According to documentation
Percentage of total RAM used by processes. RAM used by system caches and buffers isn't included in this metric. Dynatrace calculates memory usage as:
memory_used = total_memory_size - (free_memory + active_memory + inactive_memory + reclaimamble_memory)
What does dynatrace consider reclaimable memory?
We are having and instance where the cached memory is considered as memory used where as the actuall process memory is 20%.
Any ideas on correcting / setting changes
Solved! Go to Solution.
The rise does not surprise me, as the OS will typically use available RAM to cache mainly disk access. What does surprise me are the sudden drops, as there seems to have been no restarts. We would probably need a little bit more context though to understand it, namely the OS 😉
It was linux RHEL 7.x, but since that it was upgraded to 8.x. Unfortunately the client dt system will not accessible anymore, so I will not be able the check the memory consumption of the host... 😞