Forum Index  ViceVersa HOME         FAQ and Knowledge Base

 FAQForum FAQ   SearchSearch Forum  RegisterRegister 
 ProfileProfile   Log inLog in 

Speed up the comparison

 
Post new topic   Reply to topic     Forum Index -> Wish List
Author Message
stanleywong



Joined: 14 Nov 2007
Posts: 3

PostPosted: Wed Nov 14, 2007 6:33 pm    Post subject: Speed up the comparison Reply with quote

After the "initial" syncronise (A -->B) (each 500 GB harddisk), everytime when I add or delete the files from A, VV needs to "recompare" again before syncronise.

Is there any function could help to record and keep track of the "add" or "delete" of files of A, and it can syncronise from A to B QUICKLY without spending lots of time to "recompare" again and again, after my "daily" & "minor" update?

Is there any technology "photo shot" that can very quickly to "memorise" the whole structure and/or files of A, and then copy to B. When there's a failure of A, we can still get back all thing of A from B.
Back to top
googlymoogly



Joined: 07 Mar 2009
Posts: 4

PostPosted: Tue Mar 10, 2009 10:50 am    Post subject: Re: Speed up the comparison Reply with quote

stanleywong wrote:
Is there any function could help to record and keep track of the "add" or "delete" of files of A, and it can syncronise from A to B QUICKLY without spending lots of time to "recompare" again and again, after my "daily" & "minor" update?
If ViceVersa monitored the USN journal in the filesystem (this would only work with local NTFS volumes, not network drives (unless there was some minimal satellite application you could install on remote computers)), this could be done.

Check the program Everything (external links not allowed, but it's made by VoidTools) for an example of the performance you can get by bypassing the normal Windows filesystem functions and reading the USN journal directly.
Back to top
TGRMN Software
Site Admin


Joined: 10 Jan 2005
Posts: 8467

PostPosted: Tue Mar 10, 2009 1:12 pm    Post subject: Reply with quote

Hello

Thanks for the info. VVEngine and VVLauncher do monitor the file system for changes. They know that a change has happened to source/target but do not know "what" change. So a rescan is needed. The next VVEngine will know what has changed and that will improve performances a lot, as re-comparing will no longer be needed.
_________________
--
TGRMN Software Support
http://www.tgrmn.com
http://www.compareandmerge.com
Back to top
mikeyww



Joined: 23 Dec 2009
Posts: 15

PostPosted: Wed Dec 23, 2009 1:21 pm    Post subject: Comparison Reply with quote

SyncBackPro has an option for fast backup. This actually avoids rescanning the destination after the first run. I'm not sure why it needs to scan the destination on the first run. It would be useful to have such an option that simply ignores what is on the destination and copies the files anyway or else finds matches and copies only newer files.
Back to top
Display posts from previous:   
Post new topic   Reply to topic     Forum Index -> Wish List All times are GMT
Page 1 of 1

 
Jump to:  
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © phpBB Group
Copyright © TGRMN Software. TGRMN Software products: