Memory Model
Understand how Java's memory model governs the visibility of shared variables in multithreaded environments. Explore the role of cache coherence, compiler and runtime optimizations, and within-thread as-if-serial semantics. This lesson helps you reason about concurrent program behaviors and potential outcomes to avoid synchronization issues.
We'll cover the following...
Introduction
The laws of Physics put a cap on how fast processors can be. Increasing the clock rates for processors has become harder and harder over the years. Consequently, parallelism, concurrency, and code optimizations are the other avenues that have been explored to make programs run more efficiently and faster. In this context optimizations by the runtime or the compiler can lead to concurrency bugs if the developer fails to use synchronization constructs to signal the platform that access to data is shared. The memory model in ...