March 15, 20197 yr Hi I have a question about Hyper-Threading ON or OFF in P3DV4.4? Here are my specs: I7 6700K on Asus Maximus VIII Motherboard Geforce 2080 LG 43 Zoll 4k Monitor via Displayport P3D V4.4 PMGD 737 / 777 / 747 Here is my Question: When I switched last week to the 4k Monitor I locked the frame rate to 30 fps (1/2 refresh rate) in the Nvidia Inspector and tried some tweaking in the cfg file: [DISPLAY] TEXTURE_BANDWIDTH_MULT=160 [SCENERY] MaxRegionsPurgePerFrame=1 [JOBSCHEDULER] AffinityMask=85 [TERRAIN] UseGlobalTerrainView=True TEXTURE_SIZE_EXP=9 The Settings in OPTIONS/GRAPHICS all mainly all 1 Step under Maximum. The AffinityMask=85 is meant to be used with HT on. But then I turned off the Hyper-Threading in the BIOS and changed it to AffinityMask=15. The Prozessor is now running with 70% and the GPU with 30% and average 1515 MHz (sometimes 1800-1900 MHz) in 4K single Monitor 30 fps locked. How are your experiences with HT ON or OFF? Do you have any advices for the tweaks & settings? Greetings Erik
March 15, 20197 yr 22 minutes ago, enrico10999 said: Hi I have a question about Hyper-Threading ON or OFF in P3DV4.4? Here are my specs: I7 6700K on Asus Maximus VIII Motherboard Geforce 2080 LG 43 Zoll 4k Monitor via Displayport P3D V4.4 PMGD 737 / 777 / 747 Here is my Question: When I switched last week to the 4k Monitor I locked the frame rate to 30 fps (1/2 refresh rate) in the Nvidia Inspector and tried some tweaking in the cfg file: [DISPLAY] TEXTURE_BANDWIDTH_MULT=160 [SCENERY] MaxRegionsPurgePerFrame=1 [JOBSCHEDULER] AffinityMask=85 [TERRAIN] UseGlobalTerrainView=True TEXTURE_SIZE_EXP=9 The Settings in OPTIONS/GRAPHICS all mainly all 1 Step under Maximum. The AffinityMask=85 is meant to be used with HT on. But then I turned off the Hyper-Threading in the BIOS and changed it to AffinityMask=15. The Prozessor is now running with 70% and the GPU with 30% and average 1515 MHz (sometimes 1800-1900 MHz) in 4K single Monitor 30 fps locked. How are your experiences with HT ON or OFF? Do you have any advices for the tweaks & settings? Greetings Erik This is very system dependent. My recommendation with that CPU is to run with HT enabled. Try a few different affinity mask values and see what works best. I would also start with a fresh config file. Do not change anything in it except affinity mask till you have a smooth sim. Lock your frames to 30-33 FPS. Matt Wilson
March 15, 20197 yr My last quad-core was a 7700K, and I found that HT on with an affinity mask of 245 worked well. That keeps core 0 and 1 confined to a single virtual CPU, and allows texture loading etc on both virtual CPUs on cores 2-3. But yes, system and configuration dependent. YMMV Regards Bob Scott | President and CEO, AVSIM Inc ATP Gulfstream II-III-IV-V Sys1 (MSFS20+24/XPlane12+11): AMD 9800X3D, water 2x240mm, MSI MPG X670E Carbon, 64GB GSkill 6000/30, nVidia RTX4090FE Alienware AW3821DW 38" 21:9 GSync, 2x4TB Crucial T705 PCIe5 + 2x2TB Samsung 990 SSD, EVGA 1000P2 PSU, 12.9" iPad Pro Thrustmaster TCA Boeing Yoke, TCA Airbus Sidestick, Twin TCA Airbus Throttle quads, PFC Cirrus Pedals, Coolermaster HAF932 case Sys2 (P3Dv5/v4): i9-13900KS, water 2x360mm, ASUS Z790 Hero, 32GB GSkill 7800MHz CAS36, ASUS RTX4090 Samsung 55" JS8500 4K TV@60Hz, 3x 2TB WD SN850X 1x 4TB Crucial P3 M.2 NVME SSD, EVGA 1600T2 PSU Fiber link to Yamaha RX-V467 Home Theater Receiver, Polk/Klipsch 6" bookshelf speakers, Polk 12" subwoofer, 12.9" iPad Pro PFC yoke/throttle quad/pedals with custom Hall sensor retrofit, Thermaltake View 71 case, Stream Deck XL button box Sys3 (DCS/P3Dv4/ATS/ETS): AMD 7800X3D, MSI MPG X870E Carbon, Noctua NH-D15S, 64GB GSkill 6000/30, EVGA RTX3090 Alienware AW3420DW 34" 21:9 GSync, Corsair HX1000i PSU, 4TB Crucial T705 PCIe5 + 2TB Samsung 970Evo Plus, TM TCA Officer Pack, Saitek combat pedals, TM Warthog, TM RS300 FF wheel/pedals, Coolermaster HAF XB case
March 15, 20197 yr I keep HT off. And since P3Dv4 no tweaking of Prepar3D.cfg. Sim is smooth running. If it ain't broke don't fix it. Edited March 15, 20197 yr by BillS511
March 15, 20197 yr Off - reason is can now run stable at 5ghz instead of 4.5ghz with less heat on 7700k No FSX like tweaks are required on P3D 4.4 including AM. Cheers bs Edited March 15, 20197 yr by bean_sprout AMD RYZEN 9 5900X 12 CORE CPU - ZOTAC RTX 3060Ti GPU - NZXT H510i ELITE CASE - EVO M.2 970 500GB DRIVE - 32GB XTREEM 4000 MEM - XPG GOLD 80+ 650 WATT PS - NZXT 280 HYBRID COOLER
March 15, 20197 yr HT off for quads HT on for 6+cores with Using affinitymask to assign physical cores
March 15, 20197 yr Commercial Member For me... No HT No Invidia Inspector No cfg tweaks but one - added maximum trees and agn buildings Ben very happy with my mid-end (as opposed to a high-end), PC system. Intel i9-12900KF, Asus Prime Z690-A MB, 64GB DDR5 6000 RAM, (3) SK hynix M.2 SSD (2TB ea.), 16TB Seagate HDD, Gigabyte GeForce 5080 RTX, Corsair iCUE H70i AIO Liquid Cooler, UHD/Blu-ray Player/Burner (still have lots of CDs, DVDs!) Windows 10, (hold off for now on Win11), EVGA 1300W PSUNetgear 1Gbps modem & router, (3) 27" 1440 wrap-around displaysFull array of Bravo, Saitek and GoFlight hardware for the cockpit. Varjo and HP VR headsets for mixed reality.
