Hey there! We've found the following might help you get unblocked faster:

• 🧵 Unusual Memory Usage Metrics for Small MySQL Database

• 📚 Railway vs. Fly

• 📚 Railway vs. Vercel

If you find the answer from one of these, please let us know by solving the thread!

Railway measures memory usage for billing purposes based on actual resource consumption, not virtual memory allocation.

I don't get where the 30GB ram usagei s coming from any idea?

Via pmap I see
total kB 54604244 2867736 2512276

metrics tab reports 18GB am I missing something?

Hi!

pmap is measuring virtual memory, which isn't the tool we use to view the running container's cgroup's current memory usage. Notably it will not include the page cache or your kernel's memory (which especially in databases, can get quite large).

Instead we're measuring the actual allocated running memory. Currently we're doing that via the cgroup's /sys/fs/ measurements. I did double check these on your running container, and found that they are accurate.