Comment 5 for bug 683849

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Guilherme Salgado (salgado) wrote : Re: [Bug 683849] Re: Consider using xz for compressing images

On Thu, 2011-01-06 at 13:47 +0000, Loïc Minier wrote:
> If your gzipped tarball is properly created with --rsyncable, the
> resulting tgz can be rsync-ed faster if you have a local copy of a
> previous tarball because rsync identifies pieces which have not changed
> (most of the files remain identical, so most of the .tar.gz is identical
> to previous ones).
>
> This is unrelated to rsync's compression.

Right, but what I was wondering was about the -z switch to rsync that
Michael proposed. That shouldn't make a difference, or am I
misunderstanding things here?

To me it seems like the best alternative is to have rsyncable/fixed-name
dailies so that we can easily/cheaply sync them. IOW, mark this bug
invalid.