Compression tools Compared

[Jerry McBride]

On Saturday 13 August 2005 09:04 am, Tom Wilson wrote:
> 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.
>

For some reason, under gentoo, when emerging (installing) 7za, lzma does not 
get installed. Perhaps not even built. However, the url I mention, provides a 
stand-alone, compilable tool.

Cheers.

P.S. lzma kicks the feathers out of 7z and 7-zip.... :')

-- 

******************************************************************************
                     Registered Linux User Number 185956
              FSF Associate Member number 2340 since 05/20/2004
             Join me in chat at #linux-users on irc.freenode.net
    Buy an Xbox for $149.00, run linux on it and Microsoft loses $150.00!
     11:52am  up 26 days, 11:51,  1 user,  load average: 0.00, 0.00, 0.00