[ENG] Paolo Valente: “How fast is fast storage under Linux?“ / #LinuxPiter

How fast is fast storage under Linux? In many important situations, the Linux kernel must provide bandwidth and latency guarantees in the access to storage. Examples range from guaranteeing a high responsiveness in a system doing intense I/O, to supporting at least the minimum quality of service required by cloud storage or by WEB and video-streaming services. The common solution used in Linux to provide these service guarantees is I/O throttling, especially with modern, fast SSDs. But, as surprising as it