Moinak Ghosh
47ebd5b752
Fix calculation of extra scratch space for Dedupe.
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Add missing return value check in small buffer Delta2.
Update test failure detection in test driver.
2013-01-03 22:25:14 +05:30
Moinak Ghosh
6b756eb165
Fix Delta2 handling for small buffers.
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Fix LZP handling during preprocessing.
Fix type flag handling during preprocessing.
Update test cases to use configurable list of test corpus files.
Update some more int64_t datatypes to uint64_t
Add a gitignore.
2013-01-02 22:56:21 +05:30
Moinak Ghosh
43f5acfa2d
Add more comments to code.
2012-12-31 23:27:31 +05:30
Moinak Ghosh
36d95276ee
Further improvements to Delta2 performance.
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Fix the byteswap macros.
Start adding assertions.
2012-12-28 22:12:38 +05:30
Moinak Ghosh
26a4f42506
Introduce strict compiler flags and fix scores of warnings/issues.
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Avoid different optimization flags for Dedupe sources.
Fix liberal mixing of uint64_t and int64_t (should all be uint64_t).
Fix corner case crash when decompressing.
2012-12-27 23:06:48 +05:30
Moinak Ghosh
063624d0d3
Fix Delta2 decode handling when not compressing.
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More debug statements and other minor changes.
2012-12-24 23:21:02 +05:30
Moinak Ghosh
d597f0f05c
Major enhancements to Delta2 encoding.
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Avoid transposing below-threshold spans. Reduces compression ratio.
Use little-endian storage format for numbers to optimize for x86.
Improve embedded table detection.
Reduce header sizes.
Get rid of Gcc's LTO flag. Causes a performance drop.
Fix preprocessing behavior when LZP does not compress but Delta2 works.
2012-12-23 23:50:45 +05:30
Moinak Ghosh
a43fdd7d2c
Improve Delta2 scanning speed and effectiveness.
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Add destination buffer overflow check in Delta2.
Add rough speed computation.
2012-12-23 00:44:56 +05:30
Moinak Ghosh
765b014018
More tweaks to Delta2 implementation.
2012-12-21 22:58:30 +05:30
Moinak Ghosh
9bd8146e88
Improve Delta2 performance.
2012-12-20 23:49:44 +05:30
Moinak Ghosh
e9c3b34ff5
Add debug build verbose messages to delta code.
2012-12-19 22:42:55 +05:30
Moinak Ghosh
c2df666daf
Major improvement to Delta2 encoding algorithm.
2012-12-18 23:32:55 +05:30
Moinak Ghosh
fb30b5c295
Enable building with alternate Zlib and Bzlib.
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Update README and comments.
Fix correct setting of output size when using Delta2 without LZP.
2012-12-16 23:17:04 +05:30
Moinak Ghosh
ef0191729e
Make Delta2 encoding independent of LZP.
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Tweak Delta2 parameters.
Update README and test cases.
2012-12-15 22:03:23 +05:30
Moinak Ghosh
a98778d62f
Fine tune transpose parameters.
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Fix minor nits.
2012-12-14 19:12:48 +05:30
Moinak Ghosh
b0f41c2888
Add matrix transpose to Delta2 encoding.
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Change confusing structure member name.
2012-12-13 21:18:16 +05:30
Moinak Ghosh
224fb529e9
Get rid of size_t in places where 64-bitness is assumed.
2012-12-09 10:15:06 +05:30
Moinak Ghosh
51249c858d
Work in progress Adaptive Delta Encoding.
2012-12-03 23:45:41 +05:30
