Photos app causing very high cpu usage

I'm having exactly the same problem.

MacBook Air (11-inch, Mid 2012)

2 GHz Intel Core i7

8 GB 1600 MHz DDR3

Intel HD Graphics 4000 1024 MB

It's iPhoto processing your photos for 'faces' and 'places' after import. It may take minutes to hours depending on the number of photos. Or so I read...

High CPU usage will eventually stop as soon as all images in both Photo apps are merged successfully, This happened to me with a very small iPhoto library about 10 GiGs...

Yosemite handles memory differently than previous OS versions. It tries to keep active processes in RAM memory by compressing same and by ending/deleting(killing) processes that are not in use -- before it puts anything in Virtual memory.

Personally after finding documentation on Yosemite and the change in memory usage - decided the hidden cost of free is just not worth it.

You may want to get a docking port or stand for your lap top that will keep it cool during the process.

So give feedback to apple at http://www.apple.com/feedback/

Right, I'm talking about the Photos App.

You will get high CPU usage when you convert your iPhoto library to a Photos app library.

Then after the conversion is complete and the library opens, you'll get high CPU usage again as the Photo app processes 'faces'. But it doesn't tell you its doing this so it appears to be a bug.

If your mac is crashing, then its probably some other problem. High CPU usage is not going to force your Mac to reboot unless you have a hardware problem or conflict with some other software installed on your machine.

The point is this... the high CPU usage is normal. It should be happening.

The larger the library, the longer it will last. My 8 core machine several hours to process one of my 8 libraries, after it was converted.

The CPU should throttle if it gets too hot. It should not crash or require a stand to keep it from over heating. Again, that goes back to a hardware problem.

I have the same issue too. I've got a Mid-2009 MacBook Pro with SSD and 8GB of RAM. Whilst everything is running very well the various processes are causing CPU usage of 50%-60% and the bonus feature of turning my Mac into a mini furnace.

I have approximately 40,000 photos in iCloud stored on my iMac, with no photo library at all to migrate over on this machine.

Not sure if the same thing should be happening, but it's absolutely ridiculous - the app isn't even open for God sake!

Same issue.

LOADED 15" MBP Retina 16GB RAM, etc.. It's crushing my CPU.

I also noticed that when I deleted things from my Photos app, they were still in the original iPhoto library. I had to open iPhoto & remove them from there, too.

Loxx

Photos runs a different library to iPhoto (Photos Library vs iPhoto Library) so they are separate and changes you make in either will not copy across. It's essentially two completely different libraries at this point.

"It's crushing my CPU."

That's what it should be doing. The Photos app is designed to use all CPU cores and the dedicated GPU to perform it's tasks.

I think what people are missing here is that the Photos conversion process is performed in two steps:

1. Photos creates a new library from your old iPhoto library. Once that's complete the Photos library opens and can be used.

2. But... the conversion process is not complete. Photos then silently processes 'face detection' across your entire Photos library in the background. This is what causes the high CPU usage. This process can take several minutes to hours depending on the number and size (megapixels) of your photos.

I have the same 15" Retina MBP with 16GB and it took several hours for the Photos app to process a library of 5000 (20 megapixel) photos. Now everything is fine.

I have a dozen Photo libraries and each had to go through the same process.

"but it's overloading the CPU causing the machine to heat up and reboot... There's no hardware problem. This started after the 10.3.3 update and use of the Photos app unfortunately."

The computer should heat up if its performing a large task; in this case Photos 'face' detection. But the heat should not cause it to reboot. The CPU will automatically throttle itself to prevent damage. Sounds like you have another issue.

Have you checked the crash logs?

Did you verify and repair permissions on your boot drive with Disk Utility before installing 10.10.3?

"I have approximately 40,000 photos in iCloud stored on my iMac, with no photo library at all to migrate over on this machine."

You may find this article useful.

http://www.imore.com/how-use-photos-os-x-multiple-macs

If you store everything in the cloud, all or a portion of your your photos will still be stored locally on your Mac (see article). In any case, I suspect Photos will run 'face' detection on your entire library even if it's in the cloud. Depending on the speed of your connection that processing will take even longer than if all of the photos are stored locally.

I am also having the same issue with the CPU causing my MAC Book Pro to run very hot. This is after upgrading to the new Photo App this morning. It's something wrong with the update. I am not having any issues with the hardware. I just had my Logic Board replace and it was working great. I noticed in Activity Monitor that the Photo App was still running in the background. I closed the Photo App and forced to quit the process. There is bug in the new update for Photo migration. Also, noticed the my NAS is not mapping like it did before this latest update. Now, I have to go into Finder and click on the name and it will pop open. It's similar problem that occurred ounce before. When you connect to external NAS. It's another SMB issue now with this update.