Snow Leopard performance slow...

Hi all...

I have a MacBook Pro and installed Snow Leopard over Leopard just yesterday. While the install ran fine and I have had no major issues, I have noticed a substantial slowing of my computer's performance. It's as if the processor is busy or memory is full. Everything happens as it should, but just a lot slower than before. For example, I have expose set to occur when I move the mouse to the upper-left corner of the screen. Before, expose occurred immediately. Now, it will occur after a 0.5-2.0 second lag. Many other apps are slower, such as Firefox, MS Excel, and MS Entourage. Adium also took about 2-3 times as long to launch, though I run it continuously and have had no further problems. In general, I get the pinwheel a lot more, as well as the ticking watch.

I was under the impression that Snow Leopard would improve performance, not slow it. Has anyone else had these issues as well? If so, did you find any way to resolve it?

- Jason

Owner of MacBook Pro, 2.33 GHz Intel Core 2 Duo, 3 GB RAM. I have other macs but I'm going to wait to upgrade the OS to Snow Leopard.

MacBook Pro 17", 2.33 GHz, Intel, Mac OS X (10.6), 3 MB RAM

Posted on Aug 30, 2009 6:47 PM

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113 replies

Aug 31, 2009 12:13 PM in response to JasonWDC

I bought SL yesterday and put it on iMac and MacBookPro. Nearly everything is at a crawl.
This is oppose from what I expected. Ex. I drag a picture from the desktop to the trash. The trash can appears from the hidden dock and remains visible for three seconds. After that time I hear a click of the picture going in the trash. This used to be instantaneous. Trying to move a window around the screen doesn't happen immediately. I have to wait until the window becomes "moveable." This is a mess.

Aug 31, 2009 2:19 PM in response to JasonWDC

To all who've replied, thanks for adding your input. For those that have asked questions or want to know how I'm fairing on Day 3, here goes:

- Slowness has improved. A few reboots here and there seems to help a lot.
- The first few uses of an app, or an app's features, will be slow but subsequent uses are faster. One user mentioned a drag-and-drop to trash can. The first time for me the same thing happened but now it's faster and working like it was before.
- Expose is also working normally though I'm undecided on the new layout. SL thinks it knows what you're using more or less of and makes the corresponding pictures of the apps respectively small or large. They're also no longer proportional to their actual size, which is a problem for me. I tend to make my less important windows smaller (like Adium, iTunes, Citrix list of apps) and my more important windows larger (Excel, Word, Entourage, Firefox, etc).

Problems still...
- MobileMe seems to run forever. Nearly everytime I look at the sync icon, it's spinning. It eats up CPU (and battery). I've un-checked Entourage calendar from the sync because that seemed to be messed up, and I noticed a missing card in address book.
--> On a side note, keeping all my lists in sync has become a nightmare so if anyone has any pointers on a good resource who I can call on to get it all set up right (Entourage, MobileMe, iPhone, Google Apps), that'd help a lot.

Otherwise, all has been running fine. I can't say (yet) that anything is running faster than before, but at least it isn't as slow as before.

Thanks again to all for adding your input. Keep it up!

- Jason

Aug 31, 2009 2:22 PM in response to jmd1033

I tried that as well as reducing the number of items that MobileMe must sync. No luck! I also noticed my calendars are way out of sync as well. New appointments missing in Entourage, and old appoints now appearing on iPhone. I have discontinued syncing Entourage, but this still means iPhone, iCal, and Google app's Calendar is still trying to sync.

I'm completely baffled at how to fix Mobile Me anymore. I rarely get the results I want; it's just too unreliable with any more than one or two lists syncing.

Aug 31, 2009 3:37 PM in response to JasonWDC

In regard to the MobileMe slowness...

Some users on this thread have suggested doing a "Repair File Permissions" as well as a log out and log back in to the MobileMe account. +It worked for me!+ Here's exactly what I did:

1) Quit all applications (do the right-click on the icon in dock and choose quit). Yes, every last one of them. Only Finder, Activity Monitor, System Preferences, and Disk Utility were running.
2) Stop or Cancel any existing sync that may be in progress.
3) Log out of Mobile Me in System Preferences.
4) In Disk Utility, click Repair File Permissions. (It only took about half as long as it thought it would take.)
5) System->Restart. I quit any auto-launch apps, like Ding! for Southwest.
6) For good measure, I ran Repair Disk Permissions one more time (same results).
7) Logged back in to Mobile Me via System Preferences. It gave me a warning about not using the same name in two different computers, you can bypass/override this warning.
8) You'll be asked if you want to replace in either direction, or merge. I just chose merge and I can clean up the mess later.
9) Sync begins, and it will take a while. But, it does complete and I had only one conflict (a recurring appointment on my calendar from last year).

Sync now runs in a snap like usual and no problems. I'm sure there will be some cleanup but at least it's working again!

As for the opinions on Snow Leopard, I'll remind everyone that this experience, while somewhat annoying, is leagues better than doing a Windows upgrade (some of you remember those days). Did you know that some Windows upgrades require completely new installs? That means you can't upgrade over the existing; you have to literally wipe the drive and start over. How much would that suck!?

Not that I want to bash on Microsoft, just trying to help everyone gain some perspective on how much more of a hassle it could be.

Sep 2, 2009 12:13 AM in response to Jensen Gelfond

Jensen Gelfond wrote:
Doctor_X wrote:
I had the slowdown issue upon upgrading as well. I just deleted the file /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist and my Mac is back to blazing speeds. Many thanks!


What is it that prompted you to try this troubleshooting technique?


Hey, whatever it was, I tried it and it worked like a charm. CoreAudio was taking up more than a Gig (1.3GB) of the RAM on my MacBook3,1 (2GB RAM). Weird thing is, there was no problem with my iMac at all. CoreAudio on that machine only takes up 2.2MB.

Gonna tweet this fix for sure.

Sep 3, 2009 10:19 PM in response to JasonWDC

I think I've figured what CoreAudio does. After deleting the file from my macbook, i realised that it doesn't make system sounds anymore, like the crumpling paper sound of Emptying Trash, the "spring" of placing a new item into a folder, etc. Will try copying the coreaudio plist file from my iMac (which doesn't suffer from the performance slow-down problem) to my MacBook and see if it works. Wish me luck.

Sep 8, 2009 9:43 AM in response to monstar-x

My system feels very slow too, but when I look at the Activity Monitor it doesn't look like anything is hogging resources at all. I have a suspicion that it's something to do with MS Office 2004, VM Ware Fusion, and/or Firefox. It's a Core2Duo MacBook with 4GB of ram and around 30GB free of disks pace. Every program (Pages '08, Entourage, iTunes, Numbers, Everything) just feels like it's lagging and moving through molasses.

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Snow Leopard performance slow...

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