It uses FUSE and there's three types of Kernel cache you could use with FUSE (although, it seems like gcsfuse is exposing only one):

1. Cache of file attributes in the Kernel (this is controlled by "stat-cache-ttl" value - https://github.com/GoogleCloudPlatform/gcsfuse/blob/7dc5c7ff...) 2. Cache of directory listings 3. Cache of file contents

It should be possible to use (2) and (3) for a better performance but might need changes to the underlying fuse library they use to expose those options.