Hello Igniters, As part of [1] cache metrics need to be updated as some of them like swap hits are not applicable anymore.
In memory management scheme based on MemoryPolicies it may be useful (and easier) to collect some metrics not for individual caches but for whole MemoryPolicies where several caches may reside. I suggest the following list of new metrics to collect for each MemoryPolicy: - free space / used space tracking; - allocation / eviction rate; - metrics to track memory fragmentation: e.g. % of pages with only 8 bytes free, 16 bytes free and so on; - % of big fragmented entries in cache: may be useful to adjust page size. Please suggest any other metrics that may be worth tracking. [1] https://issues.apache.org/jira/browse/IGNITE-3477 Thanks, Sergey Chugunov.
