MarkWorker goroutine recursively scan all the objects and colors them into white (inaccessible), gray (pending), black (accessible). But finally they will only be black and white objects.- In compile time, the compiler has already injected a snippet called write barrier to monitor all the modifications from any goroutines to heap memory.
- When “Stop the world” is performed, scheduler hibernates all threads and preempt all goroutines.
- Garbage collector will recycle all the inaccessible objects so heap or central can reuse.
- If the whole span of memory are unused, it can be freed to OS.
- Perform “Start the world” to wake cpu cores and threads, and resume the execution of goroutines.
VietMX Staff asked 3 years ago
