Performance-intensive applications have led both interface and architecture changes of high-end, growing-scale solid-state drives (SSDs). However, we observe that most of the time, the actual drive performance could not be easily scaled or boosted up with the increasing of internal resources of growing-scale SSDs due to the potential congestion of I/O requests. Such observation inspires this article to look for a request flow coordination design to appropriately control and throttle the I/O request over the increasingly-complicated SSD internal organization with manageable coordination overhead. The main objective is to avoid overloading or congesting any sub-module of growing-scale SSDs by making good use of the abundant internal resources, so as to effectively improve the drive performance in terms of the request-response time. The capability of the proposed design was evaluated with realistic and intensive I/O workloads, and the results are very encouraging.

中文翻译：

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为不断扩大的固态驱动器请求流程协调

性能密集型应用引领了高端、规模不断扩大的固态硬盘 (SSD) 的接口和架构变化。然而，我们观察到，在大多数情况下，由于 I/O 请求的潜在拥塞，实际驱动器性能无法随着规模不断扩大的 SSD 内部资源的增加而轻松扩展或提升。这种观察启发了本文寻找一种请求流协调设计，以通过可管理的协调开销来适当地控制和节流日益复杂的 SSD 内部组织上的 I/O 请求。其主要目标是通过充分利用内部丰富的资源，避免大规模SSD的任何子模块过载或拥塞，从而在请求响应时间方面有效提高驱动器性能。