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updated man page

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and added `--adapt` test in `playTests.sh`
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Yann Collet
2018-09-19 17:37:22 -07:00
parent 6b07a66aec
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programs/zstd.1.md
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@@ -137,10 +137,12 @@ the last one takes effect.
* `--adapt` :
`zstd` will dynamically adapt compression level to perceived I/O conditions.
Compression level adaptation can be observed live by using command `-v`.
Works with multi-threading and `--long` mode.
When not specified otherwise, uses a window size of 8 MB.
The feature works when combined with multi-threading and `--long` mode.
It does not work with `--single-thread`.
It sets window size to 8 MB by default (can be changed manually, see `wlog`).
Due to the chaotic nature of dynamic adaptation, compressed result is not reproducible.
Adaptation does not work with `--single-thread`.
_note_ : at the time of this writing, `--adapt` can remain stuck at low speed
when combined with multiple worker threads (>=2).
* `-D file`:
use `file` as Dictionary to compress or decompress FILE(s)
* `--no-dictID`: