Well I did try it on my Prepar3D.cfg file and I see a much even through out use of my CPU core. now only am I able to get more FPS but I can also have more "candy" enable.  Before my Core 1 was at an 100%, It's not longer the case.

I also suffered from bad stuttering when I moved over to P3Dv2 - turned out it was my overclocked cpu.

 

I was running my 4670K @ 4.6Ghz, it was stress test stable and temps were OK.

 

I lowered the overclock to 4.4Ghz (didn't change ANYTHING else), restated the system and fired up P3D - no more stutters!

 

I think what was happening is that my overclock was so high (for my particular chip) that it was causing CPU errors and the processor was constantly error correcting, thus causing stutters in the sim.

 

I noticed your running a 4.7Ghz overclock, dial it back a little and see if it helps. Maybe down to 4.2 - 4.4Ghz, also make sure your ram is using an XMP profile and has plenty voltage (usually 1.65v)

Also make sure you are deleting your shaders folder - helps a lot especially after installing graphical programs like rex - if you dont know how to do this ask - in P3D you will be doing this a lot

I also suffered from bad stuttering when I moved over to P3Dv2 - turned out it was my overclocked cpu.

 

I was running my 4670K @ 4.6Ghz, it was stress test stable and temps were OK.

 

I lowered the overclock to 4.4Ghz (didn't change ANYTHING else), restated the system and fired up P3D - no more stutters!

 

I think what was happening is that my overclock was so high (for my particular chip) that it was causing CPU errors and the processor was constantly error correcting, thus causing stutters in the sim.

 

I noticed your running a 4.7Ghz overclock, dial it back a little and see if it helps. Maybe down to 4.2 - 4.4Ghz, also make sure your ram is using an XMP profile and has plenty voltage (usually 1.65v)

 

I had read that today and wondered about dropping my overclock down. My PC is 100% stable with FSX so I guess I never thought of that. I am just re installing P3D alongside FSX. At least when I am done tweaking I can go for some smooth flying lol

Also make sure you are deleting your shaders folder - helps a lot especially after installing graphical programs like rex - if you dont know how to do this ask - in P3D you will be doing this a lot

 

Thanks Richard,

 

I assume you are talking about c:user\appdata\local\Lockheed Martin\Prepare3D v2\Shaders

Thanks Richard,

 

I assume you are talking about c:user\appdata\local\Lockheed Martin\Prepare3D v2\Shaders

 

Exactly you will know it well lol

I'm sure you can add a line to the config that automatically rebuilds the shaders if you make changes to the config file. Details can be found in the learning centre.

Just a quick question,

 

Is it still wise to use Nvidia inspector with P3D, there are lots of posts relating to older versions of P3D but not much for 2.4 and now 2.5 (which I am testing)

 

Richard

Just a quick question,

 

Is it still wise to use Nvidia inspector with P3D, there are lots of posts relating to older versions of P3D but not much for 2.4 and now 2.5 (which I am testing)

 

Richard

Wise? Some of it works and some of it doesn't. If you use the parts that do, it is wise - if you use the parts that do not - it is unwise.

 

I KNOW you've heard it before but every system and method of setting up is different. I happen to run SLI using NVI, it works for me. Others will tell you NVI doesn't work and SLI doesn't work.

 

Try it and see.

 

Vic

Well I thought I would post an update,

 

I have had a while now to try out P3D with some 3rd party addons:

 

Rex 4 textures

FTX Global

A2A 180 Cherokee

Aerosoft Airbus A318/319/320 & 321 

Majestic Dash 8 Q400

 

With my system I can push the sliders pretty much all too the right and still get good FPS but the one thing that did come back is the microstutters. I have adjusted everything I could within P3D and Nvidia inspector. I even disabled all the inspector settings and just used what was coming out of P3D. I tried the basic config tweaks suggested by Lockheed Martin all to no avail. The microstutters are still there. Nothing seems to make a difference

 

They are not horrific but there none the less, I am convinced it is something to do with P3D not running in a true full screen like FSX does. If this were to happen then the 1/2 vsync tweak that works so well in FSX could be applied. 

 

I was watching my VAS usage closely and on a 14 hour test flight with the A319 it never went above 2.5 gig. I have also been monitoring what is going on with my GTX780 using GPU-z. No matter how far I push all the sliders to the right and select all the graphic intensive options the GPU usage only peaks around 40% and around 1.4 gig of the 3 gig that my card has is utilized.

 

I thought P3D was supposed to offload more of the work to the graphics card, Am I missing something here? Is there a setting for this?

