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Unexpected compression rate on LZ4 filter #121
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Thanks for the report! I reported this issue upstream: nexusformat/HDF5-External-Filter-Plugins#16 since |
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092190c38 Fix spelling errors (silx-kit#128) b241ca0d0 Fix the CMake multiconfig var and test and tools handling (silx-kit#127) 7b33e4f19 Fix some make output issues (silx-kit#126) 51d221848 Documentation fixes and fixes from testing 1.1.1 (silx-kit#125) 4ae30429c CMake: (fix) HDF5 1.14.0 (silx-kit#121) e1072ec5b Update Github actions (silx-kit#118) b021532ea Fix leak and consistify generic API with ZFP C API (silx-kit#117) 06408bb22 Enable CMake Testing (silx-kit#116) eb5440043 Fix version info in docs ad61dfa41 Revert "rework feat-cmake_tests CMake and replace scripts (silx-kit#111)" (silx-kit#115) 03b86413f rework feat-cmake_tests CMake and replace scripts (silx-kit#111) 08116fa9e Update README.md (silx-kit#114) a10bd7bdb Merge branch 'master' of github.com:LLNL/H5Z-ZFP 1660d94a4 Fix h5repack test (silx-kit#107) fd01bf1d7 mention generic interface 8d5ec2e74 Update docs (silx-kit#106) c76f847d9 Added new endianness test (silx-kit#102) 8acf8244b fix reading of byte-swapped input files (silx-kit#95) (silx-kit#101) 62ab4eb6d Minor code clean-up. (silx-kit#103) 60032f640 Bugfix/hdf5 1.14.0 (silx-kit#99) 8fad85d72 CMake: (fix) MPI parallel HDF5 1.14.0 (silx-kit#97) e81aec114 Don't flag a skipped test as a failed test. (silx-kit#94) git-subtree-dir: src/H5Z-ZFP git-subtree-split: 092190c38d5760b3212ce4d96cced767b90aa189
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Using
32004
(LZ4) filter on obviously-compressible (OC) data not properly compressing dataExpected Behavior
h5ls -vr
shows very large utilization rate on OC data (20227.16% on Reproduction Section result)Current Behavior
h5ls -vr
shows 100.00% utilization on OC dataPossible Solution
#120
Steps to Reproduce
Context (Environment)
pip list | grep -e h5py -e numpy -e hdf h5py 2.10.0 hdf5plugin 3.0.0 numpy 1.19.2
Detailed Description
problem call path
fixed path
Possible Implementation
#120
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