Lion runs slower than Snow Leopard

We called about our very new Power Mac with 12 cores. We are running Maple on that machine, and less than 2.4% of one CPU is used for our calculations in the Lion 10.7.4 windows mode. The last advisor advised us to install Snow Leopard on the new machine.
We tried that as we had bought a family pack of MacOSX 10.6.3 some time ago and used that for two older machines. But the new machine complained that the installation can not be performed as this version apparently uses a fat binary.
We have also contacted Maplesoft, and they believe that Java and the GUI in Lion may cause the delay in the calculations. They advised us to run in Command Line mode using the nohup feature (In Terminal ending the UNIX command by &). We have tried this and found CPU use of 100% and even higher in parts where parallel processing was used. However, running in the Command Line version of Maple is not attractive, as it takes away most of the interactive response with the program and produces results in linear form that are hard to read.
An old small 2 core PowerBook on which Snow Leopard runs is now our top machine, as long as the problem on the brand new machine is not resolved.
Do you have any further suggestion? We have wasted a lot of time and money on the new Power Mac so far.

Power Mac? Do you mean Mac Pro? Power Macs aren't capable of running anything higher than Mac OS X 10.5.8 Leopard because Snow Leopard and Lion are Intel-only.

Similar Messages

Why does Lion run slower than Snow Leopard?

I recently loaded Lion on my older MacBook Pro 2.2 GHz Intel Core Duo, with 4 GB 677 MHz DDR2 SDRAM. and it runs slower and the it seems to be hotter and consume more battery power. Are the configuration option that can reduce the power drain?

You may have some mildly-incompatible third-party software, or you may be doing tasks that demand a lot of RAM and 4 GB is no longer enough on a system that has double the memory requirements of SL. Or could be something else entirely. Take a look at Understanding upgrade nightmares* for more information and some potential solutions.
* Disclaimer: links to my pages may give me compensation, and should not be taken as endorsement of my services by Apple.

Why does Lion seem slower than Snow Leppard?

Why does Lion seem slower than Snow Leppard?

michaelfromrice lake wrote:
Why does Lion seem slower than Snow Leppard?
It's anyone's guess. Startup and shutdown as well as application launches take longer in Lion than they did in Snow Leopard on the three Macs that I "upgraded," and I also see the spinning beach ball more often than I used to. Add to that the HDMI-related crashes on my Mac mini...
Quite frankly, I have yet to see where I have gained any advantages after upgrading to Lion, and I definititely have problems that I didn't have under Snow Leopard. Of course, all of it must be my fault, as Apple would never ever relase an upgrade that was less than perfect.

Why is Mac OS X 10.7 so much slower than Snow Leopard? It isnt smooth, applications are slow and most dont respond, and dowloads take hours, minutes.

Why is Mac OS X 10.7 so much slower than Snow Leopard? It isnt smooth, applications are slow and most dont respond, and dowloads take hours, not minutes.

Something is seriously wrong with your installation or you are critically low on RAM, like below 2 GB.
How much RAM is in your machine?
Have you tried a Recovery?

PS CS4 seems to run slow under Snow Leopard...

Hello, this is my first post at the forums. I just did some tests and am a bit baffled.
Scenario:
Computer 1:
- New Mac Pro quad xeon running snow leopard and PS extended 10.0.1, 6 gigs of ram with only photoshop running
- opened a 52"x52" 300 dpi image.
- cropped image and the cropping took a bit longer than I hoped for maybe about 3-4 min.
Computer 2:
- Imac Intel core 2 duo with 2 gigs of ram with PS and AI and other apps running
- opened same image
- cropping was faster than the Mac pro.... took about 2-3 min
Any thoughts?
Another Scenario:
Computer 1:
- New Mac Pro quad xeon running snow leopard and PS extended 10.0.1, 6 gigs of ram with only photoshop running
- opened a 2.8 gig 300 dpi image.
- cropped image and got a message saying operation can't be done because out of ram
Computer 2:
- Quad g5 6 gigs or ram
- opened same file
- was able to crop but it took a while.
Any thoughts?
I wanted to see if it's the OS or the Machine but I tried to install 10.5 in the new mac pro and it won't let me.
Just wanted to share been looking around for any info about app speeds.
- Nico

Oops I meant 11.0.1 also to clarify the one running on the imac is PS CS4 standard not extended but the one running on the G5 and Mac pro is Extended.

