something is fishy about your compression %. you should definitely get more
compression. in the config file, what type of compression are you using?
you should see much great compression ratios and you should see some
staggering compression times with the level 8 and 9 compression levels.
something like 3-4 times as long as a level 3 and only 2-5% more
compression.
are your files already compresses or are the video or mp3s?
On Nov 20, 2007 8:56 AM, Les Mikesell <[EMAIL PROTECTED]> wrote:
> [EMAIL PROTECTED] wrote:
> >
> > Hello,
> >
> > I installed BackupPC 3.0.0 on a Fedora Core 6 (server) in order to back
> > up Windows XP client.
> > For your information, I use rsyncd.
> >
> > I'm checking and testing all differents compression levels to compare
> them.
> > The test is based on 3.00 Gb in full backupc. There are more than 400
> > files to back up.
> >
> > For the moment, I tested with the levels 1, 2, 3, 4, 5, 6 and without
> > compression (i.e. 0) and the difference
> > between the levels is very very small.
> >
> > For example :
> >
> > Without Compression : Time : 57.4 min / Size : 3055.1 Mo /
> > Compression : 0.0 %
> > Level 1 : Time : 63.0 min / Size (without compression) : 3055.1 Mo /
> > Size (after compression) : 2997.4 Mo / Compression : 1.9 %
> > Level 2 : Time : 65.9 min / Size (without compression) : 3055.1 Mo /
> > Size (after compression) : 2996.3 Mo / Compression : 1.9 %
> > Level 3 : Time : 58.0 min / Size (without compression) : 3055.1 Mo /
> > Size (after compression) : 2995.2 Mo / Compression : 2.0 %
> > Level 4 : Time : 59.2 min / Size (without compression) : 3055.1 Mo /
> > Size (after compression) : 2994.6 Mo / Compression : 2.0 %
> > Level 5 : Time : 62.8 min / Size (without compression) : 3055.1 Mo /
> > Size (after compression) : 2993.6 Mo / Compression : 2.0 %
> > Level 6 : Time : 59.3 min / Size (without compression) : 3055.1 Mo /
> > Size (after compression) : 2993.0 Mo / Compression : 2.0 %
> >
> > Ok it's more and more compressed when the compression level increase but
> > it's very light.
> > Do you think that my tests are " normal " ?
>
> That doesn't sound anywhere near normal unless your files are already
> compresssed or gif/jpeg, etc. where compression is standard, or consist
> of encrypted or random data. I'd expect text files to compress by 50%
> or so and database files with fixed width fields much more.
>
> --
> Les Mikesell
> [EMAIL PROTECTED]
>
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