q*p
4 楼
现在7z都过时了,XZ才是王道。你看,Texlive、Cygwin都换成了XZ压缩格式。
现在开源软件一般都是这3种压缩格式
gz、bz2、xz
例如,Emacs软件,从24.3开始bz2格式已经被抛弃了,现在都是gz和xz发布的。
从24.2看,bz2介乎gz和xz之间。gz有压缩速度快的优势,xz则是压缩比大的优势。
参考
http://gnu.opencube.ca/emacs/
【在 t*****z 的大作中提到】
: 我一般用bzip2 -9。我试验了一些大型文本文件发现,lzma(即7z)和bzip2相比压缩
: 率没有显著优势,时间倒很长。
现在开源软件一般都是这3种压缩格式
gz、bz2、xz
例如,Emacs软件,从24.3开始bz2格式已经被抛弃了,现在都是gz和xz发布的。
从24.2看,bz2介乎gz和xz之间。gz有压缩速度快的优势,xz则是压缩比大的优势。
参考
http://gnu.opencube.ca/emacs/
【在 t*****z 的大作中提到】
: 我一般用bzip2 -9。我试验了一些大型文本文件发现,lzma(即7z)和bzip2相比压缩
: 率没有显著优势,时间倒很长。
t*z
5 楼
7z和xz用的都是lzma。
【在 q*p 的大作中提到】
: 现在7z都过时了,XZ才是王道。你看,Texlive、Cygwin都换成了XZ压缩格式。
: 现在开源软件一般都是这3种压缩格式
: gz、bz2、xz
: 例如,Emacs软件,从24.3开始bz2格式已经被抛弃了,现在都是gz和xz发布的。
: 从24.2看,bz2介乎gz和xz之间。gz有压缩速度快的优势,xz则是压缩比大的优势。
: 参考
: http://gnu.opencube.ca/emacs/
【在 q*p 的大作中提到】
: 现在7z都过时了,XZ才是王道。你看,Texlive、Cygwin都换成了XZ压缩格式。
: 现在开源软件一般都是这3种压缩格式
: gz、bz2、xz
: 例如,Emacs软件,从24.3开始bz2格式已经被抛弃了,现在都是gz和xz发布的。
: 从24.2看,bz2介乎gz和xz之间。gz有压缩速度快的优势,xz则是压缩比大的优势。
: 参考
: http://gnu.opencube.ca/emacs/
q*p
6 楼
源于lzma,但青出于蓝而胜于蓝。
7z是LZMA,xz是LZMA2。
xz现在大行其道。
XZ Utils
XZ Utils is free general-purpose data compression software with high
compression ratio. XZ Utils were written for POSIX-like systems, but also
work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.
The core of the XZ Utils compression code is based on LZMA SDK, but it has
been modified quite a lot to be suitable for XZ Utils. The primary
compression algorithm is currently LZMA2, which is used inside the .xz
container format. With typical files, XZ Utils create 30 % smaller output
than gzip and 15 % smaller output than bzip2.
XZ Utils consist of several components:
•liblzma is a compression library with API similar to that of zlib.
•xz is a command line tool with syntax similar to that of gzip.
•xzdec is a decompression-only tool smaller than the full-featured xz
tool.
•A set of shell scripts (xzgrep, xzdiff, etc.) have been adapted from
gzip to ease viewing, grepping, and comparing compressed files.
•Emulation of command line tools of LZMA Utils eases transition from
LZMA Utils to XZ Utils.
While liblzma has a zlib-like API, liblzma doesn't include any file I/O
functions. A separate I/O library is planned, which would abstract handling
of .gz, .bz2, and .xz files with an easy to use API.
Copy from xz官网 http://tukaani.org/xz/
【在 t*****z 的大作中提到】
: 7z和xz用的都是lzma。
7z是LZMA,xz是LZMA2。
xz现在大行其道。
XZ Utils
XZ Utils is free general-purpose data compression software with high
compression ratio. XZ Utils were written for POSIX-like systems, but also
work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.
