Concurrency is a core principle of modern software application development that allows applications to execute many tasks at the same time. Computing paradigms continue to evolve, making use of preemptive multi-core and distributed architectures, thus concurrency becomes paramount for achieving the best performance and responsiveness. Whether processing huge amounts of data or ensuring smooth user experiences in web applications, concurrency enables resource efficiency and improved performance.
That said, writing concurrent programs can have its challenges. Problems such as race conditions, deadlocks, and data corruption are common weaknesses of classical concurrent programming patterns that lead to unpredictable and hard-to-debug behavior. Most programming languages use manual memory management or garbage collection, both of which can add overhead and unnecessary inefficiencies when dealing with concurrency. Rust addresses these issues using an ownership model and an expressive type system to implement a unique and safe concurrency mechanism.