Mega (mega.nz) is a very interesting cloud (50 gb free).
But it's slow also with webdav protocol, and is slow also 4shared. So I think the problem not is davfs, but the clouds.

• is slow the same as extreme slowness?
• never heard of "Mega". Some more information?

"is slow also the command line (rsync)": rsync is a very powerful tool with a lot of options and one call to rsync may result in hundreds of file system calls. So this is no good choice for testing. What I have in mind are tools like echo, cat, cp and ls.

To test what is slow and for what reason I want you to do this test:

• prepare some file of about 10 MB; content does not matter
• set option "debug most" in your davfs2.conf file
• make sure that no graphical file manager is running
• mount the davfs2 file system
• run command "echo test > /media/[user]/webdav-schede/test1"
• wait about 15 seconds
• run command "cp [your 10 MB file] /media/[user]/webdav-schede/test2"
• wait another 15 seconds
• unmount the file system
• do not do any other file system operations on your davfs2 file system (no "simple view")
• search your log files for messages from mount.davfs. There should be lots of them. Copy them into some textfile and attach it to this item.

These log message will probably show whether all commands ar done properly and how long they take. It might even show some file systems operations that you are not aware of, because they run in the background.

Werner

Please don't call a davfs2 file system a partition. It isn't.

extreme slowness:

• Is it only extreme slow with posixovl or is the davfs2 file system without any overlay extreme slow?

• What operations are slow? Read, write, directory listing, only opening many files, only opening big files?

• What brand of server do you connect to?

• Do you use any graphical file manager? If you close that graphical file manager and only use command line tools does that affect the speed?

I can't see any problems with the fstab entry.

Werner

• yes I can copy a hidden file (.file)
• Incredible: today I am able to create a symlink!

I'll do a bit more testing, thank you

I mean that
 1.symlinks are very useful
 2. in local posixovl can create symlinks even in fat32, ntfs file systems
 3. in remote (mounted via davfs) posixovl cannot create symlinks 

I wondered if the fault was posixovl or, as I believe, of davfs, which does not let posixovl create the small hidden files that are then seen as symlinks.
That's all.
It would be nice if davfs allowed posixovl to create symlinks (actually small hidden files then seen as symlinks).
Unless you say the problem is in the cloud, whose filesystem does not allow symlinks. So why in local posixovl can create (apparent) symlinks on non-unix partitions?
Thank you

Installed davfs2 on Kubuntu 18.04: mounted a webdav (Mega) in /media/user/webdav successfully;
used <b>posixovl</b>: with local partitions all OK, with that webdav partition no symlinks (and no some files): permission problem ("check permissions" message).
What is wrong?