Re: more info on 25gig files
[email protected] Mon, 04 Jul 2005 19:02:53 +0300
| Newsgroups | gmane.network.librsync.general,gmane.comp.sysutils.backup.rdiff-backup.general |
|---|---|
| Message-ID | <[email protected]> |
One more thing: Donovan Baarda wrote: > My gut feeling is an additionalwhole file hash calculated > alongside the blocksum hashes would not be a significant cost... > particularly compared to the rollsum+hashtable lookups at every byte. When the files mostly match, "rdiff signature" and "rdiff delta" do similar things and indeed run almost exactly as fast. So for that case you can use the benchmarks given earlier to estimate the overhead. Eran ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click