >> > Hmm, this seems a problem with Blosc i

Re: [Pytables-users] blosc confusion; complevel 4, 5, 6 much smaller than 7, 8, 9; why?

2010-11-10 Thread Gerrit Holl
Hi, On 10 November 2010 14:39, Francesc Alted wrote: > A Wednesday 10 November 2010 12:08:34 Francesc Alted escrigué: >> A Tuesday 09 November 2010 16:38:10 Francesc Alted escrigué: >> > Hmm, this seems a problem with Blosc indeed.  Could you put the >> > compressed datafile (for example, noaa18_

Re: [Pytables-users] blosc confusion; complevel 4, 5, 6 much smaller than 7, 8, 9; why?

2010-11-10 Thread Francesc Alted
A Wednesday 10 November 2010 12:08:34 Francesc Alted escrigué: > A Tuesday 09 November 2010 16:38:10 Francesc Alted escrigué: > > Hmm, this seems a problem with Blosc indeed. Could you put the > > compressed datafile (for example, noaa18_2008_zlib3.h5) in a public > > place so that I can see what'

Re: [Pytables-users] how to speed up attributes access

2010-11-10 Thread david.briant
Hi Thx. It's working faster. I'm opening a table like this: import tables as pytables tsdb = pytables.openFile("c:\\data\\tsdb.hd5", mode="a", NODE_CACHE_SLOTS=-1) I then list all the attribute names thus: def getAllAttributeNames(tsdb): answer = set() for node in tsdb: if isin

Re: [Pytables-users] blosc confusion; complevel 4, 5, 6 much smaller than 7, 8, 9; why?

2010-11-10 Thread Francesc Alted
A Tuesday 09 November 2010 16:38:10 Francesc Alted escrigué: > Hmm, this seems a problem with Blosc indeed. Could you put the > compressed datafile (for example, noaa18_2008_zlib3.h5) in a public > place so that I can see what's going on? Thanks Gerrit for your sample file. I've looked at the is