The publishing step takes forever.
We have a master node and a few build nodes. Only the nodes build anything.
Nodes are started by master through ssh.
Our doxygen generated documentation is 61 MB in size, and 3164 files.
And this amount of documentation takes 90 minutes to publish.

If I check what jenkins is doing in the 90 minutes nothing stands out, no cpu usage, no io wait nothing. Just extremely slow publish. I can see arriving the files roughly 1 file / second.

A remote scp copy from the node to the master takes 6 seconds, on the same directory.