Forum Index  ViceVersa HOME         FAQ and Knowledge Base

 FAQForum FAQ   SearchSearch Forum  RegisterRegister 
 ProfileProfile   Log inLog in 

Can it go faster?

 
Post new topic   Reply to topic     Forum Index -> Support
Author Message
vvscottso



Joined: 07 Jul 2008
Posts: 2

PostPosted: Mon Jul 07, 2008 3:58 am    Post subject: Can it go faster? Reply with quote

Is there anything that can be done to improve the throughput?

Using crc I got the following using a folder where all of the files are between 5-7MB each:
-- Done: 756 (4.66GB) Err: 0 (0) Skipped: 0 (0) Tot: 756 (4.66GB) --
-- Average Transfer Rate: 18.94MB/Sec -- Elapsed Time: 4 min 12 sec

Without crc I got:
-- Done: 756 (4.66GB) Err: 0 (0) Skipped: 0 (0) Tot: 756 (4.66GB) --
-- Average Transfer Rate: 36.63MB/Sec -- Elapsed Time: 2 min 10 sec

Is this normal? Or can it be improved on? Windows takes 116 seconds to copy the same path.

XP Pro, gigabit net, Quad core 2.8ghz, 4GB ram.

I find I get better performance using 65K buffer with Flush Buffer checked.

Also, the backup slows down about a third of the way through. Why is this?
Back to top
TGRMN Software
Site Admin


Joined: 10 Jan 2005
Posts: 8763

PostPosted: Mon Jul 07, 2008 6:44 am    Post subject: Reply with quote

Hello

with CRC calculation the copy is slower, because VV needs to read the target file after copying to check the CRC value.

Quote:
Windows takes 116 seconds


This is very similar to the 2 min 10 sec ViceVersa takes.

Quote:
The backup slows down about a third of the way through. Why is this?


The spees depends a lot on file size. Small files get copied a lot slower. Is it possible that about a third of the way through ViceVersa starts copying a set of small files?

thanks
_________________
--
TGRMN Software Support
http://www.tgrmn.com
http://www.compareandmerge.com
Back to top
vvscottso



Joined: 07 Jul 2008
Posts: 2

PostPosted: Mon Jul 07, 2008 1:38 pm    Post subject: Reply with quote

Quote:
The speed depends a lot on file size. Small files get copied a lot slower. Is it possible that about a third of the way through ViceVersa starts copying a set of small files?


All of the files are in the range of 5 to 7 meg each. They are all image files of the same dimension.
Back to top
TGRMN Software
Site Admin


Joined: 10 Jan 2005
Posts: 8763

PostPosted: Tue Jul 08, 2008 2:39 am    Post subject: Reply with quote

Hello,

- When the speed goes down, is that from what value to what value?

- Does the speed go down also with the Flush Buffer option checked?

- And lastly , does the speed also go down when not copying over the network (i.e. a local disk copy)?

thanks!
_________________
--
TGRMN Software Support
http://www.tgrmn.com
http://www.compareandmerge.com
Back to top
Display posts from previous:   
Post new topic   Reply to topic     Forum Index -> Support 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: