Resource contention
In today's world, Resource contention has become a topic of constant interest and debate. With the advancement of technology and social networks, Resource contention has taken on a relevant role in our society. Whether Resource contention is a person, a historical event, a natural phenomenon, or a scientific discovery, his impact has been felt in all areas of life. In this article, we will further explore the importance of Resource contention and analyze how it has shaped our world in different ways. In addition, we will examine the different perspectives and opinions that exist around Resource contention, and we will analyze its influence on our present and future. Read on to discover more about this exciting topic!
In computer science, resource contention is a conflict over access to a shared resource such as random access memory, disk storage, cache memory, internal buses or external network devices. A resource experiencing ongoing contention can be described as oversubscribed.
Resolving resource contention problems is one of the basic functions of operating systems. Various low-level mechanisms can be used to aid this, including locks, semaphores, mutexes and queues. The other techniques that can be applied by the operating systems include intelligent scheduling, application mapping decision, and page coloring.
Access to resources is also sometimes regulated by queuing; in the case of computing time on a CPU the controlling algorithm of the task queue is called a scheduler.
Failure to properly resolve resource contention problems may result in a number of problems, including deadlock, livelock, and thrashing.
Resource contention results when multiple processes attempt to use the same shared resource. Access to memory areas is often controlled by semaphores, which allows a pathological situation called a deadlock, when different threads or processes try to allocate resources already allocated by each other. A deadlock usually leads to a program becoming partially or completely unresponsive.
In recent years, research on the contention is more focused on the resources in the memory hierarchy, e.g., last-level caches, front-side bus, memory socket connection.[citation needed]
See also
References
- ^ Knauerhase, Rob (2008). "Using OS Observations to Improve Performance in Multicore Systems". IEEE Micro. 28 (3): 54–66. doi:10.1109/mm.2008.48. S2CID 9202433.
- ^ Zhang, Xiao (2009). "Towards practical page coloring-based multicore cache management". Proceedings of the 4th ACM European conference on Computer systems. pp. 89–102. doi:10.1145/1519065.1519076. ISBN 9781605584829. S2CID 5769992.
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