OK, this might seem odd, can there be an FPS leak?? Something similar to say a memory leak...

I  did a small 30 min flight last night with PMDG 737 and FlightBeam KIAD.  I departed KIAD went on a short around the D.C. area and then returned back to KIAD, landed and then shut down.  It was at night and with ASN current conditions.  Those included overcast and slight rain.  On the ground FPS high 30's - mid 40's.  In the air, high 40's to mid 50's.  When I woke up this morning the sim was still running, with partly cloudy skies, however, the FPS had dropped to the mid 20's...

I don't expect the sim to run forever with high FPS.  I expect it to change as time goes on, but based on weather, AI, settings etc.  Any thoughts??

· Specs:
o Case: EVGA DG-86 (Average Case Temp 28°C)
o Fans: 5xCorsair PML 140 Pro Led (3 Front Case and 2 Rear Case) and 3xCorsair PML 120 Pro Led (Primary Top Case) / EKWB-Furious Vader EVO 140x 3 and EKWB-Furious Vader EVO 120x 3 (As Back-up)
o CPU: Intel 8700k
o GPU: GB Aorus Xtreme Geforce GTX 1080ti Waterfroce WB
o MB: GB Z370 Aorus Gaming 7 (*Note* the top M.2 slot is not utilized, to avoid turning off the 0 SATA Port)
o RAM: G. SKILL TridentZ RGB 32GB SDRAM DD4 3200 CL14
o Audio Card: Creative SBX AE-5 7.1
o PSU: Thermaltake PS-TPG-1250DPCTUS-T G RGB 1250W
o Storage 1: Samsung 960 EVO M.2 500GB (OS) Windows Home 64bit
o Storage 2: Samsung 960 EVO M.2 500GB (P3D) Prepar3d Academic Vs. I am currently enrolled with Embry Riddle Aero
o Storage 3: WD Black 6TB Performance Desktop HDD (Photo Scenery)
o Storage 4: Samsung 860 Pro 500GB (Other Gaming Drive)
o Storage 5: Samsung 860 Pro 500GB (P3D File and Gaming File Storage)
o Storage 6: Samsung 860 EVO 1TB (Music and Document File Storage)
o Storage 7: WD Black 1TB HDD (Movie File Storage)
o Storage 8: WD Black 1TB HDD (TV Series File Storage)
o BT/Wi-Fi: ASUS PCE-AC55BT
o Lighting Rod: LOGISYS UV Deluxe Sound Activated Cold Cathode
o Lighting Strips: CableMod WideBeam Hybrid LED 60CM RGB (UV with an additional 60CM Extension)
o Cables: CableMod Modmesh Nylon Blue
o Monitor: ASUS ROG Swift PG27VQ OC 165GHz
o Speaker: Creative Katana Sound Bar / Logitech G933 Headset for P3DV4

· Cooling:
o CPU/MB: EKWB FB GA Z370 Gaming RGB Monoblock for both the CPU and MB
o GPU: Pre-Installed WB
o M.2 SSD: EKWB NVMe Blue Heatsink x2
o Coolant: EKWB CryoFuel Blue Premix UV Reactive
o Pump: EKWB-XTOP DDC 3.2 PWM Elite
o Reservoir: EKWB RES X3 250 RGB
o Radiator: EKWB Coolstream XE 360 and EKWB Coolstream CE 420 (For Top and Front Positions)
o Cable: EKWB DuarClear UV with PrimoChill Anti-Kink Coil UV Reactive
o Temp Sensor: Thermaltake Pacific Temp Sensor

· Settings:
o OC Settings:
§ CPU: I7-8700K; (OC to 5.0GHz @ 1.435V, Temp: 40-60C°) Verified Stability
· Core 0-5 set to 50x
· Core Voltage: 1.435V / VCore LLC: Extreme / Core Voltage Mode Adaptive
· AVX Ratio: N/R

§ GPU: Gigabyte Aorus Xtreme Geforce GTX 1080ti WF WB; (OC to 1746GHz, Temp: 30-50C°) Verified Stability
· Aorus Graphic Engine: Set to OC Mode
· GPU Boost Clock 1746MHz
· Memory Clock 11448MHz

§ Memory: G. SKILL TridentZ RGB 32GB SDRAM DD4 3200 CL14;
· OC using XMP Profile 1 

o Nvidia Control Panel:
§ All Default, except;
· Prefer Maximum Performance
· Shader Cache Off 

o Nvidia Inspector: PREPAR3D.exe
§ All Default, except;
· Single Display Performance Mode
· Prefer Maximum Performance
· Shader Cache Off 

o System Sound Settings:
§ Speakers Properties;
· 16-bit, 44100 Hz CD Quality
· Allow applications to take exclusive control of this device: Not Selected
· Communications: Do Nothing Selected

o Logitech G933 Headset:
· Surround Settings Not Utilized Only Stereo Option is Selected

