Mischung

Affinity Mask -> NEVER leave out Core 0!

Recommended Posts

I have P3D running on an i7-9700K, locked at 45fps with the PMDG 737-700. Disabled cores 0 and 1. Was something supposed to happen?

(Disabled 2 and 3 as well... still nothing). 

Cheers!

  • Like 1

Share this post


Link to post
Help AVSIM continue to serve you!
Please donate today!

Just to re-enforce the OP's point--

With Version 4.4 of P3D, having core 0 masked caused the same issue for me. Viz, terrain textures not loading during flight. I have HT on and 8 cores. This used to be non-problematic. Something changed with 4.4, in this regard.

I was using process lasso. Now, I'm not using process lasso. Problem solved. I've think I've noticed a lower CPU load with 4.4 also. I can't give anything beyond a 'I think' because I don't have any data. I used to see near maxed CPU load and now, not so much.

Share this post


Link to post
19 hours ago, Mischung said:

Solution:

 

To make it short => Never leave out Core 0 in your AM (maybe different with HT).

 

Yes, you are absolutely correct !!!!!  👍

At least your observations are congruent with my own experiences.

But I observed this "phenomena"  of " Never leave out Core O in your AM"  since the release of Prepar3D v3, and it caused me a lot of headache, research, try and error.

Because in these days (v.3) you could often read on forums posts like this "...don't assign your P3D to Core 0, because of...etc...etc...etc..."

Leaving out Core 0 makes texture loading slower and has literally no benefit for a better sim performance. ---> that was and still is my final conclusion.

Your mileage may vary.

 

Cheers, Konrad.

Edited by KBUR
English and me don't love each other.
  • Like 1

Share this post


Link to post
12 hours ago, mpw8679 said:

That is simply not true.  In extremely complex scenery u will see scenery loading improvement with more then 8 cores.  8 core is the sweet spot IMO.  U can easily overload the rendering cores with 6 or less cores.

Matt,

I fail to understand why you would type out long words like improvement but always use "u" for you. You're saving 2 letters and possibly causing confusion to those whose first language is not English. I know you mean no harm by doing it but seeing it repeatedly is irritating. :wink:

Share this post


Link to post

My suggestion from my experience is plain and simple: Don't tweak the AF setting at all, and you will be fine!  Those who tweak the AF setting may be surprised about blurry textures or late autogen loading.

Share this post


Link to post
22 hours ago, AnkH said:

I got perfectly fluid and smooth P3D as soon as I moved most of my addons off core0

How do you do this?

Share this post


Link to post
2 hours ago, Afterburner said:

My suggestion from my experience is plain and simple: Don't tweak the AF setting at all, and you will be fine!  Those who tweak the AF setting may be surprised about blurry textures or late autogen loading.

 

That's a good point to show how different our PC systems can be among us:

If I don't set a correct Affinity Mask (my preferred tool is PROCESS LASSO !!!!), if I don't tweak --> I get more microstutters, less smoothness, more time outs and higher core temperatures immediately.

After years of experience and tries and errors among various sims, I found something like a "sweet spot" - even on my aged but still performant system. 

Yea, it can be cumbersome ! 

The best would be to upgrade to a Monster Computer with loooooooots of performance :

77398777-illustration-of-a-monster-compu

 

Edited by KBUR

Share this post


Link to post

I thought p3dv4.4 already leveraged multiple cores...?

Share this post


Link to post
16 hours ago, Mischung said:

That's some kind of Voodoo to me and I can not understand that this is working good 😆

I once used Process Lasso to assign cores to P3D and it ended in stutters without end, because the primary rendering task had no 100% load anymore (with frame rate limited). Workload seemed to spread across all cores better, but it was not fluid anymore.

Setting the exact same AM in my P3D.cfg that I used with Process Lasso before resulted in a very fluid sim with core 0 at 100% load all the time (that's the way it is with a TFR) 

I used Process Lasso too but also had bad results with it. Check out the link below, that is where I found the method which I still use... 

 

https://www.prepar3d.com/forum/viewtopic.php?t=129222

Share this post


Link to post
4 hours ago, Ray Proudfoot said:

seeing it repeatedly is irritating. :wink:

Ray,  Are u an introvert?

Share this post


Link to post
30 minutes ago, mpw8679 said:

Ray,  Are u an introvert?

No, I'm a lover of the English language. Still using it I see. 🙄

  • Upvote 1

Share this post


Link to post
16 minutes ago, Ray Proudfoot said:

No, I'm a lover of the English language. Still using it I see. 🙄

Scientific studies have shown that "grammar bullies" have less agreeable personalities and have a constant need to feel superior to others.  If my writing offends your ego I suggest not reading my posts.

Share this post


Link to post
18 minutes ago, mpw8679 said:

Scientific studies have shown that "grammar bullies" have less agreeable personalities and have a constant need to feel superior to others.  If my writing offends your ego I suggest not reading my posts.

Matt, stop being a plonker and use you instead of u.

  • Like 1
  • Upvote 1

Share this post


Link to post
1 hour ago, Boomer said:

I thought p3dv4.4 already leveraged multiple cores...?

Yes, by default P3D v4 uses all cores, and for CPU's with hyper threading, all threads, but it doesn't necessarily mean using all available cores/threads will give you the smoothest most stutter free performance, and if this discussion is any indication, it varies widely from one person and system to the next.

For me personally, I get the best overall performance with HT "on" and an affinity mask in the P3D cfg.

I didn't arrive at this conclusion casually either, it came after many months of careful and persistent experimentation. YMMV....😎

Share this post


Link to post
12 minutes ago, Ray Proudfoot said:

Matt, stop being a plonker and use you instead of u.

Ray,  With your superior knowledge of the English language it surprises me your resorting to petty insults. 

Share this post


Link to post
13 hours ago, Ray Proudfoot said:

Matt, stop being a plonker and use you instead of u.

 

....ah, thanks for a new vocable!   That's what my dict.cc shows about " Plonker " 😉 :

cutting-branches-450w-185696357.jpg

  • Like 2

Share this post


Link to post

Konrad, for one who claims "English and me don't love each other", you do quite well! 🍻

Greg

  • Upvote 1

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