Only 25% Processing Power???

JVD · 2012-05-17, 07:43

Hey everyone... hopefully someone can help me out with this...

For some reason, when I run Prime95, I only use 25% of my CPU on it. Even if I'm doing nothing else, it won't dedicate more than 25% of my CPU to the process. Just wish I could utilize the other 3/4 of my CPU and get some real number crunching done... any ideas why this might be?

If I run another CPU-intensive process, it will continue to use 25% for prime95 and whatever % for other things, so it's not like my CPU maxes out at 25%, I just can't seem to get prime 95 working harder. Any ideas?

I have a quad core processor, if that makes any difference...

JVD · 2012-05-17, 07:49

Ah yes... I now see the option in "Test" --> "Worker Windows" that says "CPUs to run" -- That was set at 1, so all I had to do was increase that to 4, and problem solved! It never fails that I'll play around with this for about an hour, give up, post about it, try like one more thing, and solve the problem less than 5 minutes after posting... :-/

Dubslow · 2012-05-17, 16:32

Quote:

Originally Posted by JVD

It never fails that I'll play around with this for about an hour, give up, post about it, try like one more thing, and solve the problem less than 5 minutes after posting... :-/

Happens to me more than I'd like

cheesehead · 2012-05-18, 03:43

Quote:

Originally Posted by JVD

Ah yes... I now see the option in "Test" --> "Worker Windows" that says "CPUs to run" -- That was set at 1, so all I had to do was increase that to 4, and problem solved! It never fails that I'll play around with this for about an hour, give up, post about it, try like one more thing, and solve the problem less than 5 minutes after posting... :-/

That used to happen to me at work: I couldn't figure out something, so I'd get up and walk to a co-worker's cubicle to ask. Many times, just as I was speaking the question, I realized the answer myself.

It may be a matter of getting multiple parts of your brain involved: speaking (or writing to post in the forum) in addition to the silent thinking that hadn't worked. The sitting-to-walking change increased blood flow, which might also have helped.

ClownRoyal · 2012-05-19, 05:05

Quote:

Originally Posted by cheesehead

It may be a matter of getting multiple parts of your brain involved: speaking (or writing to post in the forum) in addition to the silent thinking that hadn't worked. The sitting-to-walking change increased blood flow, which might also have helped.

Interesting hypothesis.

2012-05-17, 07:43	#1
JVD May 2012 2² Posts	Only 25% Processing Power??? Hey everyone... hopefully someone can help me out with this... For some reason, when I run Prime95, I only use 25% of my CPU on it. Even if I'm doing nothing else, it won't dedicate more than 25% of my CPU to the process. Just wish I could utilize the other 3/4 of my CPU and get some real number crunching done... any ideas why this might be? If I run another CPU-intensive process, it will continue to use 25% for prime95 and whatever % for other things, so it's not like my CPU maxes out at 25%, I just can't seem to get prime 95 working harder. Any ideas? I have a quad core processor, if that makes any difference...

2012-05-17, 07:49	#2
JVD May 2012 4₈ Posts	Ah yes... I now see the option in "Test" --> "Worker Windows" that says "CPUs to run" -- That was set at 1, so all I had to do was increase that to 4, and problem solved! It never fails that I'll play around with this for about an hour, give up, post about it, try like one more thing, and solve the problem less than 5 minutes after posting... :-/ Last fiddled with by JVD on 2012-05-17 at 07:49

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