February 21, 20215 yr does ubuntu use tunedadm? yos https://askubuntu.com/questions/1175266/how-should-i-setup-tuned-adm https://computingforgeeks.com/optimize-linux-system-performance-with-tuned-adm/?amp Edited February 21, 20215 yr by mSparks AutoATC Developer
February 21, 20215 yr 3 hours ago, jarmstro said: I would say Linux is yielding an extra two or three fps. There is a difference but it is in no way substantial. And that is what everyone (except for one person 🙄) expected. Thanks for going through all the trouble, John. No doubt your results will be accepted (except by one person) and we can finally go back to the truth that is reflected in Linux vs Windows/Mac usage numbers. I feel sorry for you that you were led to believe the fairy tales that some people spread here, but thanks for taking one for the team. Cheers, Jan
February 21, 20215 yr Author I also should add that although I get a very small fps increase with Linux a factor may be that the Linux install is fresh with nothing else installed on in. My Windows 10 installation is old having been a free upgrade from Vista and it's probably clogged up with accumulated junk running invisibly in the background.
February 21, 20215 yr 4 hours ago, jarmstro said: I would say Linux is yielding an extra two or three fps. There is a difference but it is in no way substantial. Before conclusions, try this: cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor in your terminal, what does the output say? at least in my system, ubuntu, "out of the box" begins with power save mode unless i change it. you are right reflections are a killer and they claim to work on them after they are done with "new features", probably for xplane 12, it's about cpu->gpu drawcalls for a same scene in which xplane is still limited but the good news, vulkan gives great multi-threading environment to build upon so we can really expect big gains in the future.
February 21, 20215 yr Author 2 hours ago, akita said: cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor in your terminal, what does the output say? It says ondemand about six times.
February 21, 20215 yr 23 minutes ago, jarmstro said: It says ondemand about six times. Although I expect it to not help a lot, try forcing it to performance: echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor it'll ask for admin password.
February 21, 20215 yr Author 1 hour ago, akita said: Although I expect it to not help a lot, try forcing it to performance: echo performance | sudo tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor it'll ask for admin password. No discernible difference as far as I can see. There are any number of these voodoo magic tweaks for Windows as well.
February 21, 20215 yr 8 minutes ago, jarmstro said: No discernible difference as far as I can see. There are any number of these voodoo magic tweaks for Windows as well. oh yeah but it's not "voodo". I for one keep forgetting about it, upload xplane and have horrible fps, then with "performance" mode everything recovers. So I was here just to remind based on some personal pain lol
February 21, 20215 yr I dunk my computer into a barrel full of "Nividia Performance Boost Snake Oil" I purchased from a trusted vendor for the bargain of 2000,-$ every month and it really helps...I think. 🙄
February 21, 20215 yr 6 hours ago, jarmstro said: I also should add that although I get a very small fps increase with Linux a factor may be that the Linux install is fresh with nothing else installed on in. My Windows 10 installation is old having been a free upgrade from Vista and it's probably clogged up with accumulated junk running invisibly in the background. turn these off for testing 10 hours ago, jarmstro said: AA - 1 notch from max AF - 1 notch from max AA 4x SSAA at 1080p means you are rendering at 4K, 2160p is 8K, that likely pins performance to the GPU memory bandwidth and generally performance, its also fairly unstable in terms of FPS from what I've seen. You'll get a better Idea of the OS performance difference with them off, then turn them up after until you are comfortable with the hit. Also compare CPU times rather than FPS which is where the difference is right now I am here with FXAA going to 4x basically triples my GPU time - 1 third of the performance of FXAA, even though FPS didn't change much here, that's a massive hit it places where GPU time is already high. (also, you have to exit XP and restart to get changes there to stick, which imho is how people end up with it to high, they crack it up, dont see an fps change straight away, then forget about it next time XP is started) Edited February 21, 20215 yr by mSparks AutoATC Developer
February 21, 20215 yr Author 56 minutes ago, mSparks said: turn these off for testing AA 4x SSAA at 1080p means you are rendering at 4K, 2160p is 8K, that likely pins performance to the GPU memory bandwidth and generally performance, its also fairly unstable in terms of FPS from what I've seen. You'll get a better Idea of the OS performance difference with them off, then turn them up after until you are comfortable with the hit. Also compare CPU times rather than FPS which is where the difference is right now I am here with FXAA going to 4x basically triples my GPU time - 1 third of the performance of FXAA, even though FPS didn't change much here, that's a massive hit it places where GPU time is already high. (also, you have to exit XP and restart to get changes there to stick) My monitor is 2560 x 1440 @ 70hz? I always normally run XP with AA one notch from max? Seems to run fine. Just can't stand jaggies and flickering. FPS is what matters to me. As long as it never drops below 20 I'm good. Vulkan has eliminated any stuttering even at 20fps. I'm very happy with the performance I get with my main XP install. My sweet spot setting are. Visual Effects - one notch from max Texture Quality - one notch from max AA- one notch from max FA - in the middle Number or World object - Max Reflections - minimum Shadows - on The big no no's are Reflections and AI planes. I was hoping that Linux would allow me to turn up Reflections but it's not to be. - Edited February 21, 20215 yr by jarmstro
February 21, 20215 yr Author 27 minutes ago, mSparks said: turn these off for testing Turn what off? I have no clue which are essential services or crud.
