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alike

Limit fps: Yes or no?

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Simple question: Should I limit my fps to 35 (at this setting, my framerate never dips below the set framerate, and the simulator feels smooth as butter), or should I have it set to unlimited to allow jumps in framerate as big as 3 digits?

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There is no best answer for everyone because it depends on the system and configuration.  The big jumps in frame rate do nothing for improved animation, they just give your ego a boost.  I'd recommend you select whatever provides you the smoothest and most consistent animation with the least number of long frames.

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This depends on the addon.  For VR on some planes unlimited helps and sometimes I have to lock in-p3d FPS to have high async fps.  It all depends on all the addons combined together.

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I think locked is smoother. In my case I lock at 36 and it tends to stay there most of the time. Unlimited is fun to see the numbers racing, but they jump up and down a lot which bothers me.

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Yeah this one is hard to pin down to just one way or the other for all.  I've tried pretty much every combo of settings out there and my system seems to always prefer to be set to unlimited to get the fewest stutters and pauses.  Obviously this is not the case for everyone as you can see from just the first few replies here.  :wink:

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I see best smoothness and performance when FPS are unlimited, Vsync is on, tripple buffer is on and the screen runs at 30 Hz. Looking at the Fraps counter, I have no erratic movement a t all in fps, it stays dead on 30 Hz all the time.

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My system is very similar - 6700K overclocked and 980 Ti. As you know, it's not about FPS but smoothness and I have always found that setting Unlimited and not checking Triple Buffering or V-Sync has always offered the best in terms of smoothness. There is still a very small microstuttering that I have never been able to eliminate but it is so slight that I suspect to many, it would be totally unnoticeable. I am OCD. Only noticeable by looking out right or left at very low altitude and then really trying to notice it.

 

Not using nVidia Inspector at all. Absolutely no CFG tweaks either.

 

Unfortunately my monitor seems to be able to run only at 59Hz. 2560x1440 resolution.

 

I never fly with the FPS counter showing, unless trying to find the best settings.

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P3D at Unlimited

VSync on

Monitors at 24 Hertz

DXTory limiter at 24

 

I use the limiter as otherwise my framerate goes : 24/48/72/96/120 - up and down between those numbers which causes small jittering

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I do get some strange "warping" when I hit over 100 fps... rotten problem to have, I know :wink:

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Unlimited in, set to 30 via NI

That has been not recommended by LM because there are things happening inside P3D when frame rate is locked, if you lock externally then you do not get the best performance. This is an old adage left over from prior versions, please do not propagate.

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That has been not recommended by LM because there are things happening inside P3D when frame rate is locked, if you lock externally then you do not get the best performance. This is an old adage left over from prior versions, please do not propagate.

See my post 8

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YES and NO

 

Rural area where framerate isn't a problem - locked

 

Urban area where framerates are a problem - unlocked

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I see best smoothness and performance when FPS are unlimited, Vsync is on, tripple buffer is on and the screen runs at 30 Hz. Looking at the Fraps counter, I have no erratic movement a t all in fps, it stays dead on 30 Hz all the time.

 

 

+1@25HZ but here. Very very smooth

 

Michael Moe

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Always locked to 30, before P3D. Now run unlocked, and get smooth performance, and higher FPS. 

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Always locked to 30, before P3D. Now run unlocked, and get smooth performance, and higher FPS.

 

With lots of AG my sim is smoother with Unlocked, but at a very detailed airport Locked is better ( = Unlimited + DXTory limiter )

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That has been not recommended by LM because there are things happening inside P3D when frame rate is locked, if you lock externally then you do not get the best performance. This is an old adage left over from prior versions, please do not propagate.

I have seen a few people, SteveW I believe being one and others who have done tests that have said running like I do produces less jittery and stutters and gives pretty good consistent smoothness without the frames jumping all over the place by running unlimited.

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For my system;

unlimited fps: stutters, some blurries, high fps.

limited fps; almost no stutter, almost no blurries, but relative low fps. ı have chosen limited fps.

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On 9/29/2016 at 9:03 PM, alike said:

Simple question: Should I limit my fps to 35 (at this setting, my framerate never dips below the set framerate, and the simulator feels smooth as butter), or should I have it set to unlimited to allow jumps in framerate as big as 3 digits?

Without wishing to be obtuse, what possible benefit would you achieve by uncapping the frame rate?

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18 minutes ago, MarkDH said:

Without wishing to be obtuse, what possible benefit would you achieve by uncapping the frame rate?

On my system, locking the frame rate appears to lower the FPS while unlocking allows a higher overall FPS.  I remember reading from the old FSX days that an unlimited rate can cause issues with graphics as the system allocates more resources to getting the higher FPS and less to other elements within the sim.  That doesn't seem to be true any more?

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On 9/30/2016 at 2:23 PM, pmanhart said:

YES and NO

 

Rural area where framerate isn't a problem - locked

 

Urban area where framerates are a problem - unlocked

This is what I did in V3.  I'd try to keep it locked as often as possible because unlimited even with vsync caused some pretty bad blurries.  I'd even go as far as running unlimited, taking off, locking them, and once on final and the FPS started dropping I'd change it back to unlimited.  It was a major pain but I still was able to keep sharp texture and keep it running smooth.

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On 9/30/2016 at 2:23 PM, pmanhart said:

YES and NO

 

Rural area where framerate isn't a problem - locked

 

Urban area where framerates are a problem - unlocked

This is what I did in V3.  I'd try to keep it locked as often as possible because unlimited even with vsync caused some pretty bad blurries.  I'd even go as far as running unlimited, taking off, locking them, and once on final and the FPS started dropping I'd change it back to unlimited.  It was a major pain but I still was able to keep sharp texture and keep it running smooth.

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In V3 (thread here), I've found unlocking frames leads to microstutters and that locking the frames was key to smoothness. I suspect the same for V4.

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On 9/29/2016 at 10:00 PM, allergiecheck said:

I see best smoothness and performance when FPS are unlimited, Vsync is on, tripple buffer is on and the screen runs at 30 Hz. Looking at the Fraps counter, I have no erratic movement a t all in fps, it stays dead on 30 Hz all the time.

Same here running a native 30Hz monitor very smooth but so was/is P3Dv3 if I don't push the sliders and eye candy too high. The key for me was moving to a native 30Hz monitor that happens to be a 4K TV.

Joe

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2 minutes ago, AviatorMoser said:

In V3 (thread here), I've found unlocking frames leads to microstutters and that locking the frames was key to smoothness. I suspect the same for V4.

Your suspicions are correct. I've run locked 30 in both V3 and now V4.

Works perfect.

 

Cheers,

Mark

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