On Thu, 31 Aug 2017 12:43:19 +0200 Marco Lorenzo Crociani <marcoc@xxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hi, > this 37T filesystem took some times to mount. It has 47 > subvolumes/snapshots and is mounted with > noatime,compress=zlib,space_cache. Is it normal, due to its size? If you could implement SSD caching in front of your FS (such as lvmcache or bcache), that would work wonders for performance in general, and especially for mount times. I have seen amazing results with lvmcache (of just 32 GB) for a 14 TB FS. As for in general, with your FS size perhaps you should be using "space_cache=v2" for better performance, but I'm not sure if that will have any effect on mount time (aside from slowing down the first mount with that). -- With respect, Roman -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
