| S. Inohara, K. Kato, and T. Masuda. `Unstable Threads' kernel interface for minimizing the overhead of thread switching. In Proceedings of the 7th IEEE International Parallel Processing Symposium, pages 149--155, April 1993. |
....and the O S multiplexes these virtual machines over hardware. Providing this abstraction entails a high overhead in terms of context switch time and memory footprint, thereby limiting concurrency. A number of studies have shown the scalability limitations of thread based concurrency models [6, 11, 21, 32], even in the context of so called lightweight threads. I O Scalability limitations: The I O interfaces exported by existing OSs are generally designed to provide maximum transparency to applications, often at the cost of scalability and predictability. Most I O interfaces employ blocking ....
S. Inohara, K. Kato, and T. Masuda. `Unstable Threads' kernel interface for minimizing the overhead of thread switching. In Proceedings of the 7th IEEE International Parallel Processing Symposium, pages 149--155, April 1993.
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