# Project-in/out scaling & latency

**URL:** <https://discourse.nodered.org/t/project-in-out-scaling-latency/93532>\
**Category:** FlowFuse\
**Tags:** nr-project-nodes\
**Created:** [28 November 2024 04:44 UTC](https://discourse.nodered.org/t/project-in-out-scaling-latency/93532 "2024-11-28T04:44:19Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![butteronadonut](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/butteronadonut/32/41374_2.png) [@butteronadonut](https://discourse.nodered.org/u/butteronadonut)\
**Post date:** [28 November 2024 04:44 UTC](https://discourse.nodered.org/t/project-in-out-scaling-latency/93532/1 "2024-11-28T04:44:19Z")

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What are some of the limitations around project-in/out nodes?  
Specifically around the rate they can handle? does the size of message matter?

I have an application where I'm often publishing (project-out node) over 100k message/hour. Today this surged to about 500k/hour and I'm suspect this lead to a latency of 10's to 100's of seconds of latency. [I'll be measuring this implicitly in the near future]. Before today latency has generally been \<10 sec, but I have no idea how much lower, I kinda expect 10ms-100ms, but that's speculation.

Also, does a high usage on certain topics potentially impact performance on other topics (which may have much, much lower usage?

Thank you in advance!

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**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [28 November 2024 08:00 UTC](https://discourse.nodered.org/t/project-in-out-scaling-latency/93532/2 "2024-11-28T08:00:49Z")

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I don't recognize the nodes project in and out. Can you tell us the full node names?

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**Author:** ![GogoVega](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/gogovega/32/71313_2.png) [@GogoVega](https://discourse.nodered.org/u/GogoVega)\
**Post date:** [28 November 2024 08:45 UTC](https://discourse.nodered.org/t/project-in-out-scaling-latency/93532/3 "2024-11-28T08:45:46Z")

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It's FlowFuse nodes: [GitHub - FlowFuse/nr-project-nodes: A set of Node-RED nodes for inter-project communication within the FlowFuse platform](https://github.com/FlowFuse/nr-project-nodes)

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**Author:** ![Colin](https://sea2.discourse-cdn.com/flex026/user_avatar/discourse.nodered.org/colin/32/17040_2.png) [@Colin](https://discourse.nodered.org/u/Colin)\
**Post date:** [28 November 2024 09:28 UTC](https://discourse.nodered.org/t/project-in-out-scaling-latency/93532/4 "2024-11-28T09:28:14Z")

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Thanks, I should have guessed that from the category. I will leave this for those that know what they are talking about to answer.