o P3D V4.2
§ Traffic:
· Aviation Traffic: None Selected
· Land and Sea Traffic: Road Vehicles 0%, Ships and Ferries 20% and Leisure Boats 0%
§ Display:
· FXAA: Off
· AA: (Day) 2-8xSSAA or (Night) 8xMSAA All depending on location and conditions
· Texture Filtering: Anisotropic 8X
· Texture Resolution: High 2048x2048
· Autofill Main View: Selected
· Black Out Desktop: Not Selected
· VSync: On
· Trippel Buffering: Selected
· Target Frame Rate: Unlimited
· Wide-view Aspect Ratio: Selected
· Mipmap VC Panels: Selected
§ World:
· Level of Detail Radius: Max
· Tessellation Factor: Ultra
· Mesh Resolution: 5m
· Texture Resolution: 15cm
· Scenery Complexity: Dense
· Autogen Draw Distance: Very High
· Autogen Vegetation Density: Dense
· Autogen Building Density: Dense
· Water Detail: Medium (NO Reflections or Bathymetry)
· Special Effects Aircraft and Distance: Medium
§ Lighting:
· HDR Lighting: Selected
· Dynamic Reflections: Medium
· Dynamic Lighting: Selected
· Landing-lights Illuminate Ground: Selected
· Shadow Quality: Medium
· Shadow Draw Distance: High
· Shadows Cast Selected: Internal Vehicle, External Vehicle, Clouds and Terrain
· Shadows Receive Selected: Internal Vehicle, External Vehicle and Buildings
§ Weather:
· Cloud Draw Distance 60mi
· Cloud Coverage Density: Maximum
· Simple Clouds: Not Selected
· Detailed Clouds: Selected
· Volumetric Fog: Selected
· Detailed Precipitation: Selected
· Windshield Effects: Selected
· Thermal Visualization: Natural
· Enable Turbulence and thermal effects on vehicle: Selected
· Rate at which weather changes over time: No Change

o Active Sky Next:
§ General Options;
· Download Interval: 20 minutes
· Prevent Downloads while on app: Selected
§ Simulator Depiction Options;
· Suppress local weather changes: Selected
· Depict Hurricanes: Not Selected
§ Cloud Options;
· Maximum Cloud Layers: 5
· Maximum Cloud Draw Distance: 120nm
· Multi-Layer Thunderstorm: Not Selected
· Cloud Motion Effect: Selected
§ Visibility Options;
· Enable Wing Fade Effect: Selected
· Fog Layer Generation: Selected
· Maximum Surface Visibility: 75nm
· Maximum Upper Visibility: 199nm
· In Cloud visibility reduction: Selected

o Texture Direct:
§ Configuration Settings;
· Texture Resolution: 1024 for all settings
· Texter Compression Algorithm: DXT5 for all Clouds and 32bit for Wave Animation
· DirectX: DX11 for Sun Effects and Wave Animation DX10 for Water
· P3D Settings: HDR Textures Selected

o SkyForce: Only Cloud Textures are utilized
§ Weather Engine not engaged
· 3D Cloud Texture Resolution 1024x1024 with DXT5 Optimization
· Cirro-Type Cloud Texture Resolution 1024x1024 with DXT5 Optimization
· Moon Texture Resolution 1024x1024 

o UTLive:
§ Configuration Flight Sim;
· Airline Density: 60%
· General Avn: 0%
· Aircraft Contrail Length: 60 Sec
§ Configuration Traffic;
· Target Frame Rate: 30 FPS
· Max Altitude ground aircraft visible: 15,000ft
· Distance to spawn ground aircraft: 15nm
· Maximum aircraft to spawn: 150acft
 

With P3Dv4.2 I have done very many 4 to 16 hour flights PMDG 777/744 & A2A 172/182.

I have done several Flightbeam KIAD to KMSP to KDEN to KPHX to KSFO to KIAD w/NGX.

Even with quite high settings, Orbx global suite (all vector options too), ASP4 (7 layers out to 199 NM), UT Live (all at 85%), my FPS are locked at 20 FPS and stay about 19-20 FPS for days.

Even this moment I have a totally random flight in the PMDG 736 from EDFH to VIAR 3359nm about 7 hours. 2 1/2 into the flight and 19-20 FPS is steady even over some serious weather (37,000 foot TS) so far.

If there was an FPS leak in version 4.2 somebody would have noticed it long ago.

2 hours ago, nighthawk65 said:

Lighting Strips: CableMod WideBeam Hybrid LED 60CM RGB (UV with an additional 60CM Extension)

I would suspect these. Can you turn them off and try again?
Or maybe these: Storage 8: WD Black 1TB HDD (TV Series File Storage): What TV series did you store? Some may cause a drop in FPS...

With due respect but what on earth have these specs to do with FS (and FPS for that matter)?

 

I had something "similar" today. 

I`m currently flying from KIAD to LOWW with QW787 suddently without changing anything i had 6 FPS with locked and unlocked frame limiter.  

I was quite wondering because KIAD is P3D default ( plan to purchase the flightbeam one).  I played arround with my settings but nothing helped. 

Because the sky is completly full with clouds i thought maybee it helps to set the cloud coverage density back one step from full right. 

And boooomm 31 FPS locked ?!!  I changed nothing else. 

Interestingly a few minutes later when i completed my preflight checks .... again suddently the frames went down to 6 - 7 FPS.  Back to the cloud coverage density slider and put it back to FULL RIGHT. 

