Use a smaller/cheaper/more available distro for _gen tasks

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    • Type: Improvement
    • Resolution: Unresolved
    • Priority: Major - P3
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    • Affects Version/s: None
    • Component/s: Testing Infrastructure
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    • DevProd Test Infrastructure
    • DevProd Test Infra 2026-07-28, DevProd Test Infra 2026-08-11
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      The task queue amazon2023-arm64-atlas-latest-m8g-xlarge distro has been an issue for Evergreen. There are often thousands of scheduled _gen tasks that wait a long time for dependencies to be met.

      The _gen tasks can really run on any distro, so we should move them off of the highly contended amazon2023-arm64-atlas-latest-m8g-xlarge, and probably onto a smaller EC2 instance size.

            Assignee:
            Sean Lyons
            Reporter:
            Sean Lyons
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              Created:
              Updated: