Q: System and System Interrupts- high cpu utilization

Will this update also remedy the occasional high CPU utilization of "Boot Camp Manager" or is that a totally different problem? MBP 13 Retina , late 2013, 8.1  full. Sometimes 34%

Hey, thx alot, where can i find that signup? I wasn´t able to download anything yet. I wasn´t able either to register me somewhere to get the download.

Thx so much.

Greetings from Germany

https://appleseed.apple.com/sp/betaprogram/

Problem resolved with 10.10.2 Beta.

Also the minor temp issues I had with Yosemite seem to have been resolved too.

Thankfully have no reason to ever boot into OS X again

Thx so much

Just wanted to say a BIG THANKS to all of the people that suggested/validated the 10.10.2 Beta, you solved my problem and for that I'm grateful,

I confirm that beta realease 10.10.2 solves the problem of System Interrupts. Furthermore, I noticed that the battery life on Windows 7 lasted at least twice longer since I installed the beta realease.

Thanks !

I confirm that the EFI update which is installed by Yosemite beta realease 10.10.2 solves the problem of System Interrupts on my i7 2013 MacBook Air running Under Windows7/BootCamp.

Regards,

--

Stéphane

I tried the Beta fix and here's what I found: the System/System Interrupts is fixed, but occasionally (a third of the time), BootCamp.exe will run at 30% when I start Windows.  It doesn't slow down after 5 min or so, but if I exit Bootcamp and restart it, its OK again (0-1%).

Also it seems like the processor speed drops down to 800Mz quite a bit... saving battery power perhaps?

Anything to do with boot camp.exe is unrelated to this issue.

Processors regulate the clock speed required automatically.

Does 10.10.2 beta2 offer any updates for the Boot Camp drivers? I guess you'd have to run the Boot Camp Assistant on beta2 to download and save the Windows Support Software in order to determine if it is any newer than what is shipped right now - 5.1.5640 IIRC.

A driver and Boot Camp Control panel update will be really neat at this point and is the last step in making the Air a great Windows 8.1 laptop.

I'd recommend everyone who hasn't access to the latest OS X Yosemite 10.10.2 Beta update to be sure they limit the CPU utilization ASAP upon startup by going into sleep mode and then resuming.  My SSD has just failed after 9 months and needs to be replaced, and I suspect that all that CPU thrashing may have been the cause.  I seem to remember someone mentioning that the hard disk is queried via this process in an endless loop, which probably isn't healthy!  Luckily I was able to use DiskWarrior to save my data and have plenty of backups to rely on, but the SSD failure was abrupt and without warning.

The problem is anything but solved on my machine (Macbook Pro 13 2010) with OS X 10.10.2 beta 4 and latest BootCamp drivers for Windows 7 64 bit.

Ok, I updated to the beta Version and it just works for me now.

Is it normal that the Macbook´s batterie doesn´t hold for that long with Windows than it does with OSX? The estimated time for the batterie is also very inconsistant. sometimes 25% mean 20 minutes, sometimes 25% mean 1,5h.

Greetings

Updated to beta and now final, but no EFI updated. Problem still present. Maybe, because OS X installed on USB drive????