Macbook Pro hanging when running vm's

I have a macbook pro with 16gb ram, 500gb ssd, 2.6 GHz Intel Core i7. Latest version of Yosemite.

I use vmware fusion running a win8 vm running 1 cpu 6gb ram and a win7 vm 1 cpu, 5gb ram.

I noticed at times right above the keyboard it gets real hot, an the fans really down spin much. So I download a fan control app for the mac side and it does spin the fans more and keeps it cool, but I see the vm, using the win8 will hang and my cursor changes into the mac spinning rainbow wheel. So it seems the mac side it having issues.

I have reload the osx from scratch and rebuilt the vms. Still the same issue. Seems if I don't run the mac app the vms run fine until the system gets really really hot, then the mac rainbow wheel spins.

Any idea what I can do to figure this out?
rdefinoAsked:
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gheistCommented:
Probably dust in air path...
Does it fry when you run some browser benchmark like dromaeo ?
rdefinoAuthor Commented:
I ran the recommend test in one of the vms and it pretty hot.
Kyle SantosQuality AssuranceCommented:
One option is to buy a can of air for dust removal.
Find a reliable macbook edition related video online of how to open your macbook's shell.
Once the shell is off you should see noticeable dust bunnies and junk on components and fans.  
Without tilting the can itself (hold it upright) clear out the unwanted nasties that are most likely causing heat issues by poor ventilation.
Put the shell back on and fire the macbook and vm's back up.

On a side note: I have a macbook very similar in specs to yours (minus the ssd).  I've noticed my macbook hangs up when trying to run Quicktime or iMovie with other applications.  The laptop gets VERY hot too.

Let us know if you need anything else!

o/
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gheistCommented:
There is air circulation problem in computer. Try to find service guide of your mac, normally household vacuum at air intake shakes dust enough to make it cool again. Dont use vacuum cleaner on keyboard though...
serialbandCommented:
I usually open the case to blow out the dust at least once a year, especially on my 15" quad core.  If you just blow out the dust from the rear vents without opening the case, you don't get everything.  The 15" quad core gets noticeably hotter than a 13" dual core system and I generally prop up the rear to have more airflow under the case keeps it a little cooler.

You can blow air over the fan.  If you're worried about it spinning, just hold it while you're blowing the dust out.  Most of the dust will be around the fan vents.
rdefinoAuthor Commented:
So I opened the case and blew out the dust that was there, It wasn't bad, but there was dust.

But, still no change though, the vm's will hang, then work, hand. It goes back and forth. The system still gets hot, so I disabled the flash player plugin, since I have some tabs opened in chrome. that helps with the heat, but the hanging still happens.

Any way to monitor whats happening?
gheistCommented:
In activity monitor - if there is some swapping (page in/out)?
serialbandCommented:
Are you running both VMs at the same time?
rdefinoAuthor Commented:
Yes.

But if it's both putting stress on the system, why wouldn't the fans kick up to bring down the heat?
gheistCommented:
Because they are stuck with sugar syrup?
rdefinoAuthor Commented:
sugar syrup?
gheistCommented:
Anything...  Fans should spin at top speed when you use all CPU cores, to the degree computer vibrates and sounds unpleasant.
Kyle SantosQuality AssuranceCommented:
It sounds like you're maxing out the performance capabilities of the macbook pro and/or the macbook pro is not cooling properly despite your best efforts.

Are you able to try running both VMs on a desktop instead of a laptop?  In my opinion, laptops are not ideal for heavy work loads and air flow.  For example, hardcore gaming on a laptop is not going to be the same as hardcore gaming on a desktop.  The machine needs customized air flow and extra cooling systems implemented to handle such pressure.  Alienware (desktops and laptops) is arguably a decent example of trying to get the most out of a maximum gaming experience because they are over the top decked out machines with the latest, fastest, coolest (pun intended) technology.  I know you're not gaming, but I have a feeling the folks at Pixar do not create movies on macbook pros.  I believe desktops will always outperform laptops and the main argument in that case is proper cooling.

What can you do from here?

Use a desktop to do this work because your macbook clearly cannot handle the task; and this is no fault of yours of course.

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gheistCommented:
Yosemite released nov 2014
Macbook Pro with "2.6GHz i7" = since 2012

Question - did you uninstall and reinstall Fusion after OS update?
rdefinoAuthor Commented:
I didn't update. This is a image using our deploy studio.
gheistCommented:
Normally guest machines dont use much CPU if VT-x is enabled, so even with sub-optimal cooling machine should be quiet and cold.
serialbandCommented:
The 15 inch quad core MacBook Pros get quite hot when they have lots of stuff running.  Do you also have filevault enabled?  What other software do you have running?
rdefinoAuthor Commented:
What is meant by "dont use much CPU if VT-x is enabled"  is this a setting I can enabled?

On the mac side, I run nothing but the Os. All my work is done in the windows VMs.
gheistCommented:
Do you have latest EFI in MAC? That should enable CPU-assisted virtualisation so that guest VMs use minimal CPU time possible
rdefinoAuthor Commented:
Looks like I have the latest boot rom. The one I have is newer than listed on apple website. I also have the latest SMC.

Now do I have to enable this setting.
rdefinoAuthor Commented:
Turns out the mac just couldn't handled both vm's running.
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