Ah. The reason that scans of the Apache log files on my techblog's host are taking a really long time today is that one IP decided to hit my URLs 1,193,188 times today. So far.
Fortunately they used a generic user-agent that I am already having Apache redirect away from the actual techblog to a static page, so that didn't invoke my CGI ~596,594 times (which would have been many times more than typical volume).
Take a bow, 84.40.218.61 and python-requests/2.32.4. You are now off the island.