In this article, researchers J. Park, M. Kim, M. Chun, L. Orosa, J. Kim, and O. Mutlu explore ways to minimize the latency of solid-state drives (SSDs) when retrieving data. SSDs are widely used in modern computing systems due to their faster performance compared to traditional hard disk drives (HDDs). However, SSDs can experience delays when retrieving data, especially when multiple read operations are concurrently performed.
The researchers propose several techniques to reduce the latency of SSD read operations, including optimizing the read-retry process. They explain that during a read operation, if the SSD encounters difficulties in accessing the requested data, it will retry the read operation multiple times before giving up and returning an error. By optimizing these read-retry processes, the SSD can reduce the overall latency of data retrieval.
The researchers propose two main techniques to optimize read-retry: 1) dynamic retry management and 2) adaptive read-retry control. Dynamic retry management involves dynamically adjusting the number of read retries based on the read operation’s priority level, while adaptive read-retry control involves adaptively adjusting the read-retry parameters based on the SSD’s workload and temperature.
The researchers evaluate their proposed techniques using various benchmarks and compare them to existing methods. They find that their optimized read-retry techniques can significantly reduce the latency of SSD read operations, improving overall system performance.
In conclusion, this article demonstrates how optimizing the read-retry process in SSDs can minimize the latency of data retrieval. By dynamically adjusting the number of read retries based on priority level and adaptively adjusting parameters based on workload and temperature, SSDs can improve their performance and provide faster response times for users.
Computer Science, Hardware Architecture