OOM issue

[joepio]

I still have an OOM issue, even after fixing #529. I'm running in production on low-end hardware (1VCPU, 512 MB ram), but it should have some ram to spare. I'd like to know what's causing this.

I tried running with miri, but it doesn't support Tokio at the moment. I could also try valgrind.

Since sleds default cache size is 1gb, maybe that's the problem? Because my server doesn't even have that amount of memory. I'll try using a somewhat decent machine.

Update: after a week of using a machine with 4GB ram, I haven't had any OOMs. The memory usage seems to hang at 448MB total, of which 370 is used by Atomic-Server. I don't think there's a memory leak.