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Unstable performance

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    #91
    Guys, it is better to have PMDG optimizes the performance, I do'nt think above trick works

    we just really enjoy the plane if the performance is good, rather than having a fancy vc dynamic lighting or 4k texture, may you consider it ? rsrandazzo to have a lower texture resolution and dynamic lighting as an option ?
    Last edited by blueng; 13Nov2019, 19:06.
    Alexis Nguyen

    Comment


      #92
      Yeah, I don't believe this is some random bug or obvious mistake on PMDG's side that could be corrected with a small hotfix or a clever trick in the Nvidia Inspector. The plane is just generally heavy on frames, and must be either optimized or stripped down of some features (like the dynamic lights or 4K textures) to perform significantly better.

      Before purchasing the Xu, I watched a couple of videos on YT where the performance was silky smooth, so I bought it without a second thought (because hey, it's PMDG, they always had the best performance and top-level optimization). Imagine my disappointment...
      Dmitriy Kozyrev -- i7-6700 / GTX 960 4GB / 16GB / Win10 1903

      Comment


        #93
        Originally posted by Swaluver88 View Post
        Found a frame jump.


        I decided to go into the nvidia control panel
        Changed:
        antialiasing - off to on
        antialiasing mode- to enhance the application settings
        Antialiasing setting- to 4x
        Opengl rendering GPU - set to (your main GPU)
        power management mode- to prefer maximum performance

        In the sim:
        I went from SSAA X8 to MSAA X4

        Frames jumped form 5-10 to 15-20 (still can feel the loss but a lot more stable frames)

        I tested this out at FB KPHX with ALL LIGHTS ON (Aircraft)

        Now I tried ORBX San Diego (because that hits my frames the most with DL) and i notice a difference of 5 less frames between the two airport which I am seriously happy with this result.


        hardwardware:
        I7-7700K @4.25 OC 17%
        Nvidia GTX 1080TI
        Viper Gaming Ram 16GB DDR4


        Addons:
        REX EF, REX SKY FORCE 3D
        ORBX SAN, PSP, OPEN LC, GLOBAL, VECTOR
        APS4, ASCA
        FB (All sceneries)
        PMDG 737NGX, NGXu, 777
        QW 787
        Everything you touched in the Nvidia settings is meaningless. You saw an FPS increase because you stopped using SSAA. SSAA is a killer, especially in situations with dynamic lighting.

        Alex Pugh

        Comment


          #94
          Just one thing to keep in mind - while DL is certainly causing performance issues, a lot of us are experiencing performance issues during daytime with no lights, too. My NGXu performs at the same kind of performance as the FSL (that is to say, not great at all).
          Rean Opperman

          Comment


          • AndreH
            AndreH commented
            Editing a comment
            I believe daytime performance issues are tied to the EFB. Turn it off and see if it improves. Don't forget the FO side.
            Last edited by AndreH; 14Nov2019, 15:02.

          #95
          Hi all,

          unfortuneately also for me the first time with a PMDG product that I´´m disappointed with the performance :-(
          But I´m sure the future updates will bring better performance.

          Best regards!
          Holger

          Comment


            #96
            Originally posted by aktorsyl View Post
            Just one thing to keep in mind - while DL is certainly causing performance issues, a lot of us are experiencing performance issues during daytime with no lights, too. My NGXu performs at the same kind of performance as the FSL (that is to say, not great at all).
            For sure, but users need to look at low-hanging fruit first.
            Alex Pugh

            Comment


              #97
              My post (#68) can be ignored. It runs fine now. Cleared all shader folders and applied my ts preset again, whatever it was, its gone now. With same save/weatherfile i got 38 fps now, a few less than the 748 but i guess thats fine.
              Alex Wolff

              Comment


                #98
                Just installed the new 9930 and cleared shaders cache. First observations:

                - Performance in ready for take-off state with flood lights on seems way better.
                - The plane now feels slightly slower in C&D state and in external views.
                - Framerate is very unstable, constantly jumping between 40 and 15 fps (averaging at ~28).

