We have problems with slow startup of Global Build Stats Plugin. We have an installation with ~1000 jobs and around 50 builds kept per job. Big, but nothing extreme.
Could this be due to some corrupted stats file that makes it read all builds of every job, or is it ALWAYS doing that at startup?
I've seen some bad interactions between plugins, e.g. template-project and jobConfigHistory. Where combined they cause ridiculous amount of work.