Jump to content

Sign in to follow this  
Matt Piotrowski

Does 1/2 refresh rate work?

Recommended Posts

Matt, so you are now externally locked to 30 and internally have set unlimited with Sync off and TB off, right?

What is the FPS count you get when not externally synced, nor internally?

 

This then gives a hint it the use of FIBER_FRAME_TIME_FRACTION or MIN_FIBER_TIME_SEC makes sense.

 


i9-9900K@5,0   |  32GB 3200  |  2080TI  |  4K 40" curved  |  MSFS | P3D V5

Share this post


Link to post
23 minutes ago, Matt Piotrowski said:

No.

For me at least, HT on with a suitable affinity mask works best, try to leave 4 threads or so free for windows non p3d stuff to use. Also assign any mods/addons to different threads to p3d. 

I have not used 4.4 yet though, and it is supposed to be better in that regard to 4.3. So that may no longer be relevant....

  • Upvote 1

AMD Ryzen 3900X - Asus Crosshair VI Hero - G.Skill 32GB (2x16GB) 3000 C14 DDR4 @ 3600 C16

AMD Radeon VII 16GB HBM2 @ 1950/1150 1135mv  - 3 x Iiyama G-Master GB2888UHSU 4k @ 7680x1440

Saitek X-55 Rhino - Track IR5 - Obutto Sim Cockpit + Triple Monitor Stand - Fancy some Techno? https://www.mixcloud.com/dj_bully/

Share this post


Link to post

He uses HT off.

You have a 4 core CPU, Matt, right?


i9-9900K@5,0   |  32GB 3200  |  2080TI  |  4K 40" curved  |  MSFS | P3D V5

Share this post


Link to post

Matt, I think you can try to dedicate a minimum amount of milliseconds to terrain loading by experimenting with MIN_FIBER_TIME_SEC. I would try:

MIN_FIBER_TIME_SEC=0.015 down to

MIN_FIBER_TIME_SEC=0.05

 

You have to add this in the Prepar3D.cfg in the    [MAIN]   section.

 

It is said that those tweeks (FIBER_FRAME_TIME_FRACTION, MIN_FIBER_TIME_SEC and MAX_FIBER_TIME_SEC) have minimal effect on multicore CPUs. But I saw an explanation of a P3D software architekt answering to a qustion from a user running a 4790K. This can be found here (2nd post):

http://www.prepar3d.com/forum/viewtopic.php?t=120133


i9-9900K@5,0   |  32GB 3200  |  2080TI  |  4K 40" curved  |  MSFS | P3D V5

Share this post


Link to post
8 hours ago, Matt Piotrowski said:

I tried turning HT off and I get blurry terrain but my sim runs better. Any way to fix the blurry terrain?

Yes, turn HT on again.


Bert

Share this post


Link to post
17 hours ago, LecLightning56 said:

One further thing, Matt, is that you should keep Riva Tuner Statistics Server running once having set the frame rate. In order to set frame rate in RTSS, enter e.g. 30 in the appropriate box which will flash, press enter to select it and then minimize RTSS (do not close it down). RTSS runs in the background and you will find that the frame rate stays locked in P3D (although of course set as unlimited in P3D itself).

I have used this exact same setup for a while now. RTS works at a different level than NVI resulting in a micro-stutter free environment.

Share this post


Link to post
11 hours ago, SteveW said:

If we mess around with the full-screen exclusive mode viewport we can perhaps see tearing if there is no vertical synchronisation.

The thing to note about P3D is that VSync = On in P3D Display settings is not the vertical synchronisation we associate with monitor behaviour.

P3D Vsync = On obtains the refresh rate setting of the monitor and arranges each frame to be output near that frequency. So we see typically wobbling around that frequency.. We do not see a cap it is not a limit. We see the wobble because frames take differing times to complete.

OK, so if we use Vsync ON in P3D, does it make sense to also set vsync on in NVI, or leave it at Application Controlled?

  • Like 1

Bert

Share this post


Link to post
54 minutes ago, Bert Pieke said:

OK, so if we use Vsync ON in P3D, does it make sense to also set vsync on in NVI, or leave it at Application Controlled?

Good question I asked myself many times ))

  • Like 1

Share this post


Link to post
55 minutes ago, Dirk98 said:

Good question I asked myself many times ))

I would set VSync as ‘Application Controlled’ in NCP. I believe NI tends to reflect settings made in NCP and vice versa.

Mike

  • Like 1

My rig: ASUS ROG Rampage V Extreme, i7-5960X (Dynamic OC 4.6 GHz - all cores, HT=ON, AM=21845), Corsair Hydro Series H110i GT Cooler with 2xNoctua NF-A14 PWM 140mm fans, G.SKILL Ripjaws 4 series 16GB (4 x 4GB) DDR4 3000, ASUS GTX 1080Ti ROG STRIX 11GB, GDDR5X (Driver versions: 441.66 (Win7), 452.06 (Win10)), Samsung 850 EVO 1TB SSD x4, Samsung 970 EVO 2TB V-NAND M.2, LG BH16NS40 16x SATA Internal BDRW, EVGA 1200 P2 Watt PSU, Cooler Master HAF X, ASUS ROG Swift PG278Q (G-Sync) monitor at 120Hz. Oculus Rift. Dual Boot: Windows 10 Pro 64bit (2004) / Prepar3D v5.0.31.35253, Windows 7 Pro 64bit / Prepar3D v4.5.12.30293.

Share this post


Link to post

The best way to go with P3D settings: Use any settings in P3D that exist there, and then go to the GPU control panel to make further settings.

Generally, settings in the GPU panels will override the applications own settings. Overriding can lead to possible problems or performance related issues since making the settings in apps may also slightly modify the way the app works with those settings. Setting elsewhere can leave the game unaware and behave differently. It's just a possibility so the precaution is to adhere to in-game settings primarily.

  • Like 1

Steve Waite: Engineer at codelegend.com

Share this post


Link to post
1 minute ago, bean_sprout said:

Unlimited - don't hold back the engine.

 

Cheers
bs

When the game runs at unlimited, it's not so bad. But if that means making frames above the monitor refresh frequency those frames are simply lost to heat. Better to add VSync=on to that Unlimited setting on the slider. Setting VSync=Off is a test mode to see just what the possible frame rate can achieve.


Steve Waite: Engineer at codelegend.com

Share this post


Link to post

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  
  • Tom Allensworth,
    Founder of AVSIM Online


  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Donation Goals

    AVSIM's 2020 Fundraising Goal

    Donate to our annual general fundraising goal. This donation keeps our doors open and providing you service 24 x 7 x 365. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. We reset this goal every new year for the following year's goal.


    31%
    $7,795.00 of $25,000.00 Donate Now
×
×
  • Create New...