Hi Martin, On 11/02/2017 04:02 PM, Martin Raiber wrote: > > snapshot cleanup is a little slow in my case (50TB volume). Would it > help to have multiple btrfs-cleaner threads? The block layer underneath > would have higher throughput with more simultaneous read/write requests. Just curious: * How many subvolumes/snapshots are you removing, and what's the complexity level (like, how many other subvolumes/snapshots reference the same data extents?) * Do you see a lot of cpu usage, or mainly a lot of disk I/O? If it's disk IO, is it mainly random read IO, or is it a lot of write traffic? * What mount options are you running with (from /proc/mounts)? -- Hans van Kranenburg -- 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
