topic Betreff: List::push using significant more time than List:pull in FlexSim Forum

List::push using significant more time than List:pull

_aj — Wed, 04 Jun 2025 15:47:32 GMT

Any ideas why List:push is using significantly more time than List:pull?

The list is for all my available processors. They get pushed to list when the FlowItem exits the processor. They get pulled from the list when a FlowItem's next step is at that processor.

Betreff: List::push using significant more time than List:pull

moehlmann_fe — Thu, 05 Jun 2025 07:10:12 GMT

My guess is that there are a large number of pending backorders on the list that get sorted by a queue strategy. This sorting operation to determine the order in which the requests get to pull the pushed value is counted as part of the push in the performance profiler.

If that is the case, one thing you can try to improve the speed is to partition the list. If only the requests for a specific partition/processor need to be sorted than that should speed the push.

Re: List::push using significant more time than List:pull

_aj — Thu, 05 Jun 2025 12:44:39 GMT

Thanks, your guess is spot on.