jpeg2000 compression

Gzip (Gnu-zip) is a compression technique. After gzip compressed page size can be changed to the original 30% or even smaller, so that users browse the page when the speed will be much more. Gzip compressed page need both browser and server support, is actually server-side compression, upload browser after the browser decompression and resolution. Browsers don't need us to worry because the vast majority of

The string compression method provided by PHP has 1.gzcompress-compress a string This function compress the given string using the ZLIB data format. 2.gzencode-create a gzip compressed string This function returns a compressed version of the "Input data compatible" with the output of the "gzip program" 3.gzdeflate-deflate a string This function compress the given string using the DEFLATE data format. 4.bzcompress-to compress a string into BZIP2

Tags: mysql optimization innodb compressedFirst, prefaceInnodb Plugin engine began to introduce a variety of formats of row storage mechanism, currently supports: Antelope, barracuda two kinds. Where Barracuda is compatible with Antelope format.In addition, the Innodb plugin supports the row data compression feature, but only if the Barracuda row storage format is used.The table space enables compression on

6.1 Compression Packaging IntroductionWindows compression:. rar,.zip,.7zLinux compression:. zip,.gz,.bz2,.xz,.tar.gz,.tar.bz2,.tar.xz 6.2gzip Compression Toolgzip filename Compressed file , format GZ, compressed after source file disappears.gzip-d filename.gz unzip the file.gzip-[1-9] filename.gz Compressed files

Introduction to the Compression toolCompress the server's frequently accessed files, such as Web pages, to compress and save bandwidth resourcesLinux packaging tools, suffix name in Linux does not mean the actual meaning, but in order to facilitate the separation of file types, the suffix name is a specification to name. zip. gz. bz2. XZ compression format. tar.gz. tar.bz2. TAR.XZ Packaging formatGzip

First, Gzip introduction Gzip is a GNU zip abbreviation, it is a GNU Free software file compression program, also often used to express the gzip file format. The authors of the software are Jean-loup gailly and Mark Adler. October 31, 1992 the first public release, the version number is 0.1, the current stable version is 1.2.4. Gzip is primarily used for file compression on UNIX systems. We often use the fi

However, the volume is still very large. Therefore, in daily work, how to reduce the size of SQL Server backup files is a concern of many database administrators. Maybe Microsoft's database product design experts have heard the voices of many database administrators. In the latest MySQL 2008 database, the concept of backup compression is put forward. The basic principle is the same as using RAR and other compr