[EMAIL PROTECTED] wrote:
>
> Hello,
>
> I would like to have an information about compression level.
>
> I'm still doing several tests about compression and I would like to 
> have your opinion about something :
> I think that there is a very little difference between level 1 and 
> level 9.
> I tought that I will be more.
>
> For example, with a directory (1GB - 1308 files : excel, word, pdf, 
> bmp, jpg, zip, ...) with compression level :
>
> 9 I have the result : 54.4% compressed (1st size : 1018.4 Mo / 
> compressed size : 464.5 Mo)
> 1 I have the result : 52.8% compressed (1st size : 1018.4 Mo / 
> compressed size : 480.5 Mo)
>
> Do you think that's correct / normal ?
I'll ask this again:  How are you ensuring that each compression test 
isn't reusing the compressed files that are already in the pool?  What 
is your test methodology?

I don't think BackupPC will update the pool with the smaller file even 
though it knows the source was identical, and some tests I just did 
backing up /tmp seem to agree.  Once compressed and copied into the 
pool, the file is not updated with future higher compressed copies.  
Does anyone know something otherwise?

Rich

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