 

I do see the potential for P3D but I still go back to FSX running DX10 and can fly the PMDG 777 in heavy weather over large cities with Ultimate traffic 2 at 80% and still get a very smooth experience.

 

If the microstutter issues is due to the Pseudo full screen thing then I hope LM fix this as soon as possible. I would love to try the 777 in P3D but am nervous about spending close to $100 and getting worse performance than I do in FSX especially as the Airbus series seems to be way less resource hungry than the 777 is in FSX.

 

Still hoping that the magic answer will present itself though

 

Richard

No matter how far I push all the sliders to the right and select all the graphic intensive options the GPU usage only peaks around 40% and around 1.4 gig of the 3 gig that my card has is utilized.

That doesn't seem right Richard. I currently have two 970's in SLI and they both get close to 100% in heavy weather with a complex a/c. When I had my 780's, I saw the same. 40% in heavy weather just doesn't seem correct to me.

 

EDIT: this was in 2.4 - I have not monitored 2.5 yet.

 

Vic

I was running 2.5 well until I added FTX Global and then the stutters came back. So I deleted and will pass on Global.

What I did wifh my system was to :

 

1. Install p3d 2.5 and test it before installing any addons. Make sure you are happy before going to next step.

 

2. Install your most wanted addon.... one only..... and test again to make sure you are happy.

 

3. Install next wanted addons one at a time and test each addon as you install them. See if there is one addon that is causing your issues.

 

 

Some things to consider.

 

I have seen recommendations not to have antivirus active while running flight sim. Other recommendations are if antivirus is running to go into its settings and tell it not to scan the p3d folders....exclude prepar3d and its subfolders so the antivirus does not scan your files as you are playing and using them.

 

Check resources used by your antivirus....the one I was using for tthe last year was using more memory than any other application..... have switched to a less memory I tensive antivirus.

 

I had windows 8.1 which slowed down my computer greatly... I went back to 8.0 via a long process requiring refreshing my pc and 12 hours reinstalling all my software. That helped in my case.

 

Make sure you install flight sim and its addons as admin and run them as admin.

 

Install in a folder outside program files folder .

 

If you sill have problems look at windows log files to seev if any issues are being logged.

 

Also look at logs for your addons. Last year p3d went to 1 frame a second on my system and checking my addon logs I discovered that 2 addons I was using that were not p3d compliant at that time were causing simconnect issues which in turn effected a 3rd addon.

 

Try not having any other windows open like Chrome, internet explorer, foldder explorer etc to free up resources.... I have heard it is not good to have too many windows open at any one time .....especially when flyng something like the pmdg 777.

 

I puchased the 777 for p3d within hours of it coming out and because my system is low spec I was sure the 777 would be extremely slow on my machine. I found the 777 worked well in p3d.... a lot smoother than I had been expecting..... and I am still adjusting my sliders to get the balance I want between great visuals and good frame rate in the 777 cockpit. The 777 in p3d performs better than the pmdg 737ngx performed in fsx.

Get yourself a second PC.  Doesn't have to be a top of the range machine, just enough to offload all your browsing, email, messenger and other favoured flightsim apps - ASN, PFPX, FSC etc.

 

Set up a simple home network and use your Flight Sim PC solely for flying.  It is so easy to do and makes diagnosing those annoyances so much easier.

 

Give P3D all the resources it can consume.  I won't say it totally eliminates them but it's pretty darn close.

Thanks Guys,

 

I did install P3D and get things running the best I could before installing any addons. Next was the Airbus 318/319. Straight away the microstutters were there. After much tweaking I decided to install the other stuff anyway. I know if I uninstall the Airbus I will still have the issues with anything other than bog standard aircraft.

 

This is a custom built PC just for my hobby, You will see from my profile it is no slouch either. No Antivirus is running. ASN, EFB & PFPX are all running on a networked iMac running windows 7 (Bootcamp)

 

I guess that although P3D has had a fair amount of development done ultimately it is still processor bound rather than GPU. 

Richard,

 

I'm also running W7 on an iMac, but I'm using Parallels 9.  Although not the quickest, it will run EFB, PFX and ASN just fine.  I do close PFPX after exporting FP's and saving a text FP which I keep open.  Chrome can get a bit slow on OSX if I have more than six tabs open.  It is though, a 2009 iMac.

 

The FS Rig has a GTX 970 but only a [email protected], 8GB RAM.  It performs very well.

 

Happy simming.

 

ps. try the 344.16 drivers.