But to know whether you want that, you need to understand the application. Elasticsearch, for example, recommends using at most 50% of physical memory for heap:

But to know whether you want that, you need to understand the application. Elasticsearch, for example, recommends using at most 50% of physical memory for heap: https://www.elastic.co/guide/en/elasticsearch/reference/current/heap-size.html https://www.elastic.co/guide/en/elasticsearch/reference/curr... You also often want to stay below 32 gb to get compressed OOPs