ddidderr/zstd-rs
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bumped version number to v1.3.7

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updated documentation
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Yann Collet
2018-10-11 14:40:12 -07:00
parent 7ee135bd8e
commit 1e6208e75e
5 changed files with 59 additions and 19 deletions
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programs/zstd.1
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@@ -1,5 +1,5 @@
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.TH "ZSTD" "1" "September 2018" "zstd 1.3.5" "User Commands"
.TH "ZSTD" "1" "October 2018" "zstd 1.3.7" "User Commands"
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.SH "NAME"
\fBzstd\fR \- zstd, zstdmt, unzstd, zstdcat \- Compress or decompress \.zst files
@@ -123,8 +123,8 @@ Compress using \fB#\fR working threads (default: 1)\. If \fB#\fR is 0, attempt t
Does not spawn a thread for compression, use a single thread for both I/O and compression\. In this mode, compression is serialized with I/O, which is slightly slower\. (This is different from \fB\-T1\fR, which spawns 1 compression thread in parallel of I/O)\. This mode is the only one available when multithread support is disabled\. Single\-thread mode features lower memory usage\. Final compressed result is slightly different from \fB\-T1\fR\.
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.TP
\fB\-\-adapt\fR
\fBzstd\fR will dynamically adapt compression level to perceived I/O conditions\. Compression level adaptation can be observed live by using command \fB\-v\fR\. The feature works when combined with multi\-threading and \fB\-\-long\fR mode\. It does not work with \fB\-\-single\-thread\fR\. It sets window size to 8 MB by default (can be changed manually, see \fBwlog\fR)\. Due to the chaotic nature of dynamic adaptation, compressed result is not reproducible\. \fInote\fR : at the time of this writing, \fB\-\-adapt\fR can remain stuck at low speed when combined with multiple worker threads (>=2)\.
\fB\-\-adapt[=min=#,max=#]\fR
\fBzstd\fR will dynamically adapt compression level to perceived I/O conditions\. Compression level adaptation can be observed live by using command \fB\-v\fR\. Adaptation can be constrained between supplied \fBmin\fR and \fBmax\fR levels\. The feature works when combined with multi\-threading and \fB\-\-long\fR mode\. It does not work with \fB\-\-single\-thread\fR\. It sets window size to 8 MB by default (can be changed manually, see \fBwlog\fR)\. Due to the chaotic nature of dynamic adaptation, compressed result is not reproducible\. \fInote\fR : at the time of this writing, \fB\-\-adapt\fR can remain stuck at low speed when combined with multiple worker threads (>=2)\.
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.TP
\fB\-D file\fR