For me the affinity mask trick posted by nudata see"Another Affinity Mask (Cores) Trick" has been a revolution.On my very now mediocre system Quad core 2.4 plus GTX 650 I am able to ramp up my slider settings.Using AF 15 and disable CPU 0 and then enable in Task Manager my Prepar3d v2.2 looks terrific.

On my system before I shut down I have to lower my settings as I get a CTD when I reload Prepar3D next time..

My frame rates are not amazing but its smooth.

I use orbx Global plus Vector plus Rex,Opus weather anf IFly 737.

 

Should always post the link.

 

http://forum.avsim.net/topic/442239-another-affinity-cores-trick/

 

Agree it does balance the cores.

Not sure if there is any performance gain yet.

I still have the micro stutters.

 

gb.

 

 

I still have the micro stutters.

 

If you are using cloud shadows or terrain shadows, have you tried putting the range out to 80,000?

 

It cured the micro-stutter problem I had with them enabled.

 

It sounds crazy, but it didn't bring down my FPS either.

I'm on Windows 7 and had to disable HyperThreading to get rid of stutters when using AF15 on my i7 2700K. 

It was enabling a feature called CPU Parking. Turning off HyperThreading gets rid of CPU Parking.

I also get better results with HT disabled on my i7 3770K. I'll need to check this affinity mask trick, as well as adjust cloud shadows.

I'm on Windows 7 and had to disable HyperThreading to get rid of stutters when using AF15 on my i7 2700K. 

It was enabling a feature called CPU Parking. Turning off HyperThreading gets rid of CPU Parking.

For me P3Dv2 works better with HT on. To disable CPU Parking with HT enabled try this: http://forum.cakewalk.com/Windows-7-amp-Core-Parking-a-better-way-to-Turn-It-OFF-m1861804.aspx

If you are using cloud shadows or terrain shadows, have you tried putting the range out to 80,000?

 

It cured the micro-stutter problem I had with them enabled.

 

It sounds crazy, but it didn't bring down my FPS either.

 

 

Thanks for the suggestion Philip but unfortunately it did not work for me.

 

gb.

Hmmm... this trick is not working like it was yesterday.

Now disabling/enabling core 0 just makes one of the other cores more dominant.

 

gb.

Microsoft has a program called powershell.  If you have windows 8 you have it, if you don't you can download it.

Put these in a .bat file and run after p3d starts:

 

PowerShell "$Process = Get-Process Prepar3D; $Process.ProcessorAffinity=254"

 

PowerShell "$Process = Get-Process Prepar3D; $Process.ProcessorAffinity=255"