Compression tools Compared

[Tom Wilson]

On Saturday 13 August 2005 12:58 am, Jerry McBride wrote:
[snip]
> The two mentioned compression tools work pretty much like gzip. You tar up
> your files, pipe to the compression filter and then on to the target file.
> Below is a small example of what I've been seeing here at the shack.
>
> -rw-r--r--  1 root root 12359680 Aug 12 23:57 backup.tar
> -rw-r--r--  1 root root  3536665 Aug 13 00:01 backup.tar.7z
> -rw-r--r--  1 root root  4438465 Aug 13 00:08 backup.tar.bz2
> -rw-r--r--  1 root root  4747637 Aug 13 00:03 backup.tar.gz
> -rw-r--r--  1 root root  2731412 Aug 13 00:10 backup.tar.lzma
> -rw-r--r--  1 root root  5125474 Aug 13 00:16 backup.tar.lzop
>
> What you're seeing are the results of compressing /lib on my gentoo powered
> laptop. I've not bothered with timing the processes as the better
> compression rates are at the cost of speed and memory usage. Not good for
> "while you wait" processing, but just plain perfect for backups and
> what-have-you on servers... One side note, 7za does not record user/group
> info... It's a shame too as this make it pretty much useless in most linux
> backup scenarios. This lzma creature is simply awesome.
>
> You can find it at: http://martinus.geekisp.com/rublog.cgi/Projects/LZMA
>
> Cheers all....

The 7z and LZMA are the from the 7-zip compression program.  I love this zip 
program!  I use it on winders and linux.  I found it one day when I was sick 
of messing with winzip on a lusers desktop at work.  Now 7-zip is on all the 
desktops and my personal machines too.

--
Tom Wilson