Hiccups

[Vantskruv]

I am still experiencing hiccups, which makes it unplayable. Though the hiccups is not all the time, but they are very destructive when you do some critical maneouvers, i.e. landing. I had a hiccup of 2 seconds right after touch down. Grrrr!

Is this caused by low VRAM or something else? As I am watching I have about 300mb VRAM, which may be a little low buffer, what buffer do you recommend to have? The overall FPS is nice, around 30 FPS.

 

Edit: Running RWC and SMP 3.1.1 with a Nvidia GTX 780Ti 3.5Gb VRAM

 

Edited April 16, 2016 by Vantskruv

[Ben Russell]

Instead of looking at the VRAM left as a whole number; eg "300 meg", look at it as a percentage of your video cards resources.

3.5 x 1024 = 3584

300 / 3584 * 100 = 8.4%

 

Do you really think your video card enjoys being thrashed with only 8.4% breathing room to allow for dynamic content?

Run your OS to 93% of its ram usage with no swap and see how fun it gets.

[Avdheide]

Have the same problem.

X-plane freezes up. All is locked even trying to acces menus.
Have not been able to find the rights settings in x-plane or skymaxx-pro.

My setup is I7 970 on 4.2Mhz and 6 cores hyperthreaded to 12. load about 20% also during lockups no 100% load visible.
12Gb ram with 6.5Gb in use,
GTX 980 Ti with 6GB Vram and max 5.47 min 4.78 and average 5.17 in use. These are GPU-Z figures
According SkyMaxx pro menu 541 MB free Vram
Every time I try  to make more up Vram availible it gets  filled to the limet.

Have no clue what is going on.

Will try to make more % of vram availible see if that works

 

[Vantskruv]

No of course 300mb feels quite a little as a swayroom in this application. But calculating percent does not matter in this case, as there are cards with more or less total VRAM, and VRAM does not behave like a PSU or car engine. What I want to know here if anyone has, either assumption, or knowledge, of how much swayroom of VRAM SMP prefers/requires. Also this value would be affected by a span between min and max settings.

[Avdheide]

Here are my settings

 

Edited April 16, 2016 by Avdheide

[Ben Russell]

3 minutes ago, Vantskruv said:

No of course 300mb feels quite a little as a swayroom in this application. But calculating percent does not matter in this case, as there are cards with more or less total VRAM, and VRAM does not behave like a PSU or car engine. What I want to know here if anyone has, either assumption, or knowledge, of how much swayroom of VRAM SMP prefers/requires. Also this value would be affected by a span between min and max settings.

The simplest way to find this is to start backing off your settings until you're satisfied by whatever compromise you have to make.

You're at ~8%.

Try 20%

..30

50...

Maybe back down to 40...

 

The trade offs will vary by the options you've selected for yourself... It's up to you where you feel you can compromise.

[Havner]

Are you experiencing those hiccups only with SMP? Because I had them regardless. In general in X-Plane. Like 2-3 sec pauses from time to time.

The solution for me (found on YouTube) was to switch the GeForce driver to single-thread for X-Plane only in NVIDIA control settings.

Edited April 16, 2016 by Havner

[Vantskruv]

No only SMP (edit: this make take some more research, as the problem may be more prominent with SMP), and the less of VRAM is a high probability. I.e. when SMP updating the clouds, I guess more VRAM then normally is used, and then you bottleneck.

Avheide, I'm confused even if you have so much VRAM totally, you are still probably bottlenecking. I've the HD Mesh Scenery v3 and World2Xplane installed and some airport sceneries, but I guess these extra goodies takes their place in RAM. But maybe you are using some extreme HD sceneries or flying at memory demanding areas? Anyway, just taking from the air now (cannot access my PC for the moment), I think we use almost the same settings except for:

X-Plane----

* Resolution, I'm running 2560x1600 (this requires more VRAM, try reducing the resolution)

* Antialiasing, I'm running only FXAA, but I do not think this affects VRAM.

* Cloud detail, I think I'm running 50-70 percent here.

Skymaxx---

* Actually, I'm running the default settings of the Skymaxx Pro, and have increased the cloud area coverage, and therefor I've greater settings than you, with a lesser of GPU.

Edited April 16, 2016 by Vantskruv

[Ben Russell]

Please keep this in mind too;

300 mb of VRAM in one huge chunk is much more useful than 300 x 1 megabyte chunks.

 

[Avdheide]

Vantskruv,

Just did the supposed Nvidia setting. This seems to be the solution. I'm flying at the moment with more FPS from 19 to 25 according Fraps.

My settup includes simheaven osm europe, HD mesh. I fly in the netherlands at Lelystad EHLE end fly on EHAM as wel.
Quit a filled in scenery.

Here are my Nvidia settings.

 

 

Edited April 16, 2016 by Avdheide

[Avdheide]

Vantskruv,

Just landed from a flight from EHLE to EHAM passing amsterdam through a thunderstorm on the approach on runway 22.
With the Nvidia setting according Havner.
1 or 2 lockups when loading of thunderstorm was going on. Only a splt second.
For the rest of the flight bumpy of turbulence and for the rest stutter free.

see the snapshots taken.

 

Edited April 16, 2016 by Avdheide