Is mountain lion slower than snow leopard

Hi i have mac book pro, dual core processor with 4GB Ram. I brought it with Snow Leopad installed. after upgrading to Lion OX i feel drop in performance. I am hesitating to install mountain lion feeling it may slow down more. Can somebody advice on this ?
Thanks & Regards,
Siva.

Hi i have mac book pro, dual core processor with 4GB Ram. I brought it with Snow Leopad installed. after upgrading to Lion OX i feel drop in performance. I am hesitating to install mountain lion feeling it may slow down more. Can somebody advice on this ?
Thanks & Regards,
Siva.

Why does Lion need to be rebooted more than Snow Leopard?

After upgrading to Lion I have noticed that I need to reboot Lion more often than Snow Leopard. Is this just me or is this something others have seen?

I think this is just you. Nevertheless I would install the 10.7.1 update if you have not yet done so. This will improve the stability of Lion somewhat. But before you do that I would reinstall Lion. You may find this will improve things quite a bit especially if you upgraded from Snow Leopard. This will not erase the drive so you won't lose any of your files.
Reinstalling Lion
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alterhatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu.
Reinstall Lion: Select Reinstall Lion and click on the Continue button.
Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.

Since loading Lion, I've experienced much more instability than Snow Leopard. In particular, Mail crashes with regularity, full-screen apps seem to run slower and show the beach ball more often for longer, etc. I'm disappointed with the performance. Any

Since loading Lion, I've experienced much more instability than Snow Leopard. In particular, Mail crashes with regularity, full-screen apps seem to run slower and show the beach ball more often for longer, etc. I love the features, but I'm disappointed with the performance. Any help coming from Apple? I've been sending them so many reports after crashes, that their file must be full!

Summoning max. courage, I did what you advised. Here is the result. What does this tell you? My Lion 7.2 (mid 2011 iMac) has several annoying glitches (which I have so far tolerated through gritted teeth) but none that have actually stopped me working.
BTW, I see several items involving CleanMyMac which I did not know I had. It is generally villified as a trouble-maker. Spotlight can't find an app. or a utility of that name. How can I get rid of what's there please? Just delete?
Last login: Thu Nov 3 20:55:11 on console
Steve-Kirkbys-iMac:~ stevekirkby$ kextstat -kl | awk ' !/apple/ { print $6 $7 } '
com.AmbrosiaSW.AudioSupport(4.0)
Steve-Kirkbys-iMac:~ stevekirkby$ sudo launchctl list | sed 1d | awk ' !/0x|apple|com\.vix|edu\.|org\./ { print $3 } '
Password:
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com.stclairsoft.DefaultFolderXAgent
com.microsoft.office.licensing.helper
com.bombich.ccc.scheduledtask.067493DB-2728-4DF3-87D8-092EF69086E8
com.bombich.ccc
com.adobe.SwitchBoard
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com.sony.PMBPortable.AutoRun
uk.co.markallan.clamxav.freshclam
com.veoh.webplayer.startup
com.macpaw.CleanMyMac.volumeWatcher
com.macpaw.CleanMyMac.trashSizeWatcher
com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae
com.adobe.AAM.Scheduler-1.0
Steve-Kirkbys-iMac:~ stevekirkby$ ls -1A {,/}Library/{Ad,Compon,Ex,Fram,In,La,Mail/Bu,P*P,Priv,Qu,Scripti,Sta}* 2> /dev/null
/Library/Components:
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/Library/Frameworks:
AEProfiling.framework
AERegistration.framework
ApplicationEnhancer.framework
AudioMixEngine.framework
FxPlug.framework
NyxAudioAnalysis.framework
PluginManager.framework
ProFX.framework
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TSLicense.framework
iLifeFaceRecognition.framework
iLifeKit.framework
iLifePageLayout.framework
iLifeSQLAccess.framework
iLifeSlideshow.framework
/Library/Input Methods:
/Library/Internet Plug-Ins:
AdobePDFViewer.plugin
EPPEX Plugin.plugin
Flash Player.plugin
Flip4Mac WMV Plugin.plugin
JavaAppletPlugin.plugin
Quartz Composer.webplugin
QuickTime Plugin.plugin
SharePointBrowserPlugin.plugin
SharePointWebKitPlugin.webplugin
Silverlight.plugin
flashplayer.xpt
iPhotoPhotocast.plugin
nsIQTScriptablePlugin.xpt
/Library/LaunchAgents:
com.adobe.AAM.Updater-1.0.plist
com.sony.PMBPortable.AutoRun.plist
/Library/LaunchDaemons:
com.adobe.SwitchBoard.plist
com.apple.remotepairtool.plist
com.bombich.ccc.plist
com.bombich.ccc.scheduledtask.067493DB-2728-4DF3-87D8-092EF69086E8.plist
com.microsoft.office.licensing.helper.plist
com.stclairsoft.DefaultFolderXAgent.plist
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.DS_Store
Application Enhancer.prefPane
Default Folder X.prefPane
DejaVu.prefPane
Flash Player.prefPane
Flip4Mac WMV.prefPane
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com.bombich.ccc
com.microsoft.office.licensing.helper
com.stclairsoft.DefaultFolderXAgent
/Library/QuickLook:
iWork.qlgenerator
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AppleIntermediateCodec.component
AppleMPEG2Codec.component
DesktopVideoOut.component
DivX 6 Decoder.component
FCP Uncompressed 422.component
Flip4Mac WMV Advanced.component
Flip4Mac WMV Export.component
Flip4Mac WMV Import.component
LiveType.component
/Library/ScriptingAdditions:
.DS_Store
Adobe Unit Types.osax
Default Folder X Addition.osax
/Library/StartupItems:
Library/Address Book Plug-Ins:
Library/Frameworks:
EWSMac.framework
Library/Input Methods:
.localized
Library/Internet Plug-Ins:
Library/LaunchAgents:
com.adobe.AAM.Updater-1.0.plist
com.adobe.ARM.202f4087f2bbde52e3ac2df389f53a4f123223c9cc56a8fd83a6f7ae.plist
com.macpaw.CleanMyMac.trashSizeWatcher.plist
com.macpaw.CleanMyMac.volumeWatcher.plist
com.veoh.webplayer.startup.plist
uk.co.markallan.clamxav.freshclam.plist
Library/PreferencePanes:
.DS_Store
Perian.prefPane
WindowShade X.prefPane
Library/QuickTime:
AC3MovieImport.component
Perian.component
Library/ScriptingAdditions:
Steve-Kirkbys-iMac:~ stevekirkby$

