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Rename and add short ldm parameters in cli

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Stella Lau
2017-09-05 21:11:18 -07:00
parent 98b85426f1
commit c706de5395
5 changed files with 27 additions and 30 deletions
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programs/zstd.1.md
+9 -9
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@@ -333,7 +333,7 @@ The list of available _options_:
Default _ovlog_ is 6, which means "reload `windowSize / 8`".
Exception : the maximum compression level (22) has a default _ovlog_ of 9.
- `ldmHashLog`=_ldmHlog_, `ldmHlog`=_ldmHlog_:
- `ldmHashLog`=_ldmhlog_, `ldmhlog`=_ldmhlog_:
Specify the maximum size for a hash table used for long distance matching.
This option is ignored unless long distance matching is enabled.
@@ -341,18 +341,18 @@ The list of available _options_:
Bigger hash tables usually improve compression ratio at the expense of more
memory during compression and a decrease in compression speed.
The minimum _ldmHlog_ is 6 and the maximum is 26 (default: 20).
The minimum _ldmhlog_ is 6 and the maximum is 26 (default: 20).
- `ldmSearchLength`=_ldmSlen_, `ldmSlen`=_ldmSlen_:
- `ldmSearchLength`=_ldmslen_, `ldmslen`=_ldmslen_:
Specify the minimum searched length of a match for long distance matching.
This option is ignored unless long distance matching is enabled.
Larger/very small values usually decrease compression ratio.
The minumum _ldmSlen_ is 4 and the maximum is 4096 (default: 64).
The minumum _ldmslen_ is 4 and the maximum is 4096 (default: 64).
- `ldmBucketSizeLog`=_ldmBucketSizeLog_:
- `ldmBucketSizeLog`=_ldmblog_, `ldmblog`=_ldmblog_:
Specify the size of each bucket for the hash table used for long distance
matching.
@@ -361,9 +361,9 @@ The list of available _options_:
Larger bucket sizes improve collision resolution but decrease compression
speed.
The minimum _ldmBucketSizeLog_ is 0 and the maximum is 8 (default: 3).
The minimum _ldmblog_ is 0 and the maximum is 8 (default: 3).
- `ldmHashEveryLog`=_ldmHashEveryLog_:
- `ldmHashEveryLog`=_ldmhevery_, `ldmhevery`=_ldmhevery_:
Specify the frequency of inserting entries into the long distance matching
hash table.
@@ -372,8 +372,8 @@ The list of available _options_:
Larger values will improve compression speed. Deviating far from the
default value will likely result in a decrease in compression ratio.
The default value is `wLog - ldmHlog`.
The default value is `wlog - ldmhlog`.
### -B#:
Select the size of each compression job.
This parameter is available only when multi-threading is enabled.