Disable E-cores in config.wtf

[Lillydot-mograine]

Dear Support.

When playing on a 12th gen intel cpu I have up to 20% more frames when I disable the e-cores, but I don’t always want to disable them in the bios before playing WoW.

Disabling the e-cores via task manager ended up with insane lags infights. I couldn’t find out the reason therefor. But I found recently the internal WoW setting processAffinityMask but don’t know exactly how to use it.

When running a 12600k for example (6 p-cores and 4 e-cores), I thought it must be

111111 0000 => "1008"

but that didn’t work at all. I got like < 20 fps in total. So how to use that correctly? Is it thread based? And if so, the e-cores only have one thread so how do I set it up?

11 11 11 11 11 11 00 00 00 00 => "1048320"

or

11 11 11 11 11 11 0000 => "65520"

?!

Thanks for your time.

[Xallid-tarren-mill]

You are reading this the wrong way around it’s 0000 1111 1111 1111, in case of the 12600k it would be 4095 or FFF

[Lillydot-mograine]

Hey, thanks for you answer.

Where did you get them from? Because no matter what software I am looking at, the p-cores are listed as core 0-5 and the e-cores as core 6-9.

Also tested it ingame and had a lot less FPS under heavy load (coming from an empty area to an area where a lot of players are).

[Xallid-tarren-mill]

well that specific cpu has 10 cores, 6p+ 4e, the p cores have 2 threads each totaling 16 threads, if you open windows task manager > performance > cpu > right click the big graph and change graph to > logical processors, you can see all 16, in task manager the last 4 are the E cores

the way the affinity mask works is reversed so in the first reply i gave core 0 is the last in that bitmask list, and core 15 the first one

Some tool like cpuid hwinfo can show all the cores/threads p/e core usage. Some tool like process lasso might also be useful if you only want to assign specific threads to an application.