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Can't get rid of spikes !

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  • Author

Run FSX in windowed. Open GPU-Z on the side, with Sensors. Run your scenario where spikes are happening, observe your CPU usage. How is it?

 

Well i tested in two airports LFBO and Schipol

 

lfbo:

memory usage around 420, 450 when turning camera fastly

gpu temp 46

gpu load 50% to 70% and 99% when i turn camera fastly. (spikes appear at 98% - 99%)

 

Schipol gate b12:

memory usage 520-550mb

gpu temp 48

gpu load 90-99%; my game is full of spikes !!

 

 

gpu core clock : 1033 memory clock 1502 at both airports

If you are running FSx in windows mode, make sure you either 'hide' the taskbar or move it to another monitor if you have one. If the FSX window touches the taskbar, FPS goes in the tank.

Jay

hi,

 

this may sound weird but i had that in bf3 and im was constantly banging flat head on a wall! the way i fixed this was a simple run as administrative mode, try it it could be fsx just needs that.

 

 

many thanks

I7 10700K 16GB 3600MHZ RTX3080FE

Talek, unless I've missed something, I haven't seen anywhere in this thread you pposting a) your system specs or B) your FSX slider settings, or HAVE I missed something? To be frank, this thread is completely redundant without knowing this information. You could have th fastest machine in the FSX community, but if you're running with the wrong FSX settings you'll still have problems. I respectfullly suggest that you should be looking at this area before considering other 'outside' influences such as tweaks and hardware... could you reply with these settings please... BTW: I get spikes too in certain scenarios, panning the camera around the aircraft while parked at Schipol airport (Aerosoft?) is VERY likely to give you what you describe anyway! But as I say, it all depends on your FSX settings, so let us know what they are and your PC specs... as Word Not Allowed has said, it's all about a balanced system.

Howard
MSI Mag B650 Tomahawk MB, Ryzen7-7800X3D CPU@5ghz, Arctic AIO II 360 cooler, Nvidia RTX4090 GPU, 32gb DDR5@6000Mhz, SSD/2Tb+SSD/500Gb+OS, Corsair 1000W PSU, LG Ultragear 48"4K, MFG Crosswinds, TQ6 Throttle, Fulcrum One Yoke
My FlightSim YouTube Channel: https://www.youtube.com/@skyhigh776

I recommend that you relieve your GPU by setting in the Nvidia Inspector:

 

1) AntiAliasing to 8xS (if you have it on a higher setting) and

2) set Transparency to "Multisampling: Enabled" and "Off/Multisampling" (instead of 2x SGSS)

 

In your situation you have to trade off some image quality in order to lift some burden from the GPU so that you get rid of the spikes. Unfortunately every system is different so you have to adapt any performance guide to your system's capabilities and your personal preferences.

 

Word Not Allowed's guide is excellent. I use it too, but with 2xSGSS I also get spikes and low frame rates with overcast weather. My system hits a wall there so I had to trade off some IQ (not much anyway) to have excellent framerates and no spikes in any situation.

Another suggestion will be to try and find the balance for your GPU loading by using:

 

Usepools=1

Rejectthreshold=98304

 

Using this setting pools all values below that value before sending to the video card. Anything above it gets sent directly. This seems to work for most folk.

 

If you still get spikes try increasing the rejectthreshold setting;

 

96kb=98304 (anything less os equivalent to usepools=0)

128kb = 131072

256kb = 262144

512kb = 524288

 

Work through the numbers till you find the right balance. Can actually be any number, so keep trying until you find a setting that doesn't display any spikes.

 

Danny Hicks

  • Author

Talek, unless I've missed something, I haven't seen anywhere in this thread you pposting a) your system specs or B) your FSX slider settings, or HAVE I missed something? To be frank, this thread is completely redundant without knowing this information. You could have th fastest machine in the FSX community, but if you're running with the wrong FSX settings you'll still have problems. I respectfullly suggest that you should be looking at this area before considering other 'outside' influences such as tweaks and hardware... could you reply with these settings please... BTW: I get spikes too in certain scenarios, panning the camera around the aircraft while parked at Schipol airport (Aerosoft?) is VERY likely to give you what you describe anyway! But as I say, it all depends on your FSX settings, so let us know what they are and your PC specs... as Word Not Allowed has said, it's all about a balanced system.

