How to reduce pickaxe times for a particular repo?

From: Pavel Rappo <pavel.rappo@gmail.com>
Date: Jun 28, 2022, 10:50 UTC
Message-ID: <CAChcVumN66OxOjag9gPqgLq7gQrgdaEkZAJabusE-gGC7LLVyw@mail.gmail.com>

I have a repo of the following characteristics:

  * 1 branch
  * 100,000 commits
  * 1TB in size
  * The tip of the branch has 55,000 files
  * No new commits are expected: the repo is abandoned and kept for
archaeological purposes.

Typically, a `git log -S/-G` lookup takes around a minute to complete. I would like to significantly reduce that time. How can I do that? I can spend up to 10x more disk space, if required. The machine has 10 cores and 32GB of RAM.

Thanks, -Pavel