The core of the XZ Utils compression code is based on LZMA SDK, but it has
been modified quite a lot to be suitable for XZ Utils. The primary
compression algorithm is currently LZMA2, which is used inside the .xz
container format. With typical files, XZ Utils create 30 % smaller output
than gzip and 15 % smaller output than bzip2.
XZ Utils consist of several components:
•liblzma is a compression library with API similar to that of zlib.
•xz is a command line tool with syntax similar to that of gzip.
•xzdec is a decompression-only tool smaller than the full-featured xz
tool.
•A set of shell scripts (xzgrep, xzdiff, etc.) have been adapted from
gzip to ease viewing, grepping, and comparing compressed files.
•Emulation of command line tools of LZMA Utils eases transition from
LZMA Utils to XZ Utils.
While liblzma has a zlib-like API, liblzma doesn't include any file I/O
functions. A separate I/O library is planned, which would abstract handling
of .gz, .bz2, and .xz files with an easy to use API.
Copy from xz官网 http://tukaani.org/xz/
【在 t*****z 的大作中提到】
: 7z和xz用的都是lzma。
t*z
7 楼
原来是这样,学习了!在我的工作中xz压缩率并不比bzip2高,所以我没有去用。我觉
得xz有个好处是原生支持多线程。
Utils.
【在 q*p 的大作中提到】
: 源于lzma,但青出于蓝而胜于蓝。
: 7z是LZMA,xz是LZMA2。
: xz现在大行其道。
: XZ Utils
: XZ Utils is free general-purpose data compression software with high
: compression ratio. XZ Utils were written for POSIX-like systems, but also
: work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.
: The core of the XZ Utils compression code is based on LZMA SDK, but it has
: been modified quite a lot to be suitable for XZ Utils. The primary
: compression algorithm is currently LZMA2, which is used inside the .xz
得xz有个好处是原生支持多线程。
Utils.
【在 q*p 的大作中提到】
: 源于lzma,但青出于蓝而胜于蓝。
: 7z是LZMA,xz是LZMA2。
: xz现在大行其道。
: XZ Utils
: XZ Utils is free general-purpose data compression software with high
: compression ratio. XZ Utils were written for POSIX-like systems, but also
: work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.
: The core of the XZ Utils compression code is based on LZMA SDK, but it has
: been modified quite a lot to be suitable for XZ Utils. The primary
: compression algorithm is currently LZMA2, which is used inside the .xz
M*t
8 楼
有windows的gui么?集成explorer的右键么?
【在 q*p 的大作中提到】
: 现在7z都过时了,XZ才是王道。你看,Texlive、Cygwin都换成了XZ压缩格式。
: 现在开源软件一般都是这3种压缩格式
: gz、bz2、xz
: 例如,Emacs软件,从24.3开始bz2格式已经被抛弃了,现在都是gz和xz发布的。
: 从24.2看,bz2介乎gz和xz之间。gz有压缩速度快的优势,xz则是压缩比大的优势。
: 参考
: http://gnu.opencube.ca/emacs/
【在 q*p 的大作中提到】
: 现在7z都过时了,XZ才是王道。你看,Texlive、Cygwin都换成了XZ压缩格式。
: 现在开源软件一般都是这3种压缩格式
: gz、bz2、xz
: 例如,Emacs软件,从24.3开始bz2格式已经被抛弃了,现在都是gz和xz发布的。
: 从24.2看,bz2介乎gz和xz之间。gz有压缩速度快的优势,xz则是压缩比大的优势。
: 参考
: http://gnu.opencube.ca/emacs/
j*g
9 楼
同问gui有吗?
