Synchronize directories - memory leak when deleting files

[mario13]

Win7 x64 Ultimate

Dialog Synchronize directories:
When deleting thousands of files from SATA disk, TC occupy in few seconds whole free memory (in my case abou 2 GB). After this, deleting files speed slow down to one file per 1-3 minutes.
First about 300 files are deleted fast.

[MVV]

Does memory become free after finishing operation? If yes, it is not a memory leak.
BTW are you sure it is TOTALCMD.exe process that occupies 2 GB of memory? Maybe it is just file system cache?

[Hacker]

wincmd.ini
[Configuration]
VistaDelete=1

HTH
Roman

[ghisler(Author)]

This is indeed a known bug of Windows Vista/7 - it seems that Windows creates a new thread for each file it is told to delete (via function SHFileOperation). Therefore please use the new delete function suggested by "Hacker".

[benjamin]

Hi,

I stumbled over this thread, because I'm having the same issue.
System is Core i7 with 4GB RAM and Win7 x64.

When I synchronize folders with an external esata drive and have to delete a few hundred or more of them TC deletes the first files really fast until about 1GB of RAM is used by the TC process. After that nothing happens. No more files are deleted or it's really slow. Only solution is killing the process through task manager.

I tried to resolve the problem with the VistaDelete=1 option and the Delete through Win Explorer option. Still the problem persists. I'm using TC 7.56a.

I've made a few screenshots. The count of threads occupied by TC is remarkable. If you need anything else just ask.

Edit: I can post the screenshots tomorrow evening because of the spam protection...

Edit2:
If some files have been deleted (about 500 in my example) the CPU load and memory consumption won't reduce after all files in the sync have been deleted. Leaving the sync dialog doesn't have any effect on resource usage too. Only closing TC, before it freezes completely, frees the resources.

Best Regards
Benjamin

[ghisler(Author)]

Try deleting with Shift pressed when opening the actual sync copy dialog. Then TC will bypass the recycle bin and delete directly.

VistaDelete=1 still deletes all files separately, because there is a bug in that function: When passing files from multiple directories to it, Windows deletes actually more than just these files...

[benjamin]

Thanks for your quick reply.

I removed the VistaDelete=1 option and the Delete through Win Explorer option and tested with about 7000 small files.

Holding Shift while opening the sync copy and delete dialogs works. The error can be reproduced every time when Shift is not pressed.

Btw. I couldn't post the screenshot links now even though I registered on Saturday. The screenshots are not needed anymore. Just posted it for your information.

Best Regards
Benjamin

[ghisler(Author)]

Unfortunately there is no other solution, the faulty delete to recycle bin functions on Vista/7 just don't work with that scenario (there is no function in Explorer equivalent to what sync delete does).