On Thu, Jul 09, 2020 at 03:20:14PM +0200, Stefan K wrote: > Hi and thanks! > > > LRU, same as bcache. > do you plan to change this , since LRU is not very efficient (in comparison to > other), maybe 2Q or ARC[1-4] No, but I'd be happy to help if someone else wanted to implement a new caching algorithm :) In real world mixed workloads LRU is fine, it's not that much of a difference vs. the more sophisticated algorithms. More important is the stuff like sequential_bypass or some other kind of knob to ensure your backup process doesn't blow away the entire cache. > > > [...] > > And you can pin specific files/folders to a device, by setting foreground target > > to that device and setting background target and promote target to nothing. > ok thank you very much! That must be documented somewhere ;-) I just write code, not documentation :)