moving a torrent blocks other operations

[lvm]

1.3.6. When a torrent storage is moved to a different filesystem it make take a while, and it blocks everything else - download and upload stop completely for all torrents until this torrent is moved. Haven't we heard of multithreading?

[Cas]

That is the way libtorrent works:

This will block all other disk IO, and other torrents download and upload rates may drop while copying the file.

[lvm]

I suppose queueing is controlled by libtorrent too? - when "don't count slow torrents" option is on and deluge stops all downloads because of this "feature" it doesn't analyze the reason for the stoppage and adds more and more torrents to the download pool until the torrent is finally moved and they all start downloading.