[zeromq-dev] Windows throughput perfomance. Once again.

Martin Sustrik sustrik at 250bpm.com
Tue Jun 28 23:47:14 CEST 2011

On 06/28/2011 11:37 PM, Steven McCoy wrote:

> 0mq uses 8KB message blocks which means XP would be affected (8KB
> default) but Vista and 7 are not (64KB default).

The MSDN article states:

This problem occurs if all the following conditions are true:

     * The Windows Sockets program uses non-blocking sockets.
     * A single send call or WSASend call fills the whole underlying 
socket send buffer.

So, the problem would occur only if the default socket buffer would be 
less than 8kB. Is that the case?


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