Hi Ger, 2010/1/11 Ger van Diepen <die...@astron.nl>
> Hi Fransesc, > > Why does HDF5 have to reserve space for each IO operation? Space is only > needed for the cache and the buffer supplied by the caller. > You are right, unless the chunk cache is not being used. For example, on my previous message, the tHDF5-x-4KB.png capture has been taken when the HDF5 cache size was set to just 4 KB, while the chunksize was 8KB, so the chunk cahe cannot be used (at least I guess so). At any rate, maybe I was wrong at supposing that H5FL_reg_free and H5FL_reg_malloc calls where made just to free/malloc space that is needed to read chunks. But I agree that a more informed opinion about this would be more than welcome ;-) -- Francesc Alted
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