> Too little information. Is IO happening at the same time? Is
> compression on? Deduplicated? Lots of subvolumes? SSD? What
> kind of workload and file size/distribution profile?
Only write IO during the load spikes. No compression, no deduplication.
12 volumes (including snapshots). Spinning disks. Medium workload;
file sizes are all over the map since this hold about 30 user home
directories.
Interestingly enough, the problems which had persisted for many weeks
went away when all snapshots were removed. btrfs-transaction spikes
disappeared. Memory usage went from 30G to under 2G.
-Matt
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