The debug package within the runtime gives us many functions and types that are available for debugging.  We have the ability to do the following:

• Force a garbage collection using FreeOSMemory().
• Print the stack trace that was generated at runtime. Stack to stderr using PrintStack().
• Read our garbage collection stats using ReadGCStats().
• Set our garbage collection percentage using SetGCPercent().
• Set our max stack size for a single goroutine using SetMaxStack().
• Set our maximum number of OS threads using SetMaxThreads().
• Control the runtime behavior while faulting on an unexpected address using SetPanicOndefault().
• Set the amount of traceback using SetTraceback().
• Return the stack trace of a goroutine using Stack().
• Write a heap dump using WriteHeapDump().