ProcessAffinityMask

[maclean525]

Affinity Mask works like this:

Each core is one bit of an 8 bit byte. So if you have 8 cores:
11111111

Here's how you calculate those affinity mask numbers:
128 64 32 16 8 4 2 1

So if you wanted the game to use only the first two cores you would set it to 1+2=3. If you wanted it to use all 4 cores on a quad core machine it would be 1+2+4+8=15.

From my experience with other games, hyperthreading on a quad-core is counter-productive so turn it off. In addition freeing up the first core for windows seems to reduce micro-stutters (in other games I'm talking about here like FSX)

I've found 14 to be the sweet spot for my system (using cores 2,3,4 core 1 free for windows)

[322Sqn_Dusty]

Great, indeed i'm with 14 on my q9550. Thank you for the info.

[Vengeanze]

So Affinity set to 2 is to make CoD use the second core on a dual core leaving the first core for windows?

[322Sqn_Dusty]

Yes, Core 0 (first core) is bit 1. Core 1 (second core) is bit 2 etc.

[b101uk]

As far as I am concerned “ProcessAffinityMask” dose absolutely nothing either as Luthier described it or anyone else has (without the “;”), so it works much like that other game placebo the anti epilepsy filter which either never existed or is imposable to turn off.

placebo are used in medicine for good reason because of the way the mind works which is why no end of people report getting better when taking them in clinical trials etc.

[FlushMeister]

So on a hexacore machine it's: 1+2+4+8+16+32=63 ?

Thanks

Originally Posted by maclean525

Affinity Mask works like this:

Each core is one bit of an 8 bit byte. So if you have 8 cores:
11111111

Here's how you calculate those affinity mask numbers:
128 64 32 16 8 4 2 1

So if you wanted the game to use only the first two cores you would set it to 1+2=3. If you wanted it to use all 4 cores on a quad core machine it would be 1+2+4+8=15.

From my experience with other games, hyperthreading on a quad-core is counter-productive so turn it off. In addition freeing up the first core for windows seems to reduce micro-stutters (in other games I'm talking about here like FSX)

I've found 14 to be the sweet spot for my system (using cores 2,3,4 core 1 free for windows)

[BrassEm]

Originally Posted by FlushMeister

So on a hexacore machine it's: 1+2+4+8+16+32=63 ?

Thanks

Yes, you got it! (111111 binary to decimal conversion = 63)

Good to see you around again Flushy!

[touchdown42]

Well,

at least for me it doesn't work.
I changed it to 14 but still my first core does most of the work.

2600K Hyper threading disabled

[322Sqn_Dusty]

the ; in front of it is removed i assume. Does it save it or does steam put the files back to original?

[FlushMeister]

Hey m8! Thanks a lot man I have another 10 years of my life dedicated for this sim How bout you?

Originally Posted by BrassEm

Yes, you got it! (111111 binary to decimal conversion = 63)

Good to see you around again Flushy!