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  1. Core Server
  2. SERVER-38393

Enable TCP Loopback Fast Path on Windows 8/2012+

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    • Type: Icon: Task Task
    • Resolution: Unresolved
    • Priority: Icon: Minor - P4 Minor - P4
    • None
    • Affects Version/s: None
    • Component/s: Networking
    • Server Programmability
    • Service Arch 2022-09-05

      TCP Loopback Fast Path allows Windows to bypass part of the IP stack if a certain IOCTL is set.

      See https://blogs.technet.microsoft.com/wincat/2012/12/05/fast-tcp-loopback-performance-and-low-latency-with-windows-server-2012-tcp-loopback-fast-path/

      AC: Put up a patch with TCP Loopback Fast Path enabled. Test it in Windows to compare the performance difference in a regular full Evergreen patch run. We're looking for time taken to complete a full patch here, to see if it makes a difference in our CI infrastructure. If there's no noticeable difference, we can close this ticket since we don't intend to prioritize Windows-only performance improvements for production.

            Assignee:
            Unassigned Unassigned
            Reporter:
            mark.benvenuto@mongodb.com Mark Benvenuto
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              Created:
              Updated: