When rclone mount is run using S3 as the backend, I want to start automatically loading data to the local VFS cache so files open faster without needing to be downloaded.
Is this possible already? A caveat is that if I try to open a file on the mount that has not already been pre-loaded in the cache, rclone should start loading this file instead of pre-loading other files.
Not sure how you are mounting your S3 backend, Assuming Linux, you can create a script to run after it's mounted and to cat the file and send it over to /dev/null so it will be cached if you have enough cache size. If your cache size and life is long enough, file should remain there for a long time as well as survive a remount.
Thanks for your replies. I thought of using --vfs-read-ahead and setting it to the approximate size of my backend store (100GB). My worry is that if I do that and load a file, it will load the next sequential 100GB, even if a file at the other end of the store is opened, meaning I'll have to wait for all 100GB to be loaded before I can open the file. Is that accurate?