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roarkr

Anyone read the tuning tips from LM

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Hi

I just pasted in the LM tuning proposal into prepar3d.cfg and had a much better simulstion experience.

 

I now have fluid 60FPS in external view and 45-50 FPS from the VC of a well knowned B737

 

The tips is from the Menu Bar .

 

 

 

 

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Pasted? From the help menu?

 

Thanks

 

 

 

Hi

 

See the doc under Menu/Help

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well...With that computer setup I think it's not a miracle you are smooth with p3d? Good for You :)

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I wasn't able to locate the tips. Can you please provide a link ? thanks in advance.

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Advanced Performance Tuning

 

Contents Display

Terrain

Graphics

JobScheduler

Main

Sources

 

 

The Prepar3D.cfg configurations file stores your simulation settings. It can be edited with notepad or your favorite text editor. The following entries are not written into the Prepar3D config by default, but may allow users to fine tune performance. We have done a significant amount of work with Prepar3D 2.0 to reduce the need for these config tweaks, but the following tweaks should still work, and may help advanced users optimize their experience.

 

 

 

Editing Prepar3D.cfg

 

 

 

 

How to Make Changes to your Prepar3D.cfg Configuration File

Locate the Prepar3D.cfg file

Create a backup of the original Prepar3D.cfg

Right click file and click "Open", "Edit", or if prompted choose notepad or your other favorite text editor

Add the below text into the specific sections to make the desired changed

Save the newly updated Prepar3D.cfg and begin Prepar3D™

Below are entries to place in Prepar3D.cfg. They have the headings inclosed in brackets and the entries are bolded, followed by Performance Tuning Tips on the intended purpose of the fix.

 

 

 

[DISPLAY]

 

 

 

TextureMaxLoad=6

 

Non-Default entry. This entry will not exist in your Prepar3D.cfg file by default and must be added to the file.

Performance Tuning Tip:

CAN induce stutters! Use multiples of 3 *ONLY* (3, 6, 9 etc) perfect for Photorealistic scenery

 

[TERRAIN]

 

 

 

SWAP_WAIT_TIMEOUT=30

 

Non-Default entry. This entry will not exist in your Prepar3D.cfg file by default and must be added to the file.

Performance Tuning Tip:

This variable is the number of frames that the terrain engine will wait for terrain textures to be loaded into video memory before forcing new tiles of terrain triangles to be rendered.

 

[GRAPHICS]

 

 

 

SHADER_CACHE_VERSION=1

 

Non-Default entry. This entry will not exist in your Prepar3D.cfg file by default and must be added to the file.

Performance Tuning Tip:

Using this rebuilds your shader cache by incrementing the number each time you make a change to the Prepar3D.cfg.

 

[JOBSCHEDULER]

 

 

 

AffinityMask=14

 

Non-Default entry. This entry will not exist in your Prepar3D.cfg file by default and must be added to the file.

Performance Tuning Tip:

Prepar3D runs best with one thread per physical processor core. By default, the application will create one thread per physical processor core. On quad core plus machines, the application will leave the first physical core open to allow the operating system, drivers, and other programs to run without interfering. Please note that many AMD processors that are marketed as 4 or 8 core processors really have 2 or 4 physical cores with something analogous to hyper-threading, so the default of one thread on every other core is still the intended behaviour. The easiest method for modifying the affinity mask is to open the windows calculator in programmer view, select the binary display mode, and flip the bits in the binary number displayed to select which cores the application should run on. Note that the cores are represented right to left. /dd>

 

[MAIN]

 

 

 

FIBER_FRAME_TIME_FRACTION=0.33

 

 

Non-Default entry. This entry will not exist in your Prepar3D.cfg file by default and must be added to the file.

Performance Tuning Tip:

This setting, which defaults to a value of .33 (33%), defines the percentage of each frame that is devoted to loading scenery. Increasing this number can reduce "the blurries", but it can cause stutters, and can also reduce the overall frame rate. Try reducing the number to the lowest level where you still get smooth scenery paging. This will vary depending on disk speed as well as the type of flying, as well as the selected scenery settings.

 

- top

 

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Advanced Performance Tuning

Where is this posted on the LM site?

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That comes from the learning center documentation.

