Access Control Lists

Access control lists (ACLs) are lists of permissions that specify who can access a resource and what operations they can perform on it.

ACLs are often used in storage systems to control access to files and directories.

If ACLs are stored on disk but checked in software, this can impact performance. For higher duty cycles, the results of the check can be cached.

ACLs can be cached by storing the results of the check in memory. This can improve performance by avoiding the need to check the ACL on every access.