On 23/02/2018 15:28, Peter Levart wrote:
Hi Adam,

Did you know that native memory is already tracked on the Java side for
direct ByteBuffers? See class java.nio.Bits. Could you make use of it?

Right, these are the fields that are exposed at runtime via BufferPoolMXBean. A SA based tool could read from a core file. I can't tell if this is enough for Adam, it may be that the his tool reveals more details on the buffers in the pools.


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