A Dedicated Cache for Metadata

Explore the concept of a dedicated configurable generic metadata cache in this 35-minute conference talk from the Linux Plumbers Conference. Delve into how streaming IO can evict metadata from the page cache and examine the challenges faced by distributed file systems like FhGFS, Lustre, and Cephfs when dealing with object disk layouts on underlying file systems such as ext4, xfs, and btrfs. Learn about potential solutions to metadata cache issues and their implications for file system performance and efficiency.