A Lock-Free Multiprocessor OS Kernel

@inproceedings{Massalin1992ALM,
  title={A Lock-Free Multiprocessor OS Kernel},
  author={Henry Massalin and Calton Pu},
  booktitle={OPSR},
  year={1992}
}
Typical shared-memory multiprocessor OS kernels use interlocking, implemented as spin-locks or waiting semaphores. We have implemented a complete multiprocessor OS kernel, including threads, virtual memory, and I/O (including a window system and a file system), using only lockfree synchronization methods based on Compare-and-Swap. Lock-free synchronization avoids many serious problems caused by locks: considerable overhead, concurrency bottlenecks, deadlocks, and priority inversion in real-time… CONTINUE READING
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