Send/Receive Buffer Size always 0 and HWM issue about clrzmq4

[metadings]

I'm going to rebuild the metadings/zguide/psenvpub and metadings/zguide/psenvsub examples, to see how much was int published and int subscribed.

The ZSocket.SendBufferSize and ZSocket.ReceiveBufferSize are properties of the socket, and I don't expect them to change.

Have a look into the docs on zmq_getsockopt:

ZMQ_RCVBUF: Retrieve kernel receive buffer size

The ZMQ_RCVBUF option shall retrieve the underlying kernel receive buffer size 
for the specified socket. A value of zero means that the OS default is in effect.
For details refer to your operating system documentation for the SO_RCVBUF socket option.

Option value type   int
Option value unit   bytes
Default value   0
Applicable socket types     all

[graham83]

Thank you - and i understand - ReceiveBufferSize / SendBufferSize is not going to give me any confirmation of the send/receive HWM.

EDITED: Performance Profiler showed obvious mistake in previous test code posted, reporting slow pub / sub - Console Write Line was the delay. Now getting > 200 000 msgs/sec now. Live and learn.

[metadings]

Wow :)

You previous test code isn't live anymore... However you may "unlock" the Main thread using

while (true) Thread.Sleep(1000);