There have been a few bugs recently (SERVER-117639, SERVER-105873) that are easier to catch if queries yield more often. The relevant knobs are `internalQueryExecYieldIterations` and `internalQueryExecYieldPeriodMS`.

It might be beneficial to create core and agg passthroughs where queries yield more, so we have a higher probability of running into save/restore and concurrency bugs in our jstests. We can also add other passthroughs with these extra configurations

cc james.harrison@mongodb.com This was James' idea!