                Will test further, but the first impression is positive.
                Last edited by dimkzr; 14Nov2019, 22:06.
                Dmitriy Kozyrev -- i7-6700 / GTX 960 4GB / 16GB / Win10 1903

                Comment


                  #99
                  Originally posted by Senchay View Post
                  My post (#68) can be ignored. It runs fine now. Cleared all shader folders and applied my ts preset again, whatever it was, its gone now. With same save/weatherfile i got 38 fps now, a few less than the 748 but i guess thats fine.
                  How do I clear shader folders? I don’t have any issues running the NGXu but I’m curious now since I’ve been keeping up with multiple threads. Thank you
                  Rocky Jet Melendez ✈️🛰

                  Alienware Area51m Lunar Moon Edition -Laptop. Desk top GPU/CPU in laptop. 17.3 144hz HD screen, 9th Generation Intel Core i7-9700k - 16GB Memory - NVIDIA GeForce RTX 2070 - 1TB Hard Drive + 256GB SSD

                  Comment


                    Originally posted by Rocky Jet Melendez View Post

                    How do I clear shader folders? I don’t have any issues running the NGXu but I’m curious now since I’ve been keeping up with multiple threads. Thank you
                    Delete the contents of this folder:

                    C:\Users\yourname\AppData\Local\Lockheed Martin\Prepar3D v4\Shaders\
                    Rean Opperman

                    Comment


                      Originally posted by aktorsyl View Post

                      Delete the contents of this folder:

                      C:\Users\yourname\AppData\Local\Lockheed Martin\Prepar3D v4\Shaders\
                      Thank you. I wish you 3 greens and soft landings, my friend.
                      Rocky Jet Melendez ✈️🛰

                      Alienware Area51m Lunar Moon Edition -Laptop. Desk top GPU/CPU in laptop. 17.3 144hz HD screen, 9th Generation Intel Core i7-9700k - 16GB Memory - NVIDIA GeForce RTX 2070 - 1TB Hard Drive + 256GB SSD

                      Comment


                      • f.skywalker
                        f.skywalker commented
                        Editing a comment
                        Hello PMDG Team,

                        thank you for the update.
                        Unfortunately with me after the update (9033) over the OP center
                        the frames worse than in the version (9901)
                        I miss some frames for the release version.
                        I deleted the shaders, the Nvidia driver is up to date.
                        Can it be because you did not do a new installation but only an update
                        The frames are now very unbalanced.

                        thanks
                        Frank from EDDM

                      Completed two flights with the new 9930.

                      Conclusion: performance is slightly better in the most demanding scenarios (like in a large airport at night), but overall the plane now performs even worse during climbout/cruize/approach. Also, before this update my fps were stable, but now they're constantly jumping between 40-20.

                      Still borderline unflyable.
                      Dmitriy Kozyrev -- i7-6700 / GTX 960 4GB / 16GB / Win10 1903

                      Comment


                        Tested with both old and updated version in the same place,same time. [ daytime (it gets worse in the night) ].
                        Have same results with AA on/off dynamic lights on/off. I don't use any shaders at the moment and cleared shaders before each test.

                        According to my observation, it is not directly related with dynamic ligting or antialiasing. I think the plane needs to be optimized.
                        I have 30%-%50 fps less than other aircrafts.

                        I believe you guys can make it, I love all of your projects. Hope to see way better fps in the future.
                        Cengizhan Barut

                        Comment


                          Applying the last update. Flying at day is ok. But at night it’s absolutely a no no. Flood lights kills my sim. Drops it don’t to 8-10fps. At daytime, steady 30s. All the other aircraft work fine.

                          I have i7 7700K at 4.8, and GTX 1080i. Mild settings. (Mid settings. 4MSAA, and 1048 textures.

                          its very frustrating. Can’t do night flights.

                          Didn’t happen with any of the other PMDG aircrafts I have them all.

                          Isi Attie .

                          Comment


                            I don't fly with flood lights, it is so heavy on fps, just Dome during night flight, mine is hardly get above 30, in my case (24 - 27 fps) it makes spanning around vc seems a bit laggy,
                            Alexis Nguyen

                            Comment


                              Tested the new 9961.

                              Performance seems slightly better, but only by a few frames.

                              With huge airports like the Heathrow the plane is still barely useable (<15 fps in the cockpit compared to 20-25 with the NG3 and 748), but with smaller airports and on cruize it seems fine. Exterior performance is very good. FPS are still jumping wildly from 45 to 20 (cockpit) and from 90 to 60 (external).

                              Seems like you guys are going in the right direction.
                              Dmitriy Kozyrev -- i7-6700 / GTX 960 4GB / 16GB / Win10 1903

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