CS5 Design Premium: Will it run faster in Snow Leopard than Lepoard?

I was wondering If CS5 PS will run more quickly in Snow Leopard than it does in Leopards? Is the difference noticeable?

Yes, it can run faster in Snow Leopard, especially in 64 bit.

I am still running OS X snow leopard can my mac book handle the jump to yosemite

I have not updated the OS X because I was comfortable with the set up and honestly too lazy to figure out the quirks of a new system.I am running Snow Leopard 10.6.8   Now my safari browser is completely out of date and I can't view any web pages. Can my mac book pro 2 GHz Intel Core i7 with 4 GB 1333 MHz DDR3 handle the upgrade to OS X yosemite? Or will this just completely slow down the computer?

Upgrading to Yosemite
You can upgrade to Yosemite from Lion or directly from Snow Leopard. Yosemite can be downloaded from the Mac App Store for FREE.
Upgrading to Yosemite
To upgrade to Yosemite you must have Snow Leopard 10.6.8 or Lion installed. Download Yosemite from the App Store. Sign in using your Apple ID. Yosemite is free. The file is quite large, over 5 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
    OS X Mavericks/Yosemite - System Requirements
    Macs that can be upgraded to OS X Yosemite
         1. iMac (Mid 2007 or newer) - Model Identifier 7,1 or later
         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later
         3. MacBook Pro (Mid/Late 2007 or newer) - Model Identifier 3,1 or later
         4. MacBook Air (Late 2008 or newer) - Model Identifier 2,1 or later
         5. Mac mini (Early 2009 or newer) - Model Identifier 3,1 or later
         6. Mac Pro (Early 2008 or newer) - Model Identifier 3,1 or later
         7. Xserve (Early 2009) - Model Identifier 3,1 or later
To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
     Are my applications compatible?
         See App Compatibility Table - RoaringApps.

Is it possible to run Tiger in Snow Leopard using Parallels?

