The great and powerful MASK. As finicky as a woman with 500 pairs of shoes in her closet.. trying to pick that perfect set for the evening. Hunt until you find what makes your computer come to life. For me on my 6 core it was AM 60.

I need help on setting the proper affinity mask in my fsx.cfg. I'm not sure if I have hyperthreading on or off but under the CPU-Z app it says Core: 4 and Threads: 8. So I'm assuming I have hyperthreading enabled?

 

If so what should my affinity mask be set to?

 

You should give FSX Assist a try. I have used it since it was released and would not run FSX without it

 

http://skypilot.biz/home/documents/readme.html

FSXAssist is one of the most elegant apps for FSX. Highly recommend it. Jim, the developer, is extremely knowledgable not only about FSX but also about Windows OS. Great support too.

The tweek for 6 cores is 62. 4 cores is 14. 8 cores is 254. Anything else just turns off cores for no reason. 84 is the same as 14, as far as core usage. Windows is still using core 0.

 

Dave

There might be a tiny increase however you have one thread less for compositing the terrain which may cause blurries. Best way is to experiment and see what works best for you. For me, removing the affinitymask line altogether resulted in the best performance and quality.

Agree. I've since removed the entry. It's simply not needed, particularly with Win8. Might be placebo effect, but I seem to get fewer stutters without it.

The tweek for 6 cores is 62. 4 cores is 14. 8 cores is 254. Anything else just turns off cores for no reason. 84 is the same as 14, as far as core usage. Windows is still using core 0.

 

Dave

 

It is indeed to use 5 of the 6 cores.   However, I use VoxATC and dedicate core1 for it's use only and FSX gets cores 2-5, windows gets 0.    Works like a boss.    Every person's need is different.

 

 

Every person's need is different.

 

That is fine when you know what you are doing. My post was for people that didn't know the exact tweek settings.

 

Dave