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

Python 3 Support Added To The GNOME Shell

The GNOME Shell 3.15.2 release fixes some visual glitching, improves the layout of the extension installation dialog, supports the CSS margin property, and offers other bug fixes and minor enhancements. Most notable to GNOME Shell 3.15.2 though is there's finally Python 3 support. Many GNOME components have long ported their Python 2 code to Python 3 while GNOME Shell's Python support has just received the Py3 treatment. Details on GNOME's overall Python 3 porting work can be found via this Wiki page. Read more

Clonezilla Live 2.3.1-15 Now Available with Check for 32-bit Libraries

Clonezilla Live is a Linux distribution based on DRBL, Partclone, and udpcast that lets users perform bare metal backup and recovery with ease. The developers have just upgraded the system and it's now at version 2.3.1-15. Read more

Workaround Found for Annoying Workspace Switcher Bug in Ubuntu 14.10

The virtual desktops on Ubuntu systems have been working very well in the last few editions, but it looks like there is a problem in Ubuntu 14.10, at least for the system I'm running. The desktop locks up with the workspace switcher activated. Read more

Inside Cisco's OpenStack Cloud Strategy

Cisco first got involved with the open-source OpenStack cloud platform in 2011 with the Bexar release and initially was focused mostly on networking. Over the last several years, Cisco's OpenStack involvement and product portfolio have grown beyond just networking. Read more