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Diffstat (limited to '')
| -rw-r--r-- | src/xz/xz.1 | 47 |
1 files changed, 41 insertions, 6 deletions
diff --git a/src/xz/xz.1 b/src/xz/xz.1 index 7267b56e..e11f4ac2 100644 --- a/src/xz/xz.1 +++ b/src/xz/xz.1 @@ -5,7 +5,7 @@ .\" This file has been put into the public domain. .\" You can do whatever you want with this file. .\" -.TH XZ 1 "2022-10-25" "Tukaani" "XZ Utils" +.TH XZ 1 "2022-11-07" "Tukaani" "XZ Utils" . .SH NAME xz, unxz, xzcat, lzma, unlzma, lzcat \- Compress or decompress .xz and .lzma files @@ -1960,15 +1960,50 @@ and .B "xz \-\-robot \-\-info\-memory" prints a single line with three tab-separated columns: .IP 1. 4 -Total amount of physical memory (RAM) in bytes +Total amount of physical memory (RAM) in bytes. .IP 2. 4 -Memory usage limit for compression in bytes. -A special value of zero indicates the default setting, +Memory usage limit for compression in bytes +.RB ( \-\-memlimit\-compress ). +A special value of +.B 0 +indicates the default setting which for single-threaded mode is the same as no limit. .IP 3. 4 -Memory usage limit for decompression in bytes. -A special value of zero indicates the default setting, +Memory usage limit for decompression in bytes +.RB ( \-\-memlimit\-decompress ). +A special value of +.B 0 +indicates the default setting which for single-threaded mode is the same as no limit. +.IP 4. 4 +Since +.B xz +5.3.4alpha: +Memory usage for multi-threaded decompression in bytes +.RB ( \-\-memlimit\-mt\-decompress ). +This is never zero because a system-specific default value +shown in the column 5 +is used if no limit has been specified explicitly. +This is also never greater than the value in the column 3 +even if a larger value has been specified with +.BR \-\-memlimit\-mt\-decompress . +.IP 5. 4 +Since +.B xz +5.3.4alpha: +A system-specific default memory usage limit +that is used to limit the number of threads +when compressing with an automatic number of threads +.RB ( \-\-threads=0 ) +and no memory usage limit has been specified +.RB ( \-\-memlimit\-compress ). +This is also used as the default value for +.BR \-\-memlimit\-mt\-decompress . +.IP 6. 4 +Since +.B xz +5.3.4alpha: +Number of available processor threads. .PP In the future, the output of .B "xz \-\-robot \-\-info\-memory" |