Choosing between tcmalloc AggressiveMemory Decommit vs tcmalloc ReleaseRate

Hello, we are having OOM killer issues on our servers even after doubling EC2 instance cpu and memory size. To overcome the issue we want to try setting tcmallocAggressiveMemoryDecommit or tcmallocReleaseRate . They both seem to do similar things in terms of memory release, but tcmallocReleaseRate seems to be better documented. Any recommendations on which one to use?