March 15, 20197 yr It depends on how many cores your CPU has. For a quad core, HT ON. Hexacore, octacore, HT OFF. V4.4 is actually pretty good at distributing CPU workload, out of the box. (and I know that some will argue that Windows takes care of that.. etc) Also, affinity masks are of less value since V4.4 came out.. LM is doing a pretty good job No real need for tweaks any more, in my experience. Edited March 15, 20197 yr by Bert Pieke Bert
March 15, 20197 yr All the above answers are why it's PC dependent. Every PC runs diffrently. Sadly you have to try different setting from HT ON or OFF and what AM works for your system. It's a mind field and time costly. No point in saying what works on my 4 core as I have spent hours getting P3D working as it does. It also well might not work on yours. Sorry, it's all about trial and sees what works for you. David Murden. MSFS • Fenix A320 • PMDG 737 • MG Honda Jet • 414 / TDS 750Xi • FS-ATC Chatter • FlyingIron Spitfire & ME109G • MG Honda Jet • • Fenix A320 Walkthrough PDF • Flightsim.to • DCS • A10c II • F-16c • F/A-18c • F-14 • (Others in hanger) • Supercarrier • Terrains = • Nevada NTTR • Persian Gulf • Syria • Marianas • • [email protected] All Cores HT ON • 32GB DDR4 3200MHz • RTX 3080 • TM Warthog HOTAS • TM TPR • Corsair Virtuoso XT with Dolby Atmos® • Samsung G7 32" 1440p 240Hz • TrackIR 5 & ProClip •
March 15, 20197 yr Mine ran the same either on or off FPS wise and didn't notice any difference with AutoGen loading. Slightly warmer with HT on, but only a 2*C difference. Because I use my system for other tasks and games that use HT effectively, I keep mine on. Devin CYOW
March 15, 20197 yr Author Hi, thanks for your answers! With HT OFF I did a flight from EDDT to EDDF (ORBX Germany North & South) and got some blurry textures in the scenery on approach, not the airport. So I went back to HT ON, and deleted some of my custom made entries in the cfg. The only one is custom made entry actually : TERRAIN]UseGlobalTerrainView=TrueTEXTURE_SIZE_EXP=9 In the moment the system runs stable at 30 fps, HT ON, CPU 60-90%, GPU 30% 1515 MHz. Thanks for help! Erik
March 15, 20197 yr 4 minutes ago, enrico10999 said: Hi, thanks for your answers! With HT OFF I did a flight from EDDT to EDDF (ORBX Germany North & South) and got some blurry textures in the scenery on approach, not the airport. So I went back to HT ON, and deleted some of my custom made entries in the cfg. The only one is custom made entry actually : TERRAIN]UseGlobalTerrainView=TrueTEXTURE_SIZE_EXP=9 In the moment the system runs stable at 30 fps, HT ON, CPU 60-90%, GPU 30% 1515 MHz. Thanks for help! Erik TEXTURE_SIZE_EXP=9 is redundant if you have High Res Terrain Textures set to ON in the main P3D graphics panel. Happy you have it running well! ps.. you can leave it in, does not hurt.. Edited March 15, 20197 yr by Bert Pieke Bert
March 15, 20197 yr Commercial Member I just figured I'd share that we've had numerous conversations (threads) here on AVSIM on this topic each year since around 2009, and I've contributed to those threads. They contain some terrific information, and of course that information isn't going to change so it's still valid. Best wishes! Dave Hodges System Specs: I9-13900KF, NVIDIA 4070TI, Quest 3, Multiple Displays, Lots of TERRIFIC friends, 3 cats, and a wonderfully stubborn wife.
March 15, 20197 yr 21 minutes ago, DaveCT2003 said: I just figured I'd share that we've had numerous conversations (threads) here on AVSIM on this topic each year since around 2009, and I've contributed to those threads. They contain some terrific information, and of course that information isn't going to change so it's still valid. Best wishes! Dave, that is certainly true, but LM is continuing to develop/change P3D, with each release behaving differently from the previous.. so I would caution folks against taking the "old wisdom" and applying it to V4.4. Bert
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