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authorPedro Vicente Nunes <pvn@hdfgroup.org>2008-04-29 18:02:05 (GMT)
committerPedro Vicente Nunes <pvn@hdfgroup.org>2008-04-29 18:02:05 (GMT)
commit6b41367ac688547671ab46e6bb1e0d325a285f4d (patch)
treea637f37646078e728fc9d88f0d5a995979431ad2 /windows/tools/testfiles/h5difftst/h5difftst.vcproj
parent9017a8113c2a160389212c2863414d01650b360b (diff)
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[svn-r14892] RFC display compression ratio in h5dump
Here's the current behavior of h5dump regarding the printing of the dataset creation property list For example ./h5dump -H -p -d filters HDF5 "tfilters.h5" { DATASET "deflate" { DATATYPE H5T_STD_I32LE DATASPACE SIMPLE { ( 20, 10 ) / ( 20, 10 ) } STORAGE_LAYOUT { CHUNKED ( 10, 5 ) SIZE 385 } FILTERS { COMPRESSION DEFLATE { LEVEL 9 } } FILLVALUE { FILL_TIME H5D_FILL_TIME_IFSET VALUE 0 } ALLOCATION_TIME { H5D_ALLOC_TIME_INCR } } } The proposed behavior is to add this information after SIZE SIZE 385 (51.9%COMPRESSION) That percentage is obtained trough Per = (b-a) / a Where a = theoretical size obtained by multiplying datum size times number of elements b = size obtained with H5Dget_storage_size The final print would look like HDF5 "tfilters.h5" { DATASET "deflate" { DATATYPE H5T_STD_I32LE DATASPACE SIMPLE { ( 20, 10 ) / ( 20, 10 ) } STORAGE_LAYOUT { CHUNKED ( 10, 5 ) SIZE 385 (51.9%COMPRESSION) } FILTERS { COMPRESSION DEFLATE { LEVEL 9 } } FILLVALUE { FILL_TIME H5D_FILL_TIME_IFSET VALUE 0 } ALLOCATION_TIME { H5D_ALLOC_TIME_INCR } } } tested: windows, linux, solaris
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