CPU contention occurs when multiple processes or threads attempt to use the CPU simultaneously, leading to competition for CPU resources. This can result in delays and decreased performance as the CPU switches between tasks. For example, if two high-priority processes are running concurrently, they may both demand CPU time, causing contention.
CPU ready queue, on the other hand, is a data structure used by the operating system to manage processes that are ready to execute but are waiting for the CPU to become available. Processes in the ready queue are scheduled based on their priority and other factors. For instance, when a process finishes its time slice or is preempted, it is placed back in the ready queue to await its next execution opportunity.
In the context of cloud computing, managing CPU contention and optimizing the ready queue can significantly impact performance. Cloud providers like Tencent Cloud offer services that help in resource allocation and management, ensuring efficient CPU utilization across virtual machines.