Severe performance degradation vs Mavericks

It may sound noobish, but how can i see my spotlight current level of indexing. Back in Mav you could click the search icon and see a progress bar. I am asking because i re-run the indexing command from terminal (just in case something went wrong after the update) and i'd like to see..how it's going.

One thing that has worked for me (but isn't an optimal solution) was to 'Reduce Transparency' in Accessibility settings within System Preferences. Things are looking smoother on integrated graphics, as you would expect. It's still ridiculous that this is an issue. My friend has Iris graphics on his brand new 13" rMBP and his is similarly laggy on the default settings.

I concur. My late 2012 21" iMac w/8 GB RAM is running MUCH slower after "upgrading" to Yosemite from Mavericks. I ran several utilities to get rid of "clutter" and reset the PRAM, but nothing helps. Apple are you listening?

I noticed that after upgrade video ram of my rendering GPU is pretty much full. around 400-600MB free out of 3GB and I only run chrome and VLC at the moment. The second GPU is jumping from 100% free to 0% free every few seconds. It's very very strange. Very choppy animations, running mac pro 2013 6-core, 32GB RAM 2xD500 512GBSSD. This computer is becoming too slow for me... 😟 Apple do something... quick.

Well NJAnalyst, you can concur all you want, but that won't help you. And I doubt if Apple's listening/monitoring all these threads. You could use the official Apple feedback website, then they will listen.

Have you tried the performance in another account on your Mac? In beta I've seen others having performance-problems after they installed Yosemite over Mavericks. Mostly it's a third party-app, that's not yet been update for the new OS, that spoils the party. What they tried was cloning the harddrive and copy it to an external drive and start from scratch with a clean install. When they did a clean install their problems were gone. If that's your experience too then you know the problem is not Yosemite itself.

After clean install you can reinstall your apps and copy your documents back to your Mac of you can use migration-assistent to copy all your stuff into the new install.

That means it is a god **** software problem, not a hardware one. Beside, your Mac Pro shows that not a 'not-enough-resources-problem'. It's just spaghetti code..

Same here. I have a MacBook Pro with 4GB of RAM and 2 GHz Intel Core i7. On Mavericks it was flying around. Photoshop and all the stuff was super fast and animations were all good. Now it's slow. Really, really slow, compared to Mavericks. I need to work on this computer. I don't give a **** about transparent things and stuff and all that blabla. I just wanna be able to get the job done! This update costs me money! Please fix this as soon as possible. It's actually going worse than my PC with Windows7.

I'm really disappointed. An update should make the machine go well..be stable. I got the spinning colored wheel on every (and i mean every) little thing I do. It's frustrating! I'm temped to throw away the Mac out of the window.

Let's all send feedbacks to Apple, the more they get, the quicker this can be adressed! - https://www.apple.com/feedback/

I experienced that too Nikolay, when I first started with Yosemite. But after a few hours it was gone and Yosemite worked fine. Perhaps it has not been smart that Apple does not inform it's customers during the install that the OS needs a bit of time to settle. That could have prevented a lot of frustration and a lot of writing on these forums (at least when people take the effort to read warning in the first place).

I find it hard to believe that there's really a performance-problem at such a large scale when Yosemite's been out as a public beta for month now. Think about it. It makes no sense to me. We would have seen an uprise of the testing masses, wouldn't we?

And if you really think you've got a problem, I agree with Darkkz : sent feedback.

Clean install? Also, i updated somewhere 14 hours ago.. Should i send my Macbook in a vacation? xD

I don't want to be rude..but..my mac was updated today at 9.00 am. Now here in Italy it's 20.02 pm. How much do you think I should wait? And also: how much RAM do you have? I have just 4GB. And it's killing me down here. If you have 16GB, well..i don't thin you'll notice a thing.

4gb is pretty much a bare minimum really. When I upgraded my Mac Mini from 4gb to 10gb I noticed a huge difference.

Would you please tell me why it was flying with Mavericks and now it's all like my grandma's Windows?

Well its possibly still doing internal optimisations for a start. But 4gb is pretty much pushing it for a modern OS anyway. How much free disk space do you have for a start? That may be an issue if the mac cannot create a suitable size paging file