It would expect it to be per instance. Instances are independent of each other. Further one can only run 2 instances max / ip.

On Fri, 22 Dec 2017 at 20:40 Igor Mitrofanov <igor.n.mitrofanov@gmail.com> wrote:
Hi,

Is MaxMemInQueues parameter per-host (global) or per-instance?
Say, there are 10 relays on the same 24 GB host. Should I set
MaxMemInQueues to 20 GB, or 2 GB in each torrc?

Thanks,
Igor
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