I have been searching for a long time with the key word, “lxd limit disk IO”. The information that I found in the project is the link, https://github.com/lxc/lxd/blob/master/doc/storage.md#io-limits
I/O limits
I/O limits in IOp/s or MB/s can be set on storage devices when attached to a container (see Containers).
Those are applied through the Linux blkio cgroup controller which makes it possible
to restrict I/O at the disk level (but nothing finer grained than that).
Because those apply to a whole physical disk rather than a partition or path, the following restrictions apply:
- Limits will not apply to filesystems that are backed by virtual devices (e.g. device mapper).
- If a filesystem is backed by multiple block devices, each device will get the same limit.
- If the container is passed two disk devices that are each backed by the same disk,
the limits of the two devices will be averaged.
It’s also worth noting that all I/O limits only apply to actual block device access,
so you will need to consider the filesystem’s own overhead when setting limits.
This also means that access to cached data will not be affected by the limit.
But I still have no idea to limit disk IO.
I am looking forward for you reply, thank you.