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Weird performance issue - CPU?

Moderator: MiRai

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russeadg

Posts: 5

Joined: Fri Dec 30, 2011 8:13 am

Post Fri Dec 30, 2011 8:21 am

Weird performance issue - CPU?

Hi Lax,

Longtime customer, but new to ISBoxer and loving it!

I am 5-boxing WoW on an ALienware laptop - i7, 6GB, pretty ballsy. When I first got ISBoxer set up, it ran great - solid 60 fps in the foreground, smooth as glass transitions. A couple weeks later, something changed, and my fos slowed to about 20-24 in an instance, 5-10 in Orgrimmar. Then, a week later, back to high performance, then another week or two, and now I'm back to barely playable fps.

I have been assuming it was a CPU problem, and have tried the typical solutions suggested on these boards. However, in thinking the problem through, I'm not sure it's CPU at all. I can tell even before logging in to WoW on account #1 whether I'll be in high performance mode or slow mode, because the loading time of the 5 instances varies greatly. If I'm in high performance mode, my WoW instances (launched using ISBoxer) will start about every 8 seconds, and start up instantaneously; if I'll be in slow mode, the instances start about every 16 seconds, and there is noticeable slowness as the login screen renders.

So, I'm looking for your initial thoughts on what the root issue might be - hard to believe it's a CPU issue throttling just the loading screen of the first instance, even when Ihave round robin CPU set up and the first instance only has cores 1 and 2 (and of note, no matter what CPU strategy I try, if I'm in slow mode, I stay in slowmode, even if Igove all 8 cores to instance #1 just as a test).

Thanks in advance for any ideas or suggestions, very much appreciated!
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lax

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Posts: 7303

Joined: Tue Nov 17, 2009 9:32 pm

Post Fri Dec 30, 2011 8:34 am

Re: Weird performance issue - CPU?

This is the first thing your post makes me think of: HOWTO: Disable CPU throttling in Windows
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russeadg

Posts: 5

Joined: Fri Dec 30, 2011 8:13 am

Post Fri Dec 30, 2011 9:49 am

Re: Weird performance issue - CPU?

Oh man, I didn't think of power... not at home now, but will check tonight. You remain The Man!!
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russeadg

Posts: 5

Joined: Fri Dec 30, 2011 8:13 am

Post Fri Dec 30, 2011 5:31 pm

Re: Weird performance issue - CPU?

Lax,

Unfortunately, my power profile was already set up to be 100% in all states, as shown in your link.

Any other thoughts or ideas, it's driving me nuts! Many thanks again for your help.
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russeadg

Posts: 5

Joined: Fri Dec 30, 2011 8:13 am

Post Sat Dec 31, 2011 10:29 am

Re: Weird performance issue - CPU?

An update and a solution -

It turns out the Alienware M15x/M17x series laptops had a major problem with CPU throttling. A BIOS update (A08 or A09 if you have one) fixed it, and it's back to smooth as glass.

Thansk Lax, you pointed me in exactly the right direction - you are the man.

If any of you have an Alienware, feel free to PM me here, happy to help.
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lax

User avatar

Site Admin

Posts: 7303

Joined: Tue Nov 17, 2009 9:32 pm

Post Sat Dec 31, 2011 10:56 am

Re: Weird performance issue - CPU?

Awesome, glad you got it taken care of. :)

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