freeze during small job, high disk activity

[mark1990]

When FFS starts doing a job it will sit like this for almost 10 minutes:

http://oi46.tinypic.com/214blgw.jpg
(sorry about the language)

In the disk activity screen you see disk C:\ and D:\. The first one is my main
disk (SSD) which only contains programs, D is a large data disk of which some
folders are being synchronized with an external network drive that has label
Z.

So after 9 minutes it will popup an error message that there is no Recycle bin
available for disk Z and that files will have to be deleted permanently. Then,
it starts processing the changes which it completes in like 10 seconds and the
job finishes normally.

This has been happening for a while and it worries me somehow... It just
started one day and it hasn't been different ever since. I recently updated
from 5.5 to 5.7 but to no avail. Any idea what is happening here?


Thanks in advance.

[Zenju]

If I had to guess I would say it is checking the recycle bin existence and for
one of the drives in question, the recycle bin is so full that it takes this
long time until it is fully traversed. Unfortunately under Windows checking
for recycler existence can only be done indirectly and requires a full
statistics retrieval (for no inherent reason other than that the Win32 API is
lacking).
You can test this by using a different deletion handling. At least for the
folder pair containing "z" this makes sense in any case: since it doesn't
support recycler there is no reason to have FreeFileSync do this check each
time, but better be explicit and set it to "permanently" or "versioning".

If the hang is for another reason, you can also find out what's going on with
a Process Monitor log: https://technet.microsoft.com/de-de/sysinternals/bb896645.aspx

[mark1990]

Uff, you were right about the recycle bin. It contained a batch of over
100.000 files of which I thought I deleted them permanently with
Shift+Delete..

Thanks for your help. And for the great program :-)