g*t
11 楼
Lz竟问白痴问题,7zip比你的it知识靠谱的多,是开源的,
l*g
13 楼
最好用的是rar
从来没遇到过任何问题,不管是不是破解版,盗版
压缩文件即使坏掉只有一部分,也能解压出来一部分文件,除非坏的太厉害
从来没遇到过任何问题,不管是不是破解版,盗版
压缩文件即使坏掉只有一部分,也能解压出来一部分文件,除非坏的太厉害
w*x
20 楼
xz之类的话在win下解压麻烦死吧。在linux下倒是方便。
【在 q*p 的大作中提到】
: 现在7z都过时了,XZ才是王道。你看,Texlive、Cygwin都换成了XZ压缩格式。
: 现在开源软件一般都是这3种压缩格式
: gz、bz2、xz
: 例如,Emacs软件,从24.3开始bz2格式已经被抛弃了,现在都是gz和xz发布的。
: 从24.2看,bz2介乎gz和xz之间。gz有压缩速度快的优势,xz则是压缩比大的优势。
: 参考
: http://gnu.opencube.ca/emacs/
【在 q*p 的大作中提到】
: 现在7z都过时了,XZ才是王道。你看,Texlive、Cygwin都换成了XZ压缩格式。
: 现在开源软件一般都是这3种压缩格式
: gz、bz2、xz
: 例如,Emacs软件,从24.3开始bz2格式已经被抛弃了,现在都是gz和xz发布的。
: 从24.2看,bz2介乎gz和xz之间。gz有压缩速度快的优势,xz则是压缩比大的优势。
: 参考
: http://gnu.opencube.ca/emacs/
z*h
21 楼
xz貌似windows支持工具不多?
Utils.
【在 q*p 的大作中提到】
: 源于lzma,但青出于蓝而胜于蓝。
: 7z是LZMA,xz是LZMA2。
: xz现在大行其道。
: XZ Utils
: XZ Utils is free general-purpose data compression software with high
: compression ratio. XZ Utils were written for POSIX-like systems, but also
: work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.
: The core of the XZ Utils compression code is based on LZMA SDK, but it has
: been modified quite a lot to be suitable for XZ Utils. The primary
: compression algorithm is currently LZMA2, which is used inside the .xz
Utils.
【在 q*p 的大作中提到】
: 源于lzma,但青出于蓝而胜于蓝。
: 7z是LZMA,xz是LZMA2。
: xz现在大行其道。
: XZ Utils
: XZ Utils is free general-purpose data compression software with high
: compression ratio. XZ Utils were written for POSIX-like systems, but also
: work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.
: The core of the XZ Utils compression code is based on LZMA SDK, but it has
: been modified quite a lot to be suitable for XZ Utils. The primary
: compression algorithm is currently LZMA2, which is used inside the .xz
d*a
23 楼
7zip 现在也支持lzma2了
Utils.
【在 q*p 的大作中提到】
: 源于lzma,但青出于蓝而胜于蓝。
: 7z是LZMA,xz是LZMA2。
: xz现在大行其道。
: XZ Utils
: XZ Utils is free general-purpose data compression software with high
: compression ratio. XZ Utils were written for POSIX-like systems, but also
: work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.
: The core of the XZ Utils compression code is based on LZMA SDK, but it has
: been modified quite a lot to be suitable for XZ Utils. The primary
: compression algorithm is currently LZMA2, which is used inside the .xz
Utils.
【在 q*p 的大作中提到】
: 源于lzma,但青出于蓝而胜于蓝。
: 7z是LZMA,xz是LZMA2。
: xz现在大行其道。
: XZ Utils
: XZ Utils is free general-purpose data compression software with high
: compression ratio. XZ Utils were written for POSIX-like systems, but also
: work on some not-so-POSIX systems. XZ Utils are the successor to LZMA Utils.
: The core of the XZ Utils compression code is based on LZMA SDK, but it has
: been modified quite a lot to be suitable for XZ Utils. The primary
: compression algorithm is currently LZMA2, which is used inside the .xz
j*2
24 楼
压缩解压缩这种板上钉钉的算法,能有什么不靠谱的,出问题也是硬件问题,比如压缩
的内存某个字节坏了导致整个block crc不通过
的内存某个字节坏了导致整个block crc不通过
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