Hi Colin, Unfortunately, you can't get the exact off-heap size.
There are several tickets here https://issues.apache.org/jira/browse/IGNITE-6814 https://issues.apache.org/jira/browse/IGNITE-5583 http://apache-ignite-users.70518.x6.nabble.com/Cache-size-in-Memory-td17226.html You are using (pages * pageSize * pagesFillFactor) correctly (if you have only one memory region). BTW, pagesFillFactor is calculated using FreeLists [1] buckets. FreeLists has a limited amount of buckets (for instance, approx 25% free, ~50% free, ~75% free). In this case (pages * pageSize * pagesFillFactor) will give you an approx value of memory usage (based on buckets) and you can see drops in the usage when a page is moved from one bucket to another. [1] https://apacheignite.readme.io/docs/memory-architecture#section-free-lists Thanks, Alexey -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
