Problem Solving - It's a Trap! arches.io
I love being a developer but the job doesn't come without its risks.
Memory used above quota will swap out to disk, which substantially degrades dyno performance.
If the memory size of your dyno keeps growing until it reaches five times its quota (for a 1X dyno, 512MB x 5 = 2.5GB), the dyno manager will restart your dyno with an R15 error.