CPU usage way too high

[pborzenkov]

Thanks pborzenkov, I have a MBPro 5,1. By the way I can reproduce the issues as many time as I need and it seems not "random"; it happens only when started from shutoff.

If it depends from module loading it should be random, but it's not so.

I didn't find any notice about Apple drivers update.

To reproduce it you should mount an extra HDD instead of the DVD; this should be enough.

I hope you can help me to find a solution.

thanks again

If you have stable reproduction, the best way to deal with this problem is to file a bug for Apple: http://bugreport.apple.com
It might take a lot of time to resolve the issue, considering that it most likely won't be high priority for them.
Until then, the only solution I could suggest is to not change DVD to HDD

 

[PaulChristopher@Parallels]

Very same issue

I've got a brand spanking new MBP 2.7GHz running Lion 10.8.2 equipped with 16GB of RAM. My temperature without Parallels and a ton of apps open is around 70 Celsius. As soon as I start Parallels 8 (without any Windows apps running) it climbs up into the 80s and 90s. Running any type of app pushes it over 100 Celsius in no time. This is particularly evident after suspending my VM and waking it up again. Heat issues right from the get-go.

Parallels 8 has an issue that they are not addressing. I wonder if it may take a class action lawsuits by everyone who's hardware has been damaged to fix this once and for all, despite the fact that this problem has been known for a long time now.

Hi, please follow the steps mentioned below to fix the issue
1. Download CPU throttle application to your Mac.
2. Move it to somewhere it can be kept for long period of time (like Documents).
3. Note: following lines should be typed without quotes. Go to the same location in Mac Terminal ('cd ~/Documents').
4. Type in: 'chmod +x cputhrottle'
5. Go to 'Activity Monitor' and find the process you want to limit (in Parallels Desktop case - 'prl_vm_app'). Note its PID.
6. Back in Terminal, type in: 'sudo ./cputhrottle ' (example: 'sudo ./cputhrottle 766 70'). You may also need to enter Mac user's password into Terminal if it asks for it.
7. Application is now active. It is limiting the CPU consumption of virtual machine process and your CPU should no longer heat up as much.
8. You can stop running cputhrottle by pressing CTRL+C in Terminal. This will remove the limit on the process.