Make the concurrency harness run on Windows (portability) + document the RR-side caveat#1

mithileshgau wants to merge 2 commits into

rocketride-org:mainrocketride-org/rocketride-benchmark:mainfrom

mithileshgau:fix/windows-portabilitymithileshgau/rocketride-benchmark:fix/windows-portabilityCopy head branch name to clipboard