Please add the option to set how many simultaneous threads to use

[iycgtptyarvg]

I have a comprehensive backup structure which results in the Compare to start with 15 threads. But, because they are all on 2 drives the compare takes a REALLY long time (disk thrashing). My system becomes unusable when that happens. In fact, the comparison takes much longer than the actual backup.

So, please add an option to be able to set the amount of threads (I want to set it to 1 to avoid the harddisk going crazy and slowing everything down).

[Zenju]

Folder traversal is inherently random access so there shouldn't be any slowdown due to oversubscription (Which I've confirmed in tests with FFS).

[iycgtptyarvg]

Really? That is quite surprising. I hear the harddisk thrashing a lot. When there are only a few threads (2 or 3) are left then the file count seems to go much faster.

Thanks for your response Zenju.