mirror of
https://github.com/HDFGroup/hdf5.git
synced 2025-03-31 17:10:47 +08:00
b994a10148
Task for HDFFV-7862 - Select data by chunk direction to improve performance in h5repack Description: h5repack sometimes became very slow when handling big chunked datasets in certain cases. (when chunk boundary doesn't match with a hyperslab boundary.) The main issue was from figuring out a hypeslab without considering chunk boundary to read from and write to such datasets. The update was made to figure out a better hyperslab unit with considering chunk boundary to improve performance for such cases prior to the update. Tested: jam (linux32-LE), koala (linux64-LE), ostrich (linuxppc64-BE), tejeda (mac32-LE), linew (solaris-BE), Windows