Modern solid-state drives (SSDs) use new host-interface protocols, such as NVMe, to
provide applications with fast access to storage. These new protocols make use of a concept …

We propose DC-store, a storage framework that offers deterministic I/O performance for a
multi-container execution environment. DC-store's hardware-level design implements …

Although flash cells wear out, a typical SSD has enough cells and sufficiently sophisticated
firmware that its lifetime generally exceeds the expected lifetime of its host system. Even …

File fragmentation has been widely studied for several decades due to its detrimental effects
on I/O activities. However, most of the previous research focuses on its performance aspect …

Thanks to high-density flash memory and high parallelism, multi-tenant solid-state drives
(MSSD) have become a popular high-performance storage device for enhancing cache …

Recently, many cloud systems, including home cloud servers, adopt Docker as their
virtualization framework due to its lightweight architecture. Docker utilizes Cgroups to control …

The performance gap between compute and storage is fairly considerable. This results in a
mismatch between the application needs from storage and what storage can deliver. The full …

In current Linux systems, the BFQ scheduler has become the de-facto standard I/O
scheduler that supports Cgroup. However, it cannot guarantee I/O proportionality when …

Cloud systems often use blkio subsystem of Cgroups for controlling I/O resources to
guarantee the service-level objective (SLO) of the systems. However, the blkio subsystem of …

Even on modern SSDs, I/O scheduling is a first-order performance concern. However, it is
unclear how best to optimize I/O patterns for SSDs, because a complex layer of proprietary …