Moinak Ghosh
a61fea75da
Fix incorrect chunk size initialization from a previous commit.
2013-09-03 23:23:11 +05:30
Moinak Ghosh
b236638e72
Remove confusing option with little practical utility.
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Update test cases and documentation.
2013-09-01 15:02:28 +05:30
Moinak Ghosh
12a2b8ed63
Additional error checks in RLE encoding for bsdiff extra data.
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Add a buffer overflow check in RLE encoder.
Avoid calling RLE encoding if extra data length is zero.
Make 2KB block size default for non-global deduplication.
Update test cases for new 2KB block size support.
2013-08-30 19:51:43 +05:30
Moinak Ghosh
2e62be3c9c
Truncate password file after zeroing.
2013-08-29 22:03:08 +05:30
Moinak Ghosh
9a7a8e84fe
Add more example usage.
2013-08-28 21:01:25 +05:30
Moinak Ghosh
be1d0857a6
Avoid calling compression routine when dedupe reduces data size to zero.
2013-08-28 09:46:10 +05:30
Moinak Ghosh
cee8d88ded
Bump version for upcoming release.
2013-08-27 21:41:16 +05:30
Moinak Ghosh
7685adefb2
Default compression level only when compressing.
2013-08-24 23:15:07 +05:30
Moinak Ghosh
fc65111bae
Fix issue #11 .
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Increase default chunk size to 8MB.
Use default compression level of 1 (fast mode) for LZ4.
2013-08-24 22:58:50 +05:30
Moinak Ghosh
3db5188445
Support for deduplication using 2KB block size.
2013-08-19 13:38:52 +05:30
Moinak Ghosh
ef98422bd4
Add basic file format documentation.
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Reduce memory threshold for switching to Similarity based Deduplication.
2013-08-18 20:11:20 +05:30
Moinak Ghosh
58f3113558
Avoid unnecessary re-hashing of 64-bit keys of the segment index.
2013-08-17 22:08:55 +05:30
Moinak Ghosh
d31c6433c2
Update free memory computation to include cached buffers.
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Fix a potential rare corner case.
2013-08-17 11:31:44 +05:30
Moinak Ghosh
413a2a2fb1
Update Changelog and bump version for 2.3 release.
2013-08-10 10:25:41 +05:30
Moinak Ghosh
f35d0ff4ef
Fix multiple crashes for some corner cases.
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Increase max block size for variable dedup block sizes greater than 16KB.
Update test cases and fix a test script bug.
2013-08-09 21:55:06 +05:30
Moinak Ghosh
fe18afbcf4
Use wrapper script to set paths when launching pcompress from build directory.
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Use smaller max block size when doing global dedupe.
Fix init of executable name.
2013-08-07 22:03:52 +05:30
Moinak Ghosh
f34cfb1aa6
Make data partitioning between threads more effective.
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Remove unnecessary computation to make Fixed block chunking faster.
2013-07-21 09:31:59 +05:30
Moinak Ghosh
2a218e9da5
Fix Dedupe Mode initialization.
2013-07-12 18:21:49 +05:30
Moinak Ghosh
8b73303488
Some minor code cleanup.
2013-07-05 22:22:11 +05:30
Moinak Ghosh
e10a13ad94
Improve accuracy of the KMV sketch computation and speed it up.
2013-07-03 19:24:06 +05:30
Moinak Ghosh
6b67e98747
Reduce similarity indicators to reduce memory use with low impact on dedupe ratio.
2013-06-30 22:38:05 +05:30
Moinak Ghosh
de0695e2c5
Add missing init of rabin block size.
2013-06-29 19:13:22 +05:30
Moinak Ghosh
17db67564d
Reduce a rollign hash parameter for a slight speedup with no side effect.
2013-06-24 21:13:32 +05:30
Moinak Ghosh
6432c76b4b
Update README formatting yet again - ugh.
2013-06-16 21:12:04 +05:30
Moinak Ghosh
52723cbbac
Update README formatting.