Hey All,
Anyone know if it is possible to run Tiger in Snow Leopard using Parallels?
I am using SPSS 16 and it is not compatible with snow leopard. A temporary fix right now if I partitioned my hard drive and installed Leopard on some extra space to run SPSS. This is kind of annoying because I only need Leopard to use SPSS. I would rather emulate it so I can listen to iTunes and check my email in SL.
What about Panther? I think I even have a copy of Panther to install in Parallels?
I read somewhere that the EULA restricts OS X from being emulated, which seems odd for Mac users who need to test or use old software. I understand though about emulating OS X on windows machine though. I guess they need to blow off the whole foot than just cut off one toe.
Thanks for the thoughts!

From what I can tell, doing this would be, at best, of dubious legality.
Even so, the popular opinion seems to be that it would take some degree of hacking to pull off a virtual machine running OS X. I think that unless you are willing and able to undertake such a task, your best bet is to stick with a partition running an old version or wait for SPSS to be updated for Snow Leopard.
Although...... I have Parallels 4 (current version is 5) and it has an option, when setting up a new Virtual Machine, to install Mac OS X server (see image linked below). Perhaps if you could get a copy of the server edition of the OS you would have more success?
http://img52.imageshack.us/img52/1600/screenshot20100216at110.png
Message was edited by: Iynque

I downloaded Mountain Lion from being on Snow Leopard and lost my entire Office 2004 suite, including Entourage which was my main email server. If I download Office 2008, will I retrieve all my lost Entourage email folders?

I downloaded Mountain Lion from being on Snow Leopard and lost my entire Office 2004 suite, including Entourage which was my main email server. If I download Office 2008, will I retrieve all my lost Entourage email folders?
Other options?

It's not that simple. You didn't lose your Office 2004 suite. Office 2004 won't run in Mountain Lion. You need to update your Office software. You need to purchase either Office 2008 or 2011. Either one can run in Mountain Lion.

Is it possible to upgrade to higher than "snow leopard" directly?

My MacBook is not what it used to be. I've had it for four years now and have not upgraded the OS, so it is still on Leopard. Is it possible - and how much does it cost - to upgrade to higher than "snow leopard" directly? In which case, how do I do it?
Thanks guys!

Hi Maria,
Any newer oSX is going to slow you down, but may be useful, but you need 10.6 & update it to 10.6.78 to go any higher.
You need to get 10.6 & update to 10.6.8 first to be able to buy it from the App Store & download it.
Snow Leopard/10.6.x Requirements...
General requirements
   * Mac computer with an Intel processor
    * 1GB of memory (I say 4GB at least, more if you can afford it)
    * 5GB of available disk space (I say 30GB at least)
    * DVD drive for installation
    * Some features require a compatible Internet service provider; fees may apply.
    * Some features require Apple’s MobileMe service; fees and terms apply.
Which apps work with Mac OS X 10.6?...
http://snowleopard.wikidot.com/
It's been pulled from the online store & Apple Stores, so you have to call Apple to buy it, last I heard.
Call Apple Sales...in the US: 1-800-MY-APPLE. Or Support... 1-800-275-2273
Other countries...
http://support.apple.com/kb/HE57
You have to get 10.6.8 first to go even higher to 10.7 or 10.8

Is it possible to install CS5 or CS5.5 on a 2.4 GHz Intel Core 2 Duo 4 GB 667 Mhz DDR2 SDRAM MacBook Pro running 10.6 (Snow Leopard)?

Is it possible to install CS5 or CS5.5 on a 2.4 GHz Intel Core 2 Duo 4 GB 667 Mhz DDR2 SDRAM MacBook Pro running 10.6 (Snow Leopard)?

Hi Carolyn, thanks for your quick reply. First thing I did before posting my question was to check the system requirements for Creative Suite, both on Apple and Adobe's websites. But I am however confused about the difference between "Multicore Intel processor" vs "Core 2 Duo", and keep hearing stories about CS5 not working properly.

How do I uninstall OS Lion and revert to Snow Leopard

Hi all, I need to use Microsoft Office Mac Version in my work. And OS X Lion don't support that. I am desparate to know how do I unistall the OS X Lion, and revert to Snow Leopard so that I can resume working on my MacBook Pro. Please help.....

MS Office for mac 2004 is indeed incompatible I believe but 2008 onwards isn't. You should consider upgrading your MS Office to be compatible. Apple is not responsible for making 3rd party software compatible with its OS, its the 3rd party developers who updates their softwares and drivers.
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Lion runs slower than Snow Leopard

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