MongoDB with "tcmallocReleaseRate": 3, Tracking Operations in Logs

How is MongoDB expected to behave with the settings "tcmallocReleaseRate": 3 and tcmallocAggressiveMemoryDecommit: 0? How can we track these operations in the MongoDB logs?

We recently enabled "tcmallocReleaseRate": 3 and noticed sudden spikes and server hangs, leading to database crashes. Unfortunately, the logs do not provide much information as they were rolled over after a reboot.

I would like to confirm whether this change could have contributed to the memory spikes and impacted the database performance.

Additionally, I want to understand how we can track these operations in the MongoDB logs to determine when memory was released and when TCMalloc was triggered.