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Moinak Ghosh 2013-01-29 18:59:19 -08:00
parent e05a58f035
commit 02ac25e560
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index.html
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@ -61,7 +61,7 @@
<li> <li>
<strong>Multiple Algorithms</strong>: Support for multiple compression algorithms like LZMA, LZMA-Multithreaded, Bzip2, PPMD, LZ4 etc. Adaptive modes allow selecting an algorithm per chunk based on heuristics.</li> <strong>Multiple Algorithms</strong>: Support for multiple compression algorithms like LZMA, LZMA-Multithreaded, Bzip2, PPMD, LZ4 etc. Adaptive modes allow selecting an algorithm per chunk based on heuristics.</li>
<li> <li>
<strong>Strong Data Integrity</strong>: Strong Data Integrity verification with option of using SKEIN, SHA2 or KECCAK. Headers are also checksummed using CRC32.</li> <strong>Strong Data Integrity</strong>: Strong Data Integrity verification with option of using BLAKE2, SHA2 or KECCAK. Headers are also checksummed using CRC32.</li>
<li> <li>
<strong>Filters</strong>: Pre-compression filters: LZP, Delta2. These improve compression ratio across the board at a little extra computational cost.</li> <strong>Filters</strong>: Pre-compression filters: LZP, Delta2. These improve compression ratio across the board at a little extra computational cost.</li>
<li> <li>
@ -186,14 +186,14 @@ Other flags:
datasets. datasets.
'-S' &lt;cksum&gt; '-S' &lt;cksum&gt;
- Specify chunk checksum to use: CRC64, SKEIN256, SKEIN512, SHA256 and - Specify chunk checksum to use: CRC64, BLAKE2-256, BLAKE2-512, SHA256 and
SHA512. Default one is SKEIN256. The implementation actually uses SKEIN SHA512. Default one is BLAKE2-256. The implementation actually uses SKEIN
512-256. This is 25% slower than simple CRC64 but is many times more 512-256. This is 25% slower than simple CRC64 but is many times more
robust than CRC64 in detecting data integrity errors. SKEIN is a robust than CRC64 in detecting data integrity errors. BLAKE is a
finalist in the NIST SHA-3 standard selection process and is one of finalist in the NIST SHA-3 standard selection process and is one of
the fastest in the group, especially on x86 platforms. BLAKE is faster the fastest in the group, especially on x86 platforms. BLAKE2 is faster
than SKEIN on a few platforms. than BLAKE and even faster than MD5.
SKEIN 512-256 is about 60% faster than SHA 512-256 on x64 platforms. BLAKE2 512-256 is about 60% faster than SHA 512-256 on x64 platforms.
'-F' - Perform Fixed Block Deduplication. This is faster than fingerprinting '-F' - Perform Fixed Block Deduplication. This is faster than fingerprinting
based content-aware deduplication in some cases. However this is mostly based content-aware deduplication in some cases. However this is mostly

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params.json
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