Same effect: from 6 to 28 - 31 FPS locked.  

I´m now in the Air since about  30 min and the frames are constantly at 27-30 FPS locked like i expect them to be. 

Prety strange. 

I use AS16 and ASCA with ENVTEX Textures, ENVSHADE and REX Soft Clouds.  Maybee it has soemthing to do with this combination?

 

brgds

Edited June 23, 20187 yr by 331BK

2 minutes ago, Egbert Drenth said:

I would suspect these. Can you turn them off and try again?
Or maybe these: Storage 8: WD Black 1TB HDD (TV Series File Storage): What TV series did you store? Some may cause a drop in FPS...

With due respect but what on earth have these specs to do with FS (and FPS for that matter)?

 

Currently, they are for storage only for deployments to Afghanistan.  While yes they have nothing to do with flight sim or FPS I was merely trying to ensure all information is available in case there is a problem I haven't even thought off.  Alot of info may not be needed, but better to say how it is vs have to potentially provide it later....

7 minutes ago, 331BK said:

I had something "similar" today. 

I`m currently flying from KIAD to LOWW with QW787 suddently without changing anything i had 6 FPS with locked and unlocked frame limiter.  

I was quite wondering because KIAD is P3D default ( plan to purchase the flightbeam one).  I played arround with my settings but nothing helped. 

Because the sky is completly full with clouds i thought maybee it helps to set the cloud coverage density back one step from full right. 

And boooomm 31 FPS locked ?!!  I changed nothing else. 

Interestingly a few minutes later when i completed my preflight checks .... again suddently the frames went down to 6 - 7 FPS.  Back to the cloud coverage density slider and put it back to FULL RIGHT. 

Same effect: from 6 to 28 - 31 FPS locked.  

I´m now in the Air since about  30 min and the frames are constantly at 27-30 FPS locked like i expect them to be. 

Prety strange. 

I use AS16 and ASCA with ENVTEX Textures, ENVSHADE and REX Soft Clouds.  Maybee it has soemthing to do with this combination?

 

brgds

I am starting to wonder about the mix of texture related software myself...

to complete my information: 

7900X @ 4,9 Ghz HT off

Nvidia Titan XP

32 Inch 4K G-Sync Monitor

P3D is running on a Samsung 960 Pro 1 TB M2 SSD 

32 GB DDR4  3200 Mhz  CL14

2 minutes ago, 331BK said:

to complete my information: 

7900X @ 4,9 Ghz HT off

Nvidia Titan XP

32 Inch 4K G-Sync Monitor

P3D is running on a Samsung 960 Pro 1 TB M2 SSD 

32 GB DDR4  3200 Mhz  CL14

Have you tested with and without HT??  I have not been able to find alot of material to read for the I7-8700k to say whether or not P3D V4.2 with W10 is better or worse with or without HT enabled.

that`s often system specific. 

For my 10 Core system i get less stutters without HT

Just now, 331BK said:

that`s often system specific. 

For my 10 Core system i get less stutters without HT

I may have to give that a try and see what happens.

There's no such thing as an 'FPS leak'! FPS aren't stored anywhere or used to improve anything, and is solely presented to you, as parameter of how your computer is performing a given graphic task. If you're experiencing degrading performance over time, that could be due to a number of reasons. 

But there's no such thing as an 'FPS leak' in the technical sense.

Exactly so.....what the heck is an "FPS Leak"? I don't know what the problem is but that's not it..........Doug

7 hours ago, Anders Bermann said:

There's no such thing as an 'FPS leak'! FPS aren't stored anywhere or used to improve anything, and is solely presented to you, as parameter of how your computer is performing a given graphic task. If you're experiencing degrading performance over time, that could be due to a number of reasons. 

But there's no such thing as an 'FPS leak' in the technical sense.

OK so bad word choice.  It was the only way I thought I could describe it...  Basically, I am trying to see if I can figure out or find the culprit to losing FPS over time.  For example, I have tested a variety of aircraft and airports, overnight all day etc.  They all lose FPS which can range from single to double digits and through multiple views.  I don't know if it has something to deal with textures loading and unloading or weather engines etc.  I expect to lose FPS during flight and based on the complexity of aircraft, scenery and environmental conditions.  I would just think that as conditions improve, the FPS returns back to normal.  I have looked into locking FPS either in the sim directly or in NI.  However, I notice that the sim becomes very unstable even with FPS over 20.  I don't know if I am missing a setting somewhere or if it might have a conflict with my monitor.  I am looking for advice and places to look, things to try etc...  I haven't found a whole lot of information on fast monitors with G-Sync.  Speaking with certain people within the community, I have been told that with my CPU+GPU+monitor combined, I should not require a need to either limit the FPS or enable V-Sync with Tripple Buffering.  

Have you tried to lock FPS at 20?

You may want to turn that NVidia Shader Cache ON as well.

 

I will give the second idea a try, and I am planning on spending tomorrow with different values of locked FPS.  I am reading through the P3D guide on AVSIm pg.146, trying to understand the table in the page a little better in terms of monitor hz, v-sync and triple buffer etc.