On Mon, May 16, 2011 at 2:40 PM, Andrew Hume <[email protected]>wrote:
> i can increase the number of processes in various parts of the processing > graph, > but how can i effectively figure out what to increase? ordinarily, i would > look at > which processes have increasing input queue lengths. but 0mq doesn't do > that. > all i can measure is the memory footprint which starts increasing, > sometimes > alarmingly quickly, but mostly steadily. i can't tell if the memory usage > is from > fragmentation, or an input queue, or output queue. > There was quite a discussion about this sort of monitoring at the unconf, so there may be some more library level functionality coming that helps. That said, have you tried lowering the HWM to a minimum value, and collecting statistics on how often that is hit? If you're experiencing congestion at a certain point, the queue size should grow beyond the minimums fairly quickly I would guess. Ian
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