February 21, 20215 yr 11 hours ago, jarmstro said: AA - 1 notch from max Reflections - 1 notch from max Those are your performance killers, especially AA. Quote I would say Linux is yielding an extra two or three fps. There is a difference but it is in no way substantial. Told you. 7 hours ago, jarmstro said: I also should add that although I get a very small fps increase with Linux a factor may be that the Linux install is fresh with nothing else installed on in. My Windows 10 installation is old having been a free upgrade from Vista and it's probably clogged up with accumulated junk running invisibly in the background. Linux is no less cluttered with services, but I figure Windows' security systems running in the background (Defender) may play a part, even when there is an exception for X-Plane. 1 hour ago, Janov said: I dunk my computer into a barrel full of "Nividia Performance Boost Snake Oil" I purchased from a trusted vendor for the bargain of 2000,-$ every month and it really helps...I think. 🙄 Changing the CPU governor is an out-of-the-box tweak and has nothing to do with the "Faster RAM for $50" BS offered to guillible Windows users. Edited February 21, 20215 yr by Bjoern 7950X3D + 7900 XT + 64 GB + Linux | 4800H + RTX2060 + 32 GB + Linux My add-ons from my FS9/FSX days
February 21, 20215 yr 57 minutes ago, jarmstro said: My monitor is 2560 x 1440 @ 70hz? AA works by increasing the resolution x times, then shrinking the image down to the size of your monitor. So 4x AA at 1440p is slightly slower (due to the shrinking) than running at 10240x5760 resolution while not looking quite as good. Linux/Windows/whatever can't help with that, the ~30fps you are seeing there is most likely because you GPU is taking 33ms (0.033seconds) to render that many pixels, but Linux vs Windows is an improvement in CPU time for the same settings. Say your CPU is taking 0.033 seconds and your GPU is also taking 0.033 seconds on windows. Even if you got twice the performance out of your CPU switching to linux, fps would remain then same, CPU time would be 0.016 seconds, GPU time would still be 0.033 seconds - and your CPU would just spend 0.016 seconds waiting for the GPU. You would only see fps increase by lowering AA so the CPU isn't waiting as much. (yes, I know this is really confusing, sorry, I still dont have a "foolproof" way to describe it. 57 minutes ago, jarmstro said: Just can't stand jaggies and flickering. I'm not saying turn it off forever - just for comparison/getting a feel for what your XP is spending its time on, then you can make an informed decision on what you want it to spend its time on. I have some custom tweeks to settings.txt that changes the meaning of these sliders a bit, and I'm still crazy mad SSAO is borken, but with those, and these settings I'm now at >90fps 2D, 60fps locked VR with processor : 0 model name : AMD Ryzen 9 5900X 12-Core Processor cpu MHz : 4488.155 processor : 1 model name : AMD Ryzen 9 5900X 12-Core Processor cpu MHz : 4490.764 processor : 2 ... ... model name : AMD Ryzen 9 5900X 12-Core Processor cpu MHz : 4474.489 processor : 22 model name : AMD Ryzen 9 5900X 12-Core Processor cpu MHz : 4476.950 processor : 23 model name : AMD Ryzen 9 5900X 12-Core Processor cpu MHz : 4496.789 MemTotal: 32860860 kB X-System folder:'/home/msparks/nvme/X-Plane 11/', case sensitive=1 Vulkan Layers : VK_LAYER_NV_optimus (1), VK_LAYER_MESA_device_select (1), VK_LAYER_VALVE_steam_overlay_32 (1), VK_LAYER_VALVE_steam_overlay_64 (1), VK_LAYER_VALVE_steam_fossilize_32 (1), VK_LAYER_VALVE_steam_fossilize_64 (1) Vulkan Device : GeForce RTX 3070 () I can turn up reflections in 2D, just not really for VR 1 hour ago, Janov said: I dunk my computer into a barrel full of "Nividia Performance Boost Snake Oil" The main thing with tuned is making sure the CPU is actually running at the desired frequency, often by default Linux will run XP at around 2Ghz (and still match windows), "tuned" lets you say "I dont care about my electricity bill, give me them frames" Edited February 21, 20215 yr by mSparks AutoATC Developer
February 21, 20215 yr Author 16 minutes ago, mSparks said: The main thing with tuned is making sure the CPU is actually running at the desired frequency, often by default Linux will run XP at around 2Ghz (and still match windows), "tuned" lets you say "I dont care about my electricity bill, give me them frames" I really do not know what your point is? What I have done is to install Linux and compare its performance with XP running on Windows in as fair a way as I can? It's that simple. I've been doing a lot more testing this afternoon and can confirm that on my system Linux gives me an average fps increase of 2 FPS. Both sims run smoothly with the settings I use. Interestingly the higher my settings the less the FPS gain. Ie. If I'm getting 40 FPS in Windows I will get 43 FPS in Linux. However if I'm only getting 25 FPS in Windows I will only get 26 FPS in Linux.
Create an account or sign in to comment