Hi Miklos, >From my test, a fuse write req can only contain 128KB which seems limited by FUSE_DEFAULT_MAX_PAGES_PER_REQ in kernel. I wonder if I could enlarge this macro to get more bandwidth, or some other adaption should be done? Up to now, many userspace filesystem is designed for big data which needs big bandwidth, such as 2MB or more. So could we add a feature to let the user config the max pages per request? Looking forward for your reply. Thanks, Jun