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  • #2137

Closed
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Opened Feb 06, 2021 by Laurențiu Nicola@lnicolaDeveloper

Upgrade SuperBuild to GDAL 3.2.1, libtiff 4.1 (or 4.2) add libdeflate

The GDAL 3.2.0 release notes mention:

  • Add optional libdeflate dependency for faster Deflate compression/decompression

This is the last test case from #2136:

Format Size Compression time Compression time (MT) Decompression time
Uncompressed 241 187 444 b N/A N/A N/A
DEFLATE (GDAL 3.2.0) 159 937 804 b 2.053s 0.392s 1.722s
DEFLATE (GDAL 3.1.0) 159 740 861 b 6.638s 0.572s 1.311s

There's a huge improvement in DEFLATE performance in 3.2.0.

This might need adding a new library (libdeflate) to SuperBuild and also upgrading libtiff.

Edited Feb 06, 2021 by Laurențiu Nicola
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Reference: orfeotoolbox/otb#2137