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Add explanation for split=100

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Jennifer Liu
2018-07-11 15:50:28 -07:00
parent 5021441d86
commit 612b346ed5
3 changed files with 6 additions and 3 deletions
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programs/zstd.1.md
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@@ -228,7 +228,7 @@ Compression of small files similar to the sample set will be greatly improved.
If _d_ is not specified, then it tries _d_ = 6 and _d_ = 8.
If _k_ is not specified, then it tries _steps_ values in the range [50, 2000].
If _steps_ is not specified, then the default value of 40 is used.
If _split_ is not specified or split <= 0 or split > 100, then the default value of 100 is used.
If _split_ is not specified or split <= 0, then the default value of 100 is used.
Requires that _d_ <= _k_.
Selects segments of size _k_ with highest score to put in the dictionary.
@@ -238,6 +238,8 @@ Compression of small files similar to the sample set will be greatly improved.
algorithm will run faster with d <= _8_.
Good values for _k_ vary widely based on the input data, but a safe range is
[2 * _d_, 2000].
If _split_ is 100, all input samples are used for both training and testing
to find optimal _d_ and _k_ to build dictionary.
Supports multithreading if `zstd` is compiled with threading support.
Examples: