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Correct. rsync doesn't pay attention to ctime as it can't set ctime to
arbitrary values.
On 10/14/11 14:37, Elliot Wilen wrote:
> Thanks, somehow I'd convinced myself that when I did a -vv, I could see
> larger files taking longer to "compare" than smaller files. But this was
> probably when actual syncs of those files were going on. Retest shows you're
> right, of course.
>
> Frank's idea seems to be valid, though: why not compare the mtimes of
> directories and skip comparing the mtimes & sizes of files in those
> directories which haven't changed?
>
> Note 1: It looks like you'd still have to compare subdirs even if their
> parent dirs don't have a change in mtime.
>
> Note 2: Frank mentioned ctime but I think mtime is what you need to look at.
>
> Elliot Wilen
> Network Administrator/Postmaster
> MPR Associates, Inc.
> 2150 Shattuck Ave., Suite 800
> Berkeley, CA 94704
> Phone: (510) 849-4942
> Fax: (510) 849-0794
>
> www.mprinc.com
>
> On Oct 14, 2011, at 11:08 AM, Kevin Korb wrote:
>
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>> Rsync doesn't compare every file over and over unless you tell it to or
>> you don't tell it to sync timestamps (which is part of -a). Otherwise
>> it compares the file size and mtime. If those are the same it assumes
>> the contents are the same.
>>
>> The only reason you are getting a listing of all files is that you are
>> using -v twice. If you just use -iv you will only see files that rsync
>> is doing something with and why rsync is doing something with them.
- --
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Kevin Korb Phone: (407) 252-6853
Systems Administrator Internet:
FutureQuest, Inc. ke...@futurequest.net (work)
Orlando, Florida k...@sanitarium.net (personal)
Web page: http://www.sanitarium.net/
PGP public key available on web site.
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