Developers need help with multithreaded programming. We investigate how two program
analysis tools are used by developers at Google: ThreadSafety, an annotation-based
static data race analysis, and TSan, a dynamic data race detector. The data was
collected by interviewing seven veteran industry developers at Google, and provides
unique insight into how four different teams use tooling in different ways to help
with multithreaded programming. The result is a collection of perceived pros and
cons of using ThreadSafety and TSan, as well as general issues with multithreading.