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# atlantis-communitys
Slackbot
06/22/2023, 8:46 AMThis message was deleted.
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Jason Reslock
06/22/2023, 1:03 PMThis is likely not atlantis but terraform consuming the resources. Atlantis is just a runner and webhook responder right? You can adjust the number of concurrent operations that terraform is allowed to perform (the default seems to be 10)
https://developer.hashicorp.com/terraform/cli/commands/plan#parallelism-n
Jason Reslock
06/22/2023, 1:04 PMSetting this value to less than 10 will result in longer running of plan/apply but may help with how "spiky" the resource utilization is.
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ross strickland
06/22/2023, 3:20 PMisn't the parallel pool size on a per-PR basis and not global? if so, perhaps a feature to set upper limits on concurrent global processes could also be interesting. i may be misremembering the code.
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Maxime Valo
06/23/2023, 1:21 PMThanks @Jason Reslock for your answer. You're right terraform does consume the resources, not Atlantis. I will study this option but my idea was more to get a feature to spread the resource usage over several pods (so on several nodes).
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Jason Reslock
06/23/2023, 1:29 PM@Maxime Valo horizontal scaling would be ideal. There is an open discussion here that has not seen much activity but it is a good starting point for talking about what it would take to implement such a feature.
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PePe Amengual
06/23/2023, 3:56 PMthere is a lot of issues related to scalability and HA
PePe Amengual
06/23/2023, 3:57 PMthe other problem is that we (the maintainers ) can't implement it without the help of the community and coordinating the process would have tricky
PePe Amengual
06/23/2023, 3:58 PMand it needs delelopers commuted to maintain it , etc
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Maxime Valo
06/26/2023, 7:34 AMok I see this is definitely not an easy-to-do improvement.