How memory usage is calculated in the kubectl top pod command
The output of the
kubectl top pod command is not equal to the memory usage of the container_memory_usage_bytes metric in Container Service, but the memory usage of the container_memory_working_set_bytes metric. Calculation methods:- container_memory_usage_bytes = container_memory_rss + container_memory_cache + kernel memory
- container_memory_working_set_bytes = container_memory_usage_bytes - total_inactive_file (unactivated anonymous cached pages)
- container_memory_working_set_bytes is the actual amount of memory used by the container and is also the basis for restart judgment when a resource limit is configured.