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  6. Performance Issues with Starship – Sporadic FPS Drops

Performance Issues with Starship – Sporadic FPS Drops

Scheduled Pinned Locked Moved Starship
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  • Black SquareB Black Square

    Have you downloaded v1.1? I had some complaints that I could not reproduce of performance degradation on long flights in v1.0, but that seems to have been solved with v1.1. Actually, I've been quite thankful that I haven't had any repeat comments about performance issues after v1.1. Given the fact that you say it doesn't occur every time, nor depends on the duration of the flight, I can't imagine what could be causing such an issue within my code.

    If you want me to look into this, I will need some more information, like what other addons you have installed, what you were doing when you noticed the issue, whether you imported a flight plan, your typical flying habits and mission, just anything that might help us find the cause of the problem.

    N Offline
    N Offline
    NavyNhok
    wrote last edited by
    #9

    @Black-Square Hello, The actual version is V0.1.1 ?

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    • N NavyNhok

      @Black-Square Hello, The actual version is V0.1.1 ?

      R Offline
      R Offline
      rafgath
      wrote last edited by
      #10

      @NavyNhok said in Performance Issues with Starship – Sporadic FPS Drops:

      @Black-Square Hello, The actual version is V0.1.1 ?

      Yes. Screenshot 2025-07-15 182948.png

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      • Black SquareB Offline
        Black SquareB Offline
        Black Square
        Black Square Developer
        wrote last edited by
        #11

        Thank you. That video showed exactly what I was looking for. Notice how the every-other-frame stutter is in the "manipulators" thread? We don't have any documentation on what this actually includes, but it's not usually anything I affect as a developer. I have brought this strange behavior to Asobo's attention, but they have shown no interest yet.

        You can read about others encounters with this in v1.0 (I thought it was solved for 1.1, as nobody else has reported it again) here, and a BIOS setting that might have an important impact on this issue. If you try it, please let me know if it makes a difference for you!

        In the meantime, I will investigate what systems are connected only to the pilot's avionics switch (more complicated than it sounds with how I've programmed Starship's avionics), and I might give you some more things to try, if you were willing. Thank you!

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        • R rafgath

          @NavyNhok said in Performance Issues with Starship – Sporadic FPS Drops:

          @Black-Square Hello, The actual version is V0.1.1 ?

          Yes. Screenshot 2025-07-15 182948.png

          N Offline
          N Offline
          NavyNhok
          wrote last edited by
          #12

          @rafgath Thanks!

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          • Black SquareB Offline
            Black SquareB Offline
            Black Square
            Black Square Developer
            wrote last edited by Black Square
            #13

            I was just testing this a little, and I realized there is something you could try that would be immensely helpful. Sorry to ask for help, but it's very hard troubleshooting something that you can't reproduce on any computer you have access to, as you might imagine.

            Next time you see this happening, could you try pulling the following circuit breakers, in this order, and see which one has an effect on the problem?

            1. RADAR
            2. ND No. 1
            3. PFD No. 1
            4. CDU No. 1
            5. HF
            6. ASI No. 1
            7. ALT No. 1
            8. SDU No. 2
            9. ADC No. 1
            10. Clock PLT
              ~Only proceed to these, if none of the above made a difference~
            11. DME No. 1
            12. FCS No. 1
            13. FMS No. 1
            14. ADF
            15. RAD ALT
            16. ATC No. 1
            17. NAV No. 1
              Finally, if none of those made a difference, turn off the pilot's avionics switch for one final test.

            That should really help narrow things down. I know that might seem like a lot of work, but hopefully it will go very quickly. Ironically, it's also not dissimilar from what a real aircraft might be asked to do by his maintenance technician to troubleshoot the real aircraft.

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            • Black SquareB Black Square

              I was just testing this a little, and I realized there is something you could try that would be immensely helpful. Sorry to ask for help, but it's very hard troubleshooting something that you can't reproduce on any computer you have access to, as you might imagine.

              Next time you see this happening, could you try pulling the following circuit breakers, in this order, and see which one has an effect on the problem?

              1. RADAR
              2. ND No. 1
              3. PFD No. 1
              4. CDU No. 1
              5. HF
              6. ASI No. 1
              7. ALT No. 1
              8. SDU No. 2
              9. ADC No. 1
              10. Clock PLT
                ~Only proceed to these, if none of the above made a difference~
              11. DME No. 1
              12. FCS No. 1
              13. FMS No. 1
              14. ADF
              15. RAD ALT
              16. ATC No. 1
              17. NAV No. 1
                Finally, if none of those made a difference, turn off the pilot's avionics switch for one final test.

              That should really help narrow things down. I know that might seem like a lot of work, but hopefully it will go very quickly. Ironically, it's also not dissimilar from what a real aircraft might be asked to do by his maintenance technician to troubleshoot the real aircraft.

              R Offline
              R Offline
              rafgath
              wrote last edited by rafgath
              #14

              @Black-Square Sure, as soon as it happens again, I'll check it like you asked.

              One question. You listed FCS No. 1 twice. What should the second one be instead of FCS No. 1

              And below is a screenshot from my BIOS.

              IMG_4391.JPEG

              Black SquareB 1 Reply Last reply
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              • M Offline
                M Offline
                MD82
                wrote last edited by
                #15

                I believe C-State Control needs to be enabled?

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                • J Offline
                  J Offline
                  jmarkows
                  wrote last edited by
                  #16

                  The BIOS pic has me wondering: the people with FPS issues, could there be thermal throttling at play? My newest build has a 14th gen i9, and for those who follow tech is the Intel cpu that was famously self-destructing on launch. I came in late, but had some issues with stability that were resulting in my CPU asking for (and getting!) upwards of 500A.

                  I have since become keenly aware of CPU voltages and temperatures lol, but with some BIOS configuration it's been drastically reduced.

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                  • R rafgath

                    @Black-Square Sure, as soon as it happens again, I'll check it like you asked.

                    One question. You listed FCS No. 1 twice. What should the second one be instead of FCS No. 1

                    And below is a screenshot from my BIOS.

                    IMG_4391.JPEG

                    Black SquareB Offline
                    Black SquareB Offline
                    Black Square
                    Black Square Developer
                    wrote last edited by
                    #17

                    @rafgath Sorry, FMS No. 1.

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                    • Black SquareB Black Square

                      @rafgath Sorry, FMS No. 1.

                      R Offline
                      R Offline
                      rafgath
                      wrote last edited by rafgath
                      #18

                      @Black-Square Another flight and another FPS drop (maybe because it's exactly the same flight every time). Please see the video link below. Luckily, I didn't have to click too many circuit breakers, as everything returned to normal after turning ND No. 1 off and back on.

                      https://youtu.be/4aDTWlVdmPM

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