 

And where is that learning center documentation? Can not find it on the LM home page.

 

OK found it! It´s NOT on the LM site its on MY computer.

 

Start/All Programs/Lockheed Martin/Prepar3D V2/Learning Center and go to Tuning Guide.

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I thought V2.0 didn't require tweaking...lol


And where is that learning center documentation? Can not find it on the LM home page.

Its in game but one would think it would be pinned to the top of the website.

 

 

Must be trying to hide it.

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Well, P3Dv2 doesn't require tweaking.  Not like FSX does.  :P

But that doesn't mean you can't make improvements for your specific system. 

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And where is that learning center documentation? Can not find it on the LM home page.

 

OK found it! It´s NOT on the LM site its on MY computer.

 

Start/All Programs/Lockheed Martin/Prepar3D V2/Learning Center and go to Tuning Guide.

P3D installs it in your Start\All programs\Lockheed Martin\Prepar3DV2\Learning Center

 

oOoops. Echo. :)

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I read through this and went back to FSX and added TML=6 to my fsx.cfg and seems to alleviated some of my photscenery texture loading issues...lol

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Well I'll be damned!

 

Now if they would just fix the terrible AA this might be useable.

 

I basically tweaked this to Kostas guide less Bufferpools and HighMemFix.

 

I set FFTF to .2 just like in FSX, recommended for Orbx as a minimum.

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There is something I really like about P3D that I noticed with the help guide. Even if you shut P3D down the help guide stays open. LM's move towards this false fullscreen mode is really growing on me.  

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There is something I really like about P3D that I noticed with the help guide. Even if you shut P3D down the help guide stays open. LM's move towards this false fullscreen mode is really growing on me.

 

If they'd just fix the out of focus bug it'd be great.

 

I'm wondering if they are gonna move with 2.1 right away or stick with their quarterly update routine from v1.0? I sure hope they see the urgency in fixing some of these annoying bugs.

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I wonder if setting the P3Dv2 process priority to High like Jeroen's suggestion for TrackIR might mitigate the out-of-focus issue somewhat until LM fixes it.

 

That might require bumping TIR up another notch to Realtime though.  :)

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I'm wondering if they are gonna move with 2.1 right away or stick with their quarterly update routine from v1.0? I sure hope they see the urgency in fixing some of these annoying bugs.

I would imagine that they will put out a service pack and put out a v2.1 per a standard release schedule, but time will tell.  At least we can say that the product is being supported and improved.

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Well I spent all night using the tuning guide, adjusting some values and got my textures and scenary now loading almost instantly managed to raise my FPS even with my sliders at Medium, High and Ultra to appox 20  fps in the Otter extended about 25 fps in the default aircraft. With internal shadows enable fps will drop to about 20.

 

With Heavy clouds and rain and Orbx Global I get to about  18-19 fps in Otter.

I would get about 9-10 before tuning

 

If you mess with  this : FIBER_FRAME_TIME_FRACTION, it will give you faster  texture load and up your fps a bit.  l get 50 to 60 fps if set to zero but it will miss some of your trees and some buildings at such a low settings.

No noticeable blurriness and pop up  auto-gen.

 

What I like about P3Dv2 is even at low fps my  stutters are not as pronounced as in FSX.

 

My system is : AMD Phenom II x 4 965 OC 4.1GHZ

Radeon HD 6850 at 850 MHZ 1024 MBytes

3x 22" wide screens

CROSSHAIR V FORMULA-Z

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Well that was fun..till I tried landing at KPHX at night with a Default Baron.

 

I got my first ever OOM!

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I tried FIBER_FRAME_TIME_FRACTION=0.1. It doesn't noticeably give me more fps, but it does help a lot on the fps loss when I was fly A36(?). For whatever reason A36 eats 5fps which is a lot and causes noticeable stutters.With FFTF=0.1 the A36 takes a much less hit, maybe 1-2fps, and the fly is a lot smoother.

 

In FSX my fps always take a big dip when I'm near a big airport and FFTF=0.1 nearly cured this problem. Haven't observed something similar in P3D2 yet.

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The A36 wasn't good on frames in FSX either.

 

The fact that it's default now is a bit misleading in terms of performance. It's still an addon plane and being an older Carenado product, it's not that well optimized.

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