I was recently experiencing some hiccups in my game Torchlight, and was wondering what it could be. I minimized it and looked at my CPU monitor, and saw that Core 1 is at 100%, while the almost all other cores are all at 0%, with 3 of them 1%-5%. Is this normal for an i7? Should it be completely stressing one core, but not touching any of the others? Am I misunderstanding how processors work? Seems weird for just one core to be stressed all the way to 100%.

What do you think the cause could be for the hiccups mid-game? They are only about .5 seconds long, and am considering what all I should check.

<3