CPU 0 Under Heavy Load. Have to change affinity to run games smoothly.

Hi all,

I have an i7 3770k cpu that seems to favor core 0. The problem residing from this is a performance drop when running any game (Call of Duty Ghost for example). I was getting a huge drop in fps making the game unplayable. After checking out resource monitor, I noticed core 0 under heavy load, so I changed the affinity to use cores 1-7. This fixed the problem and all my games run great. It's rather annoying, however, to have to do this every time. Is there a way to launch an application with the affinity pre-set? Or is there a way to distribute the system processes? Here is a screen shot of task manager on a diagnostic boot using only basic services and drivers. Notice that core 0 is under heavy load.

[url=http://s917.photobucket.com/user/Jpietersma969/media/TaskmgrPic_zps6bb05709.png.html?filters[user]=138716678&filters[recent]=1&sort=1&o=0]http://
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More about cpu heavy load change affinity run games smoothly
  1. Sounds like you may need to unpark your cores.
  2. Master-flaw said:
    Sounds like you may need to unpark your cores.


    I gave it shot, but it made no difference. I still have to remove cpu 0 from any game process to avoid suffering a huge fps drop.
  3. Check the processes tab and see what is taxing your cpu. google the name of the process and if you do not recognize it.
  4. sunshine240sx said:
    Check the processes tab and see what is taxing your cpu. google the name of the process and if you do not recognize it.


    After booting up this morning, I checked resource monitor to see that there was slight cpu usage spread out across cores 0, 2, 4, and 6. I thought it was looking to be in good shape, so I ran a game only to get the same results. System interrupts spiked to about 12% cpu usage and seemed to be only on core 0 as the other cores had moderate usage compared to core 0 which seemed to be at it's max. I've checked out several forums on system interrupts causing high cpu usage, but no one seemed to have viable solution.
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