hey guys, if you remember I started a topic earlier regarding low FPS with my core i7 system (specs on sig). I bought the EVGA GTX 570 SC and FSX works likes a charm, super smooth and i really cant ask for more. I am getting nearly 40 FPS in LAs Vegas with autogen set to very dense!!.I was going through the affinity mask tweak, and I would like to get your opinion on the best setting for the affinity mask with a core i7 and HT enabled?Thanks

I was going through the affinity mask tweak, and I would like to get your opinion on the best setting for the affinity mask with a core i7 and HT enabled?

I use 85 which keeps the four real cores active and disables the HT "cores".

I use 85 which keeps the four real cores active and disables the HT "cores".

I was using 255, loading times and overall smoothness was just breathtaking! How are your FPS with 85?

I use 85 which keeps the four real cores active and disables the HT "cores".

Hi,Thanks for this information, as I was curious how to set the affinity mask to use all 4 physical processors while leaving HT turned on. I'm currently running an affinitymask of 84, which to my understanding, leaves core 0 free for the OS and other tasks, and runs FSX on the remaining 3 physical cores, but I notice that if I eliminate the affinitymask, FSX processor usage (in Task Manager) can easily exceed 60%, which I *think* means it must be spawning threads on the HT cores (since it's my belief that FSX should not exceed 50% if it was only using the 4 physical cores). I do get better/faster loading with no affinitymask set, but also get frequent stutters (which coincide with the FSX process going over 50% CPU usage), so I've been looking for the affinitymask value to use all 4 physical cores (0,2,4,6) while avoiding the HT 'uncores' (1,3,5,7), to see if making sure no threads get spawned on the HT cores helps eliminate or reduce stutters.Thanks again for the info, this is exactly what I was looking to find today. :) I'll be trying an affinitymask of 85 when I get on my FSX machine later on. Thank you! :)-George

Hi,Thanks for this information, as I was curious how to set the affinity mask to use all 4 physical processors while leaving HT turned on. I'm currently running an affinitymask of 84, which to my understanding, leaves core 0 free for the OS and other tasks, and runs FSX on the remaining 3 physical cores, but I notice that if I eliminate the affinitymask, FSX processor usage (in Task Manager) can easily exceed 60%, which I *think* means it must be spawning threads on the HT cores (since it's my belief that FSX should not exceed 50% if it was only using the 4 physical cores). I do get better/faster loading with no affinitymask set, but also get frequent stutters (which coincide with the FSX process going over 50% CPU usage), so I've been looking for the affinitymask value to use all 4 physical cores (0,2,4,6) while avoiding the HT 'uncores' (1,3,5,7), to see if making sure no threads get spawned on the HT cores helps eliminate or reduce stutters.Thanks again for the info, this is exactly what I was looking to find today. :) I'll be trying an affinitymask of 85 when I get on my FSX machine later on. Thank you! :)-George

FSX does not utilize virtual cores.

If I understand Bojote correctly, you can't avoid the use of core 0. Bjorn

Try AM:14

Ok....After the Bojote tweak, my AM says 84.Is that correct?V

I guess I'm asking if the 84 turns off HT, or leaves it on? Or what is the best config for my system.....I know I need to just try different values and see!I won't be able to do much flying and tweaking till the end of next week, going on vaca!V

I guess I'm asking if the 84 turns off HT, or leaves it on? Or what is the best config for my system.....I know I need to just try different values and see!I won't be able to do much flying and tweaking till the end of next week, going on vaca!V

Just disable HT in the BIOS and be done with it.Vic

Just disable HT in the BIOS and be done with it.Vic

Advice taken! Thanks!V

Try AM:14

HT enabled (AM=254) for faster texture loading.HT Disabled (AM=14)