Language Selection

English French German Italian Portuguese Spanish

Gzip, Bzip2 and Lzma compared

Filed under
Software

There has recently been a discussion about GNU switching from bzip2 to lzma for their distributed tarballs. They still offer gzip tarballs as an alternative. However, Gentoo has been preferring the bzip2 tarballs mostly due to the improved pack ratio of bzip2.

Unfortunately, the software for lzma is not (yet) as mature as some would like. For example, the format of files produced has changed recently (in a compatible way, though). Also, the current incarnation of the canonical binaries (lzma-utils) by default links against libstdc++.so which is a huge headache for release engineering and the like.

How these distribution problems can/will be solved, remains to be seen. What I'm more interested in, is a comparison of the performance of the three packers. I had initially hoped to also compare the amount of I/O done and memory usage, but GNU time let me down there.

GNU time's manpage claims that it can record and output quite a few figures regarding I/O and memory usage. Unfortunately, I have not been able to make time report anything other than 0 for those interesting stats. Not wanting to debug time, I've chosen to do performance tests regarding pack ratio and execution time, instead.

More Here




More in Tux Machines

Why Good Linux Sysadmins Use Markdown

The Markdown markup language is perfect for writing system administrator documentation: it is lightweight, versatile, and easy to learn, so you spend your time writing instead of fighting with formatting. The life of a Linux system administrator is complex and varied, and you know that documenting your work is a big time-saver. A documentation web server shared by you and your colleagues is a wonderful productivity tool. Most of us know simple HTML, and can whack up a web page as easily as writing plain text. But using Markdown is better. Read more

Purism’s next product could be a smartphone that runs Linux/free software

Purism is a company that’s been developing laptops and tablets that run Linux-based, free and open source software for a few years. Now Purism is considering building a smartphone and the company is soliciting feedback from potential customers. The idea would be to release a Librem Phone that runs GNU/Linux rather than Android, and which offers security and privacy features to help set it apart from most other phones on the market. Read more

Cinnamon 3.2 in Linux Mint 18.1 Supports Vertical Panels, Better Accelerometers

After informing the community a few days ago about the Mintbox Mini Pro PC and the upcoming improvements and new features shipping with the XApps software projects in Linux Mint 18.1, Clement Lefebvre just published the monthly Linux Mint newsletter. Read more

Blender 2.78 Open-Source 3D Graphics Software Released with Spherical Stereo VR

Today, September 30, 2016, the Blender Foundation is proud to release Blender 2.78, the latest stable and most advanced version of the popular, open-source, free, and cross-platform Blender 3D modelling software. Blender 2.78 comes six months after the release of Blender 2.77, and it's a major update that adds numerous new features and improvements, among which we can mention rendering of spherical stereo images for VR (Virtual Reality), viewport rendering improvements, as well as brand new freehand curves drawing over surfaces. Moreover, the Grease Pencil received awesome improvements and it now doubles as both an animation and drawing tool, powerful new options have been added for B-Bones, it's now possible to import and export basic operators in the Alembic support, and the Cloth Physics feature received new Simulation Speed option and Dynamic Base Mesh support. Read more