[zeromq-dev] Problem with durapub2 example

Ian Barber ian.barber at gmail.com
Wed Jul 27 10:59:13 CEST 2011

On Wed, Jul 27, 2011 at 5:26 AM, Tonis Xie <tonis.xie at gmail.com> wrote:

> >Also note that you'll almost certainly push more than HWM messages, as
> some will sit in TCP buffers. Being that the messages are >only 20 bytes,
> that could be quite a few.
> If this could happen, how can we get the same effect as the durapub2
> example that is described in zguide?
> -tonis

HWM is not designed to be a precise limit - it's designed to stop the stack
from running out of memory. If you are seeing the publisher overflowing
available memory, or never hitting a limit at all, then I would be
concerned, but in general HWM is not for precise flow control or

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