...So then, given that there is always some amount of time awarded to assembling the scene, we may find that reducing FFTF has no effect.

11 minutes ago, SteveW said:

...So then, given that there is always some amount of time awarded to assembling the scene, we may find that reducing FFTF has no effect.

Steve, I am no expert on the subject, but there appears to be credible evidence that if you want to do anything with FFTF, either via cfg settings or FFTF Dynamic, you are better off setting fps to 120 than to Unlimited in P3D.

P3D internally appears to ignore FFTF settings if set to Unlimited..

(or at least follow a different code path..)

 

Edited May 18, 20206 yr by Bert Pieke

5 minutes ago, Bert Pieke said:

Steve, I am no expert on the subject, but there appears to be credible evidence that if you want to to do anything with FFTF, either via cfg settings or FFTF Dynamic, you are better off setting fps to 120 than to Unlimited in P3D.

P3D internally appears to ignore FFTF settings if set to Unlimited..

 

Bert, I can attest you do not need to have frames limited w/in sim for this to work--I can see the dynamic FFTF changing in realtime w/ unlimited and vsync to 30Hz screen, UNLESS it's just showing what it COULD deliver to P3D in the FFTF Dynamic GUI, which I suppose is theoretically possible, and perhaps that is what you're saying that it is ignored in-sim.

Edited May 18, 20206 yr by Noel

15 minutes ago, Noel said:

Bert, I can attest you do not need to have frames limited w/in sim for this to work--I can see the dynamic FFTF changing in realtime w/ unlimited and vsync to 30Hz screen, UNLESS it's just showing what it COULD deliver to P3D in the FFTF Dynamic GUI, which I suppose is theoretically possible, and perhaps that is what you're saying that it is ignored in-sim.

That is indeed what I have been led to believe.. I have no proof, however..

24 minutes ago, Bert Pieke said:

Steve, I am no expert on the subject, but there appears to be credible evidence that if you want to do anything with FFTF, either via cfg settings or FFTF Dynamic, you are better off setting fps to 120 than to Unlimited in P3D.

P3D internally appears to ignore FFTF settings if set to Unlimited..

(or at least follow a different code path..)

 

I just checked that

[DISPLAY] UPPER_FRAMERATE_LIMIT=0, VSYNC=0

[MAIN] FIBER_FRAME_TIME_FRACTION=0.5

vs

[MAIN] FIBER_FRAME_TIME_FRACTION=0.1

0.5 loaded the scene much faster than 0.1

 

5 minutes ago, SteveW said:

I just checked that

[DISPLAY] UPPER_FRAMERATE_LIMIT=0, VSYNC=0

[MAIN] FIBER_FRAME_TIME_FRACTION=0.5

vs

[MAIN] FIBER_FRAME_TIME_FRACTION=0.1

0.5 loaded the scene much faster than 0.1

 

OK, well that seems to refute that... maybe I can go back to Unlimited after all.. 🙂

Thanks!

Edited May 18, 20206 yr by Bert Pieke

The scenarios loaded a few seconds faster at 0.1 since they load less scenery. The scene built up quicker after loading with 0.5 during the first minute of the sim (un-paused). The scenario loaded in about the same as Unlimited with 119 locked on the slider, but this increased the time the scene built over the first minute of the sim.

Differences in how this appears to work between users is basically down to what I said earlier in that if the scenery demands are high you may not see any difference when changing FFTF.

..also using Hyperthreading - another bone of contention:

[JOBSCHEDULER]
AffinityMask=349525 (01,01,01,01,01,01,01,01,01,01)

That's just one task per core - HT enabled loads the scenario faster and decreases the time the scene builds when after the sim starts. And so HT enabled used correctly is a helper just like optimising FFTF but HT increases performance all the time.

56 minutes ago, Bert Pieke said:

you are better off setting fps to 120 than to Unlimited in P3D.

 

The moment you set any frame rate value but Unlimited in P3D you bumped into look-ahead buffer problem, so what was the point of doing so be it 30 or 120?

Thanks.

Edited May 18, 20206 yr by Dirk98

3 minutes ago, Dirk98 said:

The moment you set any frame rate value but Unlimited in P3D you bumped into look-ahead buffer problem, so what was the point of doing so be it 30 or 120?

Thanks.

Could you explain?  What is a look-ahead buffer problem?

3 minutes ago, Bert Pieke said:

Could you explain?  What is a look-ahead buffer problem?

SteveW:

Quote

The Display Settings fps lock slider is not a limiter. It continues to create frames as soon as each frame is completed, until the look-ahead buffer is filled and works like Unlimited until then. Mostly the buffer will not be complete and we see higher use of the CPU than we do with the external limiter which is a limit.

 

Edited May 18, 20206 yr by Dirk98

I basically achieved progress with fftf....I am running in FPS mode, it seem smoother. Unfortunately I am unable to make big progress on just one APT (CYYZ), that one has been heavy from my FSX days....Taxiing north to 05/23 drops down to almost halt, making left on H towards 05 makes it nice and smooth and better than before. I tried setting refreshing rate from 30 all the way to 144 and 60 works the best (or I think)...

Perhaps some of you should share NCP settings it might help few people including me. I still can't figure what takes over SIM (or does it). Saying that I get "application controlled but with other setting I might use help.

Now I moved slider to unlimited+Vsync+TB in the sim...not sure what I left in NCP...

3 hours ago, panner said:

Hi Achilles,

I am still waiting for SimMarket to have FFTF Dynamic P3Dv5. Any idea when it will be available? I have used your v4 tool for some time and really want the v5 version.

Or can you give me the 20% discount and I order from FSPS?

Peter

Why is no one getting an answer to the SimMarket question? Have they been boycotted or what?🤔

Edited May 18, 20206 yr by Caveney737

I’m running G-Sync so my frames just match my monitor refresh rate, which works absolute wonders in P3DV5 with the new setting. 

I am running a 4k monitor at 30Hz, VSYNC ON, TB ON, and unlimited frames. In P3DV5 i get a smooth sim in all situations so far encountered, including AS EGLL in a complex aircraft addon, with Orbx base and LC EU. However, I have used FFTF Dynamic in the past in V4.5 to good effect with the same settings, All I need now is SimMarket to have the new version and I will try it out.