Yosemite slowing down Macbook Pro

I have the same problem with a mbr 2012, the Ram is full.

Hi,

I'm not sure what this process is doing exactly but it IS certainly important so you should try to WAIT for it to COMPLETE before trying my trick

If you did not, try reset SMC and PRAM before anything else

-move "lsuseractivityd" FROM "HDD/System/Library/CoreServices" TO your Desktop;

-delete the one in CoreServices

-log out/reboot (loging out may take a little longer than usually)

-DONE !! =>Process did not launch, no fan speeding up, no log filled with lsuseractivityd and no more heating up (in my case !!) I'm not sure for the RAM issue

If you put back the exec file in coreservices, process will startup immediately.

I did this twice and it seems to work fine.

BUT THIS IS NO LONG TERM SOLUTION and may be no solution at all if the process is (one of) the final step(s) of Yosemite install as I have read somewhere.

I'm using Yosemite on a late-2009 Macbook Pro. Dual-core Intel 2.53GHz. I've been clocking some applications, like Mail, and they're actually operating faster than before. Understand, I'm still skeptical of any claims following Apple's refusal to cop to ultra-hot operations with Lion and Mountain Lion installed. But I really think Yosemite improves processing time.

The problem I'm having is a crazy cursor that's especially pronounced when filling in certain bloggish webforms and in Mail. It's pretty annoying to have text characters and spaces flying all over the place, having to be deleted and the correct text having to be inserted where it wasn't. It's happening as I type. Hey, Apple, what gives?

Same problem here:

MacBook Pro (Retina, 15-inch, Mid 2014)

2,2 GHz Intel Core i7

16 GB 1600 MHz DDR3

Was running SUPER fast under mavericks.

I've tried all the public betas and when the GM came out, the windowserver still made the whole computer get laggy.

the most "laggy" experience is when I try to use mission control.

In general, everything is looking slower...

My RAM usage is not that high but I am surprised to see the system uses 18+go of virtual memory. Is this supposed to be normal as I still have lots of physical RAM available???

Now I'm running the final version of Yosemite and the problem is still present. Apple please provide us with a solution. My 1 month old mbp is really not worth the price anymore 😟

maybe worth to tell: for me, a reboot fixes the speed issue for a while, then it becomes slow again after a few hours...I have no idea what the **** I can do to fix this problem once for all!

I had the same issue after installing Yosemite, and I didnt know what it was. I was going crazy! I was going to reinstall Yosemite but then I hear that the installation had problem, even though there was no problem for me.So I began to research and I found out that it was Filevault encrypting the files, since in the setting up process of Yosemite it asked me to turn on FILEVAULT! NEVER AGAIN! it got stuck and it wouldnt even move! so I started researching in here and I found a solution.

Go to Utilities

Disk Utilities

Then clik on ur drive

then file the stop/turn off encryption

and then itll start decrypting the files, and ittook about 3-4 hrs but after that my comp went back to normal.

I had the same issue after installing Yosemite, and I didnt know what it was. I was going crazy! I was going to reinstall Yosemite but then I hear that the installation had problem, even though there was no problem for me.So I began to research and I found out that it was Filevault encrypting the files, since in the setting up process of Yosemite it asked me to turn on FILEVAULT! NEVER AGAIN! it got stuck and it wouldnt even move! so I started researching in here and I found a solution.

Go to Utilities

Disk Utilities

Then clik on ur drive

then file the stop/turn off encryption

and then itll start decrypting the files, and ittook about 3-4 hrs but after that my comp went back

UNFORTUNATELY, I've installed Yosemite in my mid 2011 iMac (8 GB of memory) and in two top of the line MacBook Pro (one is Late 2012 with 4 GB of memory and a Late 2013 with 16 GB of memory). The 3 computers are very slow now. Memory Cleaner app gets the memory back but after a while it's AGAIN down to less than 1 GB in all of them.

Like iOS 8.0.1 update that's another not ready and/or not enough tested Apple software launch. What really bothers me is that it seems not to care about us and the harm we have in our computer-based activities. It's always about money, profits, share value, etc.

Hi Per,

After trial and error with a bunch of my applications, I found that Little Snitch was the culprit on my system too - causing Window Server to run at around 80% or more CPU.

I found that it wasn't necessary to disable Little Snitch entirely - just the feature where it displays network activity in the menu bar icon. It seems that updating that icon regularly is causing the high CPU usage in Window Server.

Rich

For a moment I was overjoyed reading your reply since I have Little Snitch too... but I've always disabled that icon since Mountain Lion :/ So, no dice.

I wanted to get back to you all with an update on my progress with this issue. I had to restore back to Maverick just to get my system back to usable condition. After repairing permissions and resetting PRAM and SMC, I tried updating again. I have been running Yosemite for about a day now and my system is running like it did on Maverick, if not a tad bit better.

For those still running into problems, I would recommend filing a bug report with Apple at http://bugreport.apple.com/. I filled a bug and had someone get back to me within a day. They asked me to submit some information to go along with my report:

Please attach the output of 'sysdiagnose' collected while the problem is occurring or if not possible taken after the issue has occurred. 'sysdiagnose' can be triggered by pressing Cmd-Opt-Ctrl-Shift-Period, and it may take a few minutes to complete. When ready, the output will automatically be revealed in a Finder window (or it can be manually retrieved from /var/tmp). Please note that you may need to zip the file if you are having any issues uploading to the bug reporting website.

Wish you guys luck. If I run into issue again I will post here.

Having same issue. All the memory is used up with no major application running.

When I took this screen shot, Only application running are safari and activity monitor.

im on a MBA 11" early 2014, ive been running for ablout 17 hours without shutdown since the update and im still getting stable temperatures and usage. nothing seem out of the ordinary with my usage on anything. from what im reading is that these problems are happening mainly on MBP devices. with multiple applications running, im getting a pretty stable usage of about 23% between the user and the OS so things seem to be in order. ill update if any problems arise.

note: my battery life EXPECTANCY has INCREASED to roughly 9 hours since the update and im not having the charging status problem people have been reporting.

CPU: I5 4260u @1.4GHz

4Gb ram

120Gb ssd

Intel HD 5000 graphics 1.5Gb vram (holy ****, might be an error with the os though)

As mentioned above, following the steps set out at Guide: How to solve Yosemite memory leaks and CPU usage completely fixed my problem with the WindowServer process.

The Little Snitch network monitor does have a larger impact on that process than under 10.9 but only when the monitor is being displayed or the 'Show network activity in the menu bar' option is set. this can be avoided by unchecking that option and setting the network monitor to auto-hide. However, even with network activity showing in the menu bar and the monitor onscreen, in practice, I did not experience any of the sluggishness I had before following the steps set out in the above link.

I can't comment on whether this helps with processes other than WindowServer but, given the dramatic improvement it made to my Mac, it would be well worth a try.