Skip to content
View in the app

A better way to browse. Learn more.

The AVSIM Community

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Low FPS while CPU & GPU very under utilized

Featured Replies

Suffering from very low FPS (29-32 FPS and 10-15 FPS in VR) regardless of the scenery payware. I have an x8086 OC @5.2GHz, a 1080Ti OC edition @2025MHz, PiMax 5K+ headset.  Running P3D v4.5 in mid to high settings (2048/x16/4SSAA).  Both CPU and GPU are in the 50s% and temps are around 50-60C too. 

I just updated my Nvida driver to 441 and still, the problem persists.  I am not CPU, GPU, or Monitor bound and  Task Manager > Performance tab and HWMonitor are showing everything at or well below 50% utilized across the board!!!

Thanks,

Mustafa

 

It would help more if you could show us all your setting in screenshots please.

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

If you're looking at *total* CPU utilization, it's not telling you the real story.  The limiting factor on CPU performance is the Core 0 utilization, which can be maxxed out at 100% with the other five cores down in the teens when terrain/texture loading is not occurring--the "total" CPU load across all six cores might be 40-50%, but you're still against the CPU wall due to the load on Core 0 where the main thread runs.

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

Changing from SSAA to MSAA settings will have a significant impact on performance.

Dan Downs KCRP

Today I notice a strange drop of FPS (pretty massive) arriving at Dublin in the PMDG B748 and went into investigation. It was nighttime, some moonlight which made the clouds excessively alight for my taste (it started happening in the latest P3D versions since modifying shaders doesn't seem to make the expected changes anymore) and nothing that would seem to create this performance loss. I noticed that CPU was not very utilised, not even Core Zero was near full capacity, instead the video card was at 100% usage, it's a 1080 TI. Curious about it.

Best regards,

Wanthuyr Filho

Instagram: AeroTacto

For some reason the online Vpilot  software in combo with FSL drains my CPU and FPS performance.

At first glance its difficult to find the reason for the fps drop and looking at CPU usage its taking about 10-15% of the total.

A restart of the software sometimes help.

Maybe third-part add-ons can have a simular impact so try without any and see if its related to P3D itself or something outside

Michael Moe. 

Michael Moe

 

fs2crew_747_banner1.png

Banner_FS2Crew_Emergency.png

  • 3 weeks later...
  • Author

I figured it out. It was my Pimax 5K+ VR headset terrible software (PiTool) that was sucking all the FPS and somehow draining every last bit of core 0 processing power. After fiddling with it for hours at end and changing to all sorts of versions, I gave up and went back to my Samsung Odyssey+ headset, lesser FOV but decent enough. I immediately went from 14 FPS at FlightBeam's Dulles KIAD on the Pimax to 28 FPS on the old Samsung headset, what a waste of time and money.  I'm a happier camper now :)

I really hope MSFS 2020 will have better FPS when running on all cores, and I hope they release it VR ready.

Thanks all...

Mustafa

On 12/8/2019 at 9:15 PM, Wanthuyr Filho said:

Today I notice a strange drop of FPS (pretty massive) arriving at Dublin in the PMDG B748 and went into investigation. It was nighttime, some moonlight which made the clouds excessively alight for my taste (it started happening in the latest P3D versions since modifying shaders doesn't seem to make the expected changes anymore) and nothing that would seem to create this performance loss. I noticed that CPU was not very utilised, not even Core Zero was near full capacity, instead the video card was at 100% usage, it's a 1080 TI. Curious about it.

What you are seeing might have been SSAA + HD both on.  Have a 1080ti as well, and at night that heavily impacts performance.  Were you running SSAA + HD lighting during your arrival?

Rhett

7800X3D 96 GB G.Skill Flare  Gigabyte 4090  Crucial P5 Plus 2TB

Archived

This topic is now archived and is closed to further replies.

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.