Re: Intelligent mirroring

[Adam C Powell IV <hazelsct@mit.edu>]

Hello,

Martijn van Oosterhout wrote:

> On Wed, Aug 08, 2001 at 07:35:10PM -0400, Adam C Powell IV wrote:
>
> > Rsync is of course so slow because it must touch every byte of every 
> > file on the client and server.  This is important for archives where a 
> > lot of files are changing.  But .debs with a given filename never 
> > change, so most of the md4summing disk/CPU activity is totally useless.
>
> Check the docs for rsync, but IIRC it is possible to tell rsync to look at
> timestamps and filesizes and skip files if they match. That should reduce
> most files to a simple stat().
Hmm, no option to do that, but -c or --checksum does the opposite 
(md4sums all files).  I guess this means the default is to not md4sum 
when names, stamps and sizes don't change?

So, I guess this is already done.

Thanks,
--

-Adam P.

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