2013-06-16 21:09:04 +05:30
Moinak Ghosh
92be5a17f0
Update README with pointers to relevant analysis and documentation.
2013-06-16 20:46:17 +05:30
Moinak Ghosh
c0dd0102a5
A few minor fixes.
2013-06-14 22:25:01 +05:30
Moinak Ghosh
63370caee9
Remove an rpath entry meant for testing.
2013-06-03 21:28:20 +05:30
Moinak Ghosh
7743792018
Make default symbol visibility to hidden with explicit public visibility specified.
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Add missing static scope to a few more places.
2013-06-03 20:51:00 +05:30
Moinak Ghosh
c859cf35d5
Make Pcompress functionality into a library - initial changes.
2013-06-02 20:54:33 +05:30
Moinak Ghosh
8db0bef184
Bump version and update Changelog for 2.2 release.
2013-05-28 21:45:19 +05:30
Moinak Ghosh
ab1ced942d
Update invalid environment variable handling to actually fail rather than auto-correct.
2013-05-28 21:38:35 +05:30
Moinak Ghosh
e9ce7a5ed2
Fix a crash with invalid PCOMPRESS_CHUNK_HASH_GLOBAL.
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Update testcase to correctly detect core files.
2013-05-26 23:38:10 +05:30
Moinak Ghosh
ddaa3b6b6d
Drastic simplification of Min-heap code and resultant Delta speedup.
2013-05-25 17:34:38 +05:30
Moinak Ghosh
0a1e3b39ef
Correspond segment size to chunk size for Segmented Dedupe for better accuracy.
2013-05-15 22:20:45 +05:30
Moinak Ghosh
d89c95225a
Add a testcase for issue #10 .
2013-05-12 14:19:26 +05:30
Moinak Ghosh
cbc0c84b12
Fix issue #10 .
2013-05-12 11:54:40 +05:30
Moinak Ghosh
41b036adac
Fix issue #8 .
2013-05-10 19:51:24 +05:30
Moinak Ghosh
8b3761ee81
Update Changelog, docs and bump version for 2.1 release.
2013-05-09 18:53:11 +05:30
Moinak Ghosh
a755d59dff
Add more tests covering Segmented Global Dedupe.
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Fix some tests.
2013-05-07 22:30:36 +05:30
Moinak Ghosh
2740a00c76
Switch location of Dedupe context creation to allow correct index memory sizing.
2013-05-07 20:50:13 +05:30
Moinak Ghosh
969e242b31
Update README with details of Global Dedupe block hash selection.
2013-05-06 23:50:56 +05:30
Moinak Ghosh
c27317d7da
Add SSE2 optimizations for Segmented Dedupe.
2013-05-05 23:34:26 +05:30
Moinak Ghosh
6ecc400571
Fix segment offset sorting.
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Get rid of incorrect duplicate checks in index.
2013-05-05 18:50:52 +05:30
Moinak Ghosh
c6da2325e3
Allow SKEIN to be used as a Global Dedupe chunk lookup hash.
2013-05-04 15:59:29 +05:30
Moinak Ghosh
0cf94c308a
Add a qsort variant optimized for integers and use in global dedupe.
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Cleanup LZMA CRC64/32 declarations and add a header.
Fix heapq header.
2013-05-03 22:06:55 +05:30
Moinak Ghosh
c43e99f422
Use openmp parallelism always for chunk hash computation during Global Dedupe.
2013-05-02 23:24:43 +05:30
Moinak Ghosh
120877348c
Use SHA256 for Global Dedupe chunk lookup hash by default.
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Allow changing Global Dedupe chunk lookup hash via env variable.
2013-05-02 00:05:05 +05:30
Moinak Ghosh
6e4d45b644
Fix crash with some older GCC versions. Reported in issue #7 .
2013-05-01 19:27:43 +05:30
Moinak Ghosh
eae16b82d3
Fix issue #7 .
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Ensure tempfile cleanup even with error abort.
2013-05-01 18:01:17 +05:30