mirrors/zstd
0
0
Fork 0
mirror of https://github.com/facebook/zstd.git synced 2024-11-27 17:06:46 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1887 from bimbashrestha/doc-fix

Browse Source 
Fixing hashLog error 2^26=64Mib
This commit is contained in:
Yann Collet 2019-11-19 16:14:20 -08:00 committed by GitHub
commit c8fd2cf4c9
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 7 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
programs/zstd.1.md
View File

@ -402,7 +402,7 @@ The list of available _options_:
Bigger hash tables cause less collisions which usually makes compression
faster, but requires more memory during compression.
The minimum _hlog_ is 6 (64 B) and the maximum is 26 (128 MiB).
The minimum _hlog_ is 6 (64 B) and the maximum is 30 (1 GiB).
- `chainLog`=_clog_, `clog`=_clog_:
Specify the maximum number of bits for a hash chain or a binary tree.
@ -413,7 +413,8 @@ The list of available _options_:
compression.
This option is ignored for the ZSTD_fast strategy.
The minimum _clog_ is 6 (64 B) and the maximum is 28 (256 MiB).
The minimum _clog_ is 6 (64 B) and the maximum is 29 (524 Mib) on 32-bit platforms
and 30 (1 Gib) on 64-bit platforms.
- `searchLog`=_slog_, `slog`=_slog_:
Specify the maximum number of searches in a hash chain or a binary tree
@ -422,7 +423,7 @@ The list of available _options_:
More searches increases the chance to find a match which usually increases
compression ratio but decreases compression speed.
The minimum _slog_ is 1 and the maximum is 26.
The minimum _slog_ is 1 and the maximum is 'windowLog' - 1.
- `minMatch`=_mml_, `mml`=_mml_:
Specify the minimum searched length of a match in a hash table.
@ -447,7 +448,7 @@ The list of available _options_:
For all other strategies, this field has no impact.
The minimum _tlen_ is 0 and the maximum is 999.
The minimum _tlen_ is 0 and the maximum is 128 Kib.
- `overlapLog`=_ovlog_, `ovlog`=_ovlog_:
Determine `overlapSize`, amount of data reloaded from previous job.
@ -470,7 +471,7 @@ 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 _lhlog_ is 6 and the maximum is 26 (default: 20).
The minimum _lhlog_ is 6 and the maximum is 30 (default: 20).
- `ldmMinMatch`=_lmml_, `lmml`=_lmml_:
Specify the minimum searched length of a match for long distance matching.
@ -490,7 +491,7 @@ The list of available _options_:
Larger bucket sizes improve collision resolution but decrease compression
speed.
The minimum _lblog_ is 0 and the maximum is 8 (default: 3).
The minimum _lblog_ is 1 and the maximum is 8 (default: 3).
- `ldmHashRateLog`=_lhrlog_, `lhrlog`=_lhrlog_:
Specify the frequency of inserting entries into the long distance matching