Probable memory leak in native memory with subscription data

[thmiceli]

When running the server and logging the amount of allocated physical memory by the process, the amount of javascript managed memory and CPU usage, I am seeing a steady increase in allocated physical memory while the javascript memory is stable. That seems to indicate a memory leak in native code which should be investigated. For the test I used the test-example/testSocketIO.js script with 10 clients. Note that in the graph there is a drop in CPU usage and a stabilization of memory usage, this corresponds to market close.

[thmiceli]

By the way, in the same kind of testing with request/response data, the process memory usage was stable.