I checked the version of Gzip and it's 1.3.5
Thanks a lot
Regards,
Romain
dan <[EMAIL PROTECTED]>
20/11/2007 17:41
A
Romain PICHARD/Mondeville/VIC/[EMAIL PROTECTED]
cc
[email protected],
[EMAIL PROTECTED], "Les Mikesell"
<[EMAIL PROTECTED]>, [EMAIL PROTECTED]
Objet
Re: [BackupPC-users] adjusting compression level
the video and mp3 files should see virtually zero compression but exe
files should do a little and the excel and word doc files should be about
1/2 the size.
so strange.
what is your operating system and version? maybe your gzip tools is
broken or a bad version..
On Nov 20, 2007 9:34 AM, <[EMAIL PROTECTED]> wrote:
Thanks a lot for your answer.
I checked the type of compression in the config.pl and it's Gzip (
$Conf{ArchiveComp}='gzip'; ).
I wiil continue with levels 7, 8 and 9 to see the difference.
Yes I've got several types of files, mp3, videos, .doc, .xls, .rar, .iso,
.exe, etc....
Thank you.
Romain
dan <[EMAIL PROTECTED]>
20/11/2007 17:08
A
"Les Mikesell" <[EMAIL PROTECTED]>
cc
Romain PICHARD/Mondeville/VIC/[EMAIL PROTECTED],
[email protected],
[EMAIL PROTECTED] , [EMAIL PROTECTED]
Objet
Re: [BackupPC-users] adjusting compression level
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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