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所在平台: Udemy |
课程主页: https://www.udemy.com/course/operating-system-concepts-2/
课程评论：没有评论
这是一个关于操作系统概念的课程，重点讲解了多线程、线程同步（包括锁和信号量）以及并发。该课程旨在帮助学员掌握在竞争性考试、面试和OS课程考试中常见的与多线程和并发相关的问题。 课程内容涵盖： * **线程基础**: 为什么使用线程、进程的开销、线程与进程的区别、线程的优势。 * **Pthreads (POSIX Threads)**: 如何创建、传递参数、获取线程ID、比较线程ID、终止线程、等待线程结束、返回值、分离线程，以及线程中的全局变量。 * **并发与同步**: 并发概念、竞态条件（Race Conditions）、原子操作、同步的重要性、同步解决方案的正确性属性、互斥（Mutual Exclusion）、锁（Locks）的使用（包括Pthreads中的应用和避免死锁）、信号量（Semaphores）及其在避免忙等待中的应用。 * **多核交互与设计**: 多线程与多核的互动、多核编程的挑战、多线程程序设计、线程池（Thread Pools）。 * **经典同步问题**: 读者-写者问题（Readers-Writers Problem）及其解决方案、两类哲学家进餐问题（Dining Philosophers Problem）及其解决方案。 * **死锁（Deadlocks）**: 死锁的四个必要条件、死锁的预防、资源分配图（Resource Allocation Graph）、死锁的处理。 * **线程与锁的实现**: 线程的实现（用户线程与内核线程）、Linux中的线程实现、锁的实现、TestAndSet原子指令、自旋锁（Spinlocks）、锁对性能的影响。 课程强调了多线程相比单线程的优势，能够充分利用多核硬件并行性，并深入解释了数据竞争、进程同步、原子操作等概念，以及如何编写无数据竞争的正确多线程程序。 课程由Udemy提供，并有30天退款保证和奖学金机会。
Ace multithreading, Pthreads, synchronization, locks, semaphores, concurrency, deadlocks questions in competitive exams, job interviews, and OS course exams.Do you know: A single-threaded process can only execute on one core even if the machine has eight cores? A multithreaded process can exploit the true hardware parallelism! What are data races? What is process synchronization? What are atomic operations? How to implement correct multithreaded programs without data races? What are locks and semaphores? How do we use locks and semaphores to implement correct synchronization solutions? What are deadlocks? What are the necessary conditions for deadlocks? How do operating systems deal with deadlocks? How do operating systems implement threads? How do operating systems implement locks to ensure correct mutual exclusion and synchronization? Learn the explanations to these and many more intriguing questions in this course!Specifically, the course will cover the following in detail.Why use threads in programs?What are the overheads of using processes?What is the key idea behind threads?Difference between single vs multithreaded processes.Benefits of using threads.Pthread basics.How to create a thread using Pthread?How to pass parameters to a thread?How to use Pthread_self, Pthread_equal?How to terminate a thread?How to use Pthread_join to wait for a thread to terminate?How to return values from thread functions?How to wait for threads?How to detach a thread using Pthread_detach?What are global variables in threads?What is concurrency in programs?What are race conditions and atomic operations?What is synchronization?What are the correctness properties for synchronization solutions?How to enforce mutual exclusion?What are locks?How to use locks in Pthreads?How to avoid deadlock with locks?What are semaphores?What are synchronization patterns-bounded concurrent access, signaling?How to employ semaphores to avoid busy waiting?How multithreading interacts with multicores?What are the challenges of multicore programming?How to designing multithreaded programs?What are thread pools?What is the readers-writers problem?How to solve the readers-writers problem?What is the dining philosophers problem?How to solve the dining philosophers problem?What are the 4 necessary conditions for deadlocks?How to prevent deadlocks?What is resource allocation graph?How to handle deadlocks?How to implement threads?What are user threads and kernel threads?How are threads implemented in Linux?How are locks implemented?What is the TestAndSet atomic instruction?What are spin locks?How do locks influence performance?30 day money back guaranteed by Udemy.Wisdom scholarships. If you are interested in taking one of our courses but cannot purchase it, you can apply for a scholarship to enroll. Learn more about the application process at my website.
