System and System Interrupts- high cpu utilization

Apple asked us to send feedback to apple.com/feedback so please people complain about this here.

You can hibernate and start Windows again(=resuming), the load by the interrupts will be gone then, also with Intel graphics drivers installed.

Of course this shouldn't be the case but it's fixing the issue as long as Apple doesn't do something about it. Instead of shutting Windows down you'll just hibernate everytime you want to leave Windows. You can also boot OS X without problems in between Windows sessions. Doing this for over half a year.

MBP 2014 late
Updated to 10.11.2.beta 4 and nothing changed

Wow!!!

Something fixed this issue on Windows 10 in the last week!!!

I just made reboot on my computer and while I was preparing to to put it on standby and wake it up again (THE workarroud) I realized the CPU consumption was gone! Just to make sure, did a reboot once again and it keeps with all cores idle, no more system and interrupts consumptions taxing the CPU0.

I think the fix might have come from Microsoft, because didn't use OSX at least for a month.

Anyone else experience this fix?

Regards

Please read 2 posts above yours. I already explained what you "discovered" but people simply don't do it or didn't read my post. It works for over a year with Windows 8.1 already. Microsoft didn't change anything. This is working a long time already.

Also, changes in OS X won't affect Windows...so people waiting for OS X updates to change behaviour in Windows are waiting till the end of time.

Hello Morvs,

I read your post, but actually something seems to have been changed recently on Windows 10. Further investigation, lead me to conclude the core problem remains, but was minimized by a Windows 10 change.

Notice these two behaviors on Windows 10:

1. Previously: I Shutdown (not hibernate) Windows and power it on again and the high CPU problem was there right away!

2. Now: I Shutdown Windows and power it on again and the high CPU problem is not there anymore!

HOWEVER: If I restart Windows (instead of power it off/shutdown) the problem reappears.

This behavior change was introduced recently and seems to be a consequence of a Microsoft update.

(https://blogs.windows.com/windowsexperience/2015/11/12/first-major-update-for-wi ndows-10-available-today/)

From what I have read, a recent cumulative patch drastically improves Windows 10 startup time. I believe this may be connected with the Fast Startup option (also available on Windows 8) that is a sort of OS core state hibernation, that became the default startup configuration since this cumulative Windows update was installed.

Regards,

Hi abel.e.pereira,

well then it seems to have been something that Microsoft changed but it's likely it's something about the fast boot thingie, just like you say.

However if you're using a Macbook Pro of decent age you're having a SSD and hibernating and starting again is only taking seconds and should be even faster than Fast Boot. My latest Windows session lasted 17 days until I had to restart due to my anti virus solution demanding one. In all these days I was hibernating only 🙂

If I restart Windows(so the problem is present then) I only let the system come to the log in screen(if you've set a password) and I directly hibernate from there without logging in. After starting again I log in and do my stuff. It's really not taking much time.

You may try and compare both ways.

MacBook Pro 15 2014 late (11.2) updated to 10.11.2 and nothing changed. So when apple will fix it? I want buy eGPU but i think with this problem it doesn't work 😕

Thanks man. This is working for me. Like 4 months with this problem and this fix work better than the sleep one.

10.11.3 MBP 15 late 2014 nothing changed 😢

You can wait until the end of time, Updates of OS X WILL NOT change anything regarding Windows.

Apart from this there's a solution presented at the top of this page if you don't mind actually reading solutions instead of blaming updates of OS X for not changing stuff..

The problem came with OS X Yosemite , so apple must fix it, i want use my mac like when i bought it. If i switched with hdmi, this problem returns. Why, when I paid for the MacBook 2000$ , I have to endure this? Sleep and hibernate NOT solution of this problem. Fastboot disables thunderbolt ports, so this mac become useless. People who had this problem on mbp 13 2014, resolved it by updating to 10.10.2. Actually i have 15 and this problem present.

You're supposed to use your Macbook with OS X. Apple doesn't have to do anything if Windows doesn't work the way you expect it. Did it come delivered with Windows installed? I don't think so, it came with OS X. Do you complain to other notebook manufactures about their lack of Linux support when they're delivering the device with Windows and give support for that? I sincerely hope you don't.

Bootcamp is a simple "extra" so that it's easier for you to install and use Windows, nothing else.

If you buy a Macbook and it becomes "useless" just because something with Windows is odd, well then you might look for another notebook manufacturer which sell their devices with Windows, there are plenty of very good Windows notebooks.

Also, fun fact: I'm using hibernation for nearly a year now without a single problem because I'm using Windows on my 15" Macbook Pro Mid 2014 with an eGPU to play games 😉 So you can talk whatever you want, it works.

OS X is on 10.11.2 and every previous version worked as well.

OS X 10.11.3 beta 1 works fine, i think better then previous. But I've heard that eGPU does not work, if you say that it works, I will try install it. Can you answer a few questions? Does your MacBook comes with a discrete graphics card? And which monitor displays an image? I'll be very grateful. It's offensively, when everything is working, and then after update it does not work as before.

I've been using Fast Startup (Hibernation) with "Shutdown" to get around the problem for over a year now. For whatever reason, the issue manifested itself again today. I originally had the problem on my rMBP on Windows 8.1, but now this is the first time seeing the issue in Windows 10. This time, the CPU usage of "System interrupts" wasn't as high as 30% like it was over a year ago, but more like anywhere from 10 to 20% between "System interrupts" and "System and compressed memory" processes, once again causing battery to plummet rapidly.

I decided to try and upgrade the Intel graphics driver and it seems to have fixed the problem.

To upgrade the Intel graphics driver, I went into Device Manager -> Display Adaptors -> Intel Iris Graphics 5100 -> Right click -> Properties -> Driver tab -> Driver version was 10.18.15.4256 -> Click "Update Driver" -> Click "Search automatically for updated driver software".

That downloaded and installed a new driver. New driver version is 20.19.15.4331. CPU usage for both "System interrupts" and "System and compressed memory" are now 0% and battery time remaining is back to normal.

Hope this helps anyone else seeing this issue again.