Version 4.1

This is a very useful and informative discussion.
I would like to pick up your suggestion, Gordon, and ask if you could open a new thread with a related title to further explore this matter.
I'll sticky it because there 's a lot of useful information on how to tune p3d 4.1 to specific systems.


Thanks,
Mark
 
YoYo said:
btw.
gman5250 I see You have V-sync off and You wrote about 100 fps, so do You have G-sync and monitor with refresh rate 144? If V-sync isnt ticket You dont see screen tearing on monitor ?
V-sync/G-sync limits fps to refresh rate of monitor, so for example I setup my monitor to 60 Hz, and in P3D I see 60 fps max, not more (so level of Hz of monitor, btw max my is 144). However, Fall Creators Update Windows 10 (3-4 November) causes problems for P3Dv4 with this.
Click to expand...

Screen resolution 1080p, 1920 x 1080
Monitor refresh is 60HZ.

In all of the video I have shot, V-sync has been off and texture filtering as I posted earlier. I've never had any tearing, not even in the raw video cap. I've also found that texture filtering, at least for my monitor resolution doesn't have to be at the highest settings. If I do turn V-sync on with triple buffering, FPS drop down around 60. Still good for video, but there is no benefit for me using V-sync.
 
roger-wilco-66 said:
This is a very useful and informative discussion.
I would like to pick up your suggestion, Gordon, and ask if you could open a new thread with a related title to further explore this matter.
I'll sticky it because there 's a lot of useful information on how to tune p3d 4.1 to specific systems.


Thanks,
Mark
Click to expand...


I'll do that today Mark.

We can get the topic going with some guidelines and parameters. I'll follow up with a video showing my setup A-Z and live charts, FPS etc. It's a lot more comprehensive when you watch the data through all of the peripheral monitors.

I think it will be a helpful tool, seeing as P3Dv4 is such a diversion from everything that went before. I'm still deep in the learning curve, but I am getting super results so far.
 
Gordon, is affinity mask only for hyperthreading CPUs? I have an i5 7600k, no affinity mask, and P3D keeps Core 0 at 100%, and the other three are evenly distributed according to load. Total load maxes out over NYC at around 65%, 40-50% everywhere else. I figured out any stuttering I saw was from the GPU (6GB GTX 1060) exceeding 100% usage (heavily-forested with cloudy/hazy weather), and changed my settings so it never uses over 90% in those situations. I get to keep PTA, yay!

Pat
 
patful said:
Gordon, is affinity mask only for hyperthreading CPUs? I have an i5 7600k, no affinity mask, and P3D keeps Core 0 at 100%, and the other three are evenly distributed according to load. Total load maxes out over NYC at around 65%, 40-50% everywhere else. I figured out any stuttering I saw was from the GPU (6GB GTX 1060) exceeding 100% usage (heavily-forested with cloudy/hazy weather), and changed my settings so it never uses over 90% in those situations. I get to keep PTA, yay!

Pat
Click to expand...

Affinity mask can be utilized with hyper-threading disabled or enabled Pat. You can manage those settings through your BIOS.

The calculator will create a curve based on the parameters you check in the setup menu. There is a tick box for hyper-threading. Just leave that un-checked and the number will be calculated based on that parameter.

The calculator will work for dual core, quad core, hexacore and octacore processors, and there are two menu options offering Easy and Expert modes.
 

I did test with AM=255 and AM=116 (like on this video).
It looks like 116 gives more stable/smooth picture. Must to try more, after few days I'll know its a good option for me or only placebo effect :biggrin-new: (for i7, HT=off).

 
Last edited:
For us simmers, any discussion of Affinity Mask must be accompanied by an explanation of which external add-ons we use (much as Gordon did a couple posts ago).

Steve Waite (http://codelegend.com/) has some interesting discussions and points about Affinity Mask and Logical Processor (LP) configuration over at Avsim. The two most important facts I've learned from him... P3Dv4 must be configured to minimize thread crashing (especially critical for the first LP the sim uses) and always include your external add-ons when considering an Affinity Mask (for any sim but especially for P3Dv4).

Greg
 
Beaufighter said:
Hi
Tried using Affinity Calculator (http://www.gatwick-fsg.org.uk/affinitymask.aspx?SubMenuItem=hardware), not sure how to use Expert mode...my CPU i7-3820 4 cores 8 threads...got value 84 in easy mode, would like to make sure with expert mode. Please help
Regards
Click to expand...

Go into Expert Mode and:

1. Tick hyper-threading enabled. The page will reboot and give you the expanded menu in Expert Mode.
2. Tick all of the boxes for 0 thru 3 for Logical and Thread.
Example: Logical 0, Thread 0, Logical 1, Thread 1, Logical 2, Thread 2, Logical 3, Thread 3.
3. Select Calculate. That should give you your number.
 
gman5250 said:
Affinity mask can be utilized with hyper-threading disabled or enabled Pat. You can manage those settings through your BIOS.

The calculator will create a curve based on the parameters you check in the setup menu. There is a tick box for hyper-threading. Just leave that un-checked and the number will be calculated based on that parameter.

The calculator will work for dual core, quad core, hexacore and octacore processors, and there are two menu options offering Easy and Expert modes.
Click to expand...

Thanks, Gordon. I ran the calculator for 1111 (AM=15, default, I guess), 0111 (14), 1011 (13), 1101 (11), and 1110 (7). With affinity masks of 13, 11, and 7, Core 0 stayed at 100%, the core set to zero was very low, and of the other two cores in use by P3D, one was always twice as high as the other (often nearing 100%), so really not as balanced as it is by default for me. No noticeable increase or decrease in FPS, still no stutters. With affinity mask of 14, Core 0 was really low, and the other three were often running at 100% simultaneously, stutters galore. So I'd say I HAVE to have P3D use Core 0. Since I see more balance with default, I'll stick with that for now. Thanks again for the help.

Pat
 
lownslo said:
LOL... why would they password protect that file!! I haven't had to replace the file since I started using it almost 4 years ago, but found a link at this simming site: https://www.sas1946.com/main/index.php?topic=32520.0 The password for the calculator is "sas1946" (without double quotes).

HTH,

Greg
Click to expand...

Thanks for the follow up. This little program is very handy and better than an online one from a website which one day might disappear.
 
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