Add zstdmt and -T0 to man page

diff --git a/programs/zstd.1 b/programs/zstd.1
index c6b2c2742e313bb56b95270ad8b8597f27dcbaba..b8389042edb17a43311f5814f39f78887f390d07 100644 (file)
--- a/programs/zstd.1
+++ b/programs/zstd.1
@@ -2,12 +2,15 @@
 .TH "ZSTD" "1" "April 2017" "zstd 1.1.5" "User Commands"
 .
 .SH "NAME"
-\fBzstd\fR \- zstd, unzstd, zstdcat \- Compress or decompress \.zst files
+\fBzstd\fR \- zstd, zstdmt, unzstd, zstdcat \- Compress or decompress \.zst files
 .
 .SH "SYNOPSIS"
 \fBzstd\fR [\fIOPTIONS\fR] [\-|<INPUT\-FILE>] [\-o <OUTPUT\-FILE>]
 .
 .P
+\fBzstdmt\fR is equivalent to \fBzstd \-T0\fR
+.
+.P
 \fBunzstd\fR is equivalent to \fBzstd \-d\fR
 .
 .P
@@ -98,7 +101,7 @@ unlocks high compression levels 20+ (maximum 22), using a lot more memory\. Note
 .
 .TP
 \fB\-T#\fR
-Compress using # threads (default: 1)\. This modifier is only available if \fBzstd\fR was compiled with multithreading support\.
+Compress using # threads (default: 1)\. If \fB#\fR is 0, attempt to detect the number of physical CPU cores and compress with that many threads\. This modifier is only available if \fBzstd\fR was compiled with multithreading support\.
 .
 .TP
 \fB\-D file\fR

diff --git a/programs/zstd.1.md b/programs/zstd.1.md
index 07c36f683ca6db4c90f7796dcec852c025577648..9044eb34e2618204d94dad0062871e0a58a220e0 100644 (file)
--- a/programs/zstd.1.md
+++ b/programs/zstd.1.md
@@ -1,11 +1,13 @@
-zstd(1) -- zstd, unzstd, zstdcat - Compress or decompress .zst files
-====================================================================
+zstd(1) -- zstd, zstdmt, unzstd, zstdcat - Compress or decompress .zst files
+============================================================================
 
 SYNOPSIS
 --------
 
 `zstd` [*OPTIONS*] [-|<INPUT-FILE>] [-o <OUTPUT-FILE>]
 
+`zstdmt` is equivalent to `zstd -T0`
+
 `unzstd` is equivalent to `zstd -d`
 
 `zstdcat` is equivalent to `zstd -dcf`
@@ -101,6 +103,8 @@ the last one takes effect.
     Note that decompression will also require more memory when using these levels.
 * `-T#`:
     Compress using # threads (default: 1).
+    If `#` is 0, attempt to detect the number of physical CPU cores and compress with
+    that many threads.
     This modifier is only available if `zstd` was compiled with multithreading support.
 * `-D file`:
     use `file` as Dictionary to compress or decompress FILE(s)