Hi,

The libspdm submodule is 1.1GB of (compressed) data to clone, but only
18MB once checked out.

This is by some margin the majority of the time it takes to clone edk2
and submodules. (It takes me 5m44s, and I don't think it's my Internet
connection slowing it down.)

Having become curious as to how it managed to get that bad, I had a
dig. And found that nearly all of the data comes from a branch (that
is not a branch of the codebase at all) called github_pages.
If I run
  $ git branch -r -d github_pages
  $ git gc --prune=now
the size of my cloned directory shrinks from 1.1GB down to a more
reasonable 27MB.

Does anyone have any connections at DTMF that we can try to get in
touch with to discuss how to improve their repository setup?

/
    Leif