Benchmarks for the Event Manager?

Are there any easy-to-build benchmarks for the GHC event manager? There's some stuff in https://github.com/tibbe/event, but that repo hasn't been touched in 9 years, and it looks like the benchmarks in it were not pulled into GHC itself. I've found some stuff for benchmarking the event manager against stdio (an alternative event manager than builds on top of libuv), but I wanted to check and see if there are any other benchmark suites out there. -- -Andrew Thaddeus Martin