Re: [Duplicity-talk] --max-blocksize?

[Remy van Elst]

Hello Ken,

Thank you for the explanation! I understand time is a precious thing
hard to devide, so don't worry too much about it.

On 10/19/14 18:05, Kenneth Loafman wrote:
> Remy,
> 
> Sorry about not getting back to you sooner...
> 
> max_blocksize determines the size of the block examined for changes
> during the diff process.  For files < 1MB the blocksize is a constant of
> 512.  For files over 1MB the size is given by:
> 
>         file_blocksize = int((file_len / (2000 * 512)) * 512)
>         return min(file_blocksize, globals.max_blocksize)
> 
> where globals.max_blocksize is defaulted to 2048.  If you specify a
> larger max_blocksize, your difftar files will be larger, but your sigtar
> files will be smaller.  If you specify a smaller max_blocksize, the
> reverse occurs.  The --max-blocksize option should be in multiples of 512.
> 
> ...Thanks,
> ...Ken
> 
> 
> On Wed, Oct 1, 2014 at 2:51 PM, Remy van Elst <address@hidden
> <mailto:address@hidden>> wrote:
> 
>     duplicity --help shows me the following option:
> 
>       --max-blocksize=number
> 
>     What does it do and in what unit is the "number"? I can only find a
>     launchpad ticket for large files, the man page on the website does not
>     list this option. Is there any more info?
> 
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> 
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