On 09/26/2011 09:42 AM, Thomas wrote: > "For large 0mq usage, > you may need to set system tunables > net.core.rmem_max and > net.core.wmem_max > to something larger, such as 16777216. IIRC the problem that elicited the need for this tuning was already fixed in all recent releases. Which version of 0MQ are you using? Martin