 

My specs : i5 3570k 3,4ghz-3,8ghz (it was overclock to 4.2 but underclocked for reinstall OS), gtx 660 msi twin frozr, 2*4gb 1600mhz ram, 128GB samsung ssd for OS and 1to hdd for fsx and all other stuff.

FSX slider settings, my autogen are set at NORMAL, water HIGH 2X, the other sliders doesn't change my fps even if i set them high or mid, i use default slides ...

 

I recommend that you relieve your GPU by setting in the Nvidia Inspector:

 

1) AntiAliasing to 8xS (if you have it on a higher setting) and

2) set Transparency to "Multisampling: Enabled" and "Off/Multisampling" (instead of 2x SGSS)

 

In your situation you have to trade off some image quality in order to lift some burden from the GPU so that you get rid of the spikes. Unfortunately every system is different so you have to adapt any performance guide to your system's capabilities and your personal preferences.

 

Word Not Allowed's guide is excellent. I use it too, but with 2xSGSS I also get spikes and low frame rates with overcast weather. My system hits a wall there so I had to trade off some IQ (not much anyway) to have excellent framerates and no spikes in any situation.

 

tried, doesn't work. I tried many nvidia inspector settings, they sometimes reduces spikes a little but they are still there so i switched back Word Not Allowed's settings.

 

Another suggestion will be to try and find the balance for your GPU loading by using:

 

Usepools=1

Rejectthreshold=98304

 

Using this setting pools all values below that value before sending to the video card. Anything above it gets sent directly. This seems to work for most folk.

 

If you still get spikes try increasing the rejectthreshold setting;

 

96kb=98304 (anything less os equivalent to usepools=0)

128kb = 131072

256kb = 262144

512kb = 524288

 

Work through the numbers till you find the right balance. Can actually be any number, so keep trying until you find a setting that doesn't display any spikes.

 

well i tested

Usepools=1

Rejectthreshold=98304

I have very nice smoothness and FPS (30) in the NGX cockpit, but sometimes massive stuttering outside when i turn camera :/ (no spikes)

 

hi,

 

this may sound weird but i had that in bf3 and im was constantly banging flat head on a wall! the way i fixed this was a simple run as administrative mode, try it it could be fsx just needs that.

 

 

many thanks

 

tried, doesn't work.

 

----

and thanks for your help

  • Author

Usepools=1

Rejectthreshold=98304

 

i set water to mid 2x with this, massive stutters gone, my game is quiet smooth and i think i'll reduce some micro stutters by defragmenting my hdd

even at schipol i have 25fps in the ngx cockpit i used to have 15 with poolsize=0 and water high 2x.

i am going to make some ngx flights this week :P

but this is not done because poolsize=0 worked well before, (with my W7 home edition,) I am sure there is something wrong in my computer ! i am going to reinstall home edition and continu investigating on this next week because i am crazy

but this is not done because poolsize=0 worked well before, (with my W7 home edition,) I am sure there is something wrong in my computer !

 

Hey Talek, just because something works OK with one setup doesn't mean it will work the same with another :wink:

Howard
MSI Mag B650 Tomahawk MB, Ryzen7-7800X3D CPU@5ghz, Arctic AIO II 360 cooler, Nvidia RTX4090 GPU, 32gb DDR5@6000Mhz, SSD/2Tb+SSD/500Gb+OS, Corsair 1000W PSU, LG Ultragear 48"4K, MFG Crosswinds, TQ6 Throttle, Fulcrum One Yoke
My FlightSim YouTube Channel: https://www.youtube.com/@skyhigh776

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