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Upgrade from SL > Poor performance.

A

ArmanUV

macrumors member
Original poster
Jul 15, 2010
87
0
I had good experience with clean installs of lion developer previews on my 2009 iMac. When the GM came out, I upgraded my current Snow leopard partition. Needless to say, the performance is awful. I used Onyx and the Lion beta of Cocktail to run maintenance scripts, repair the startup disk and its permissions, clear the user and system caches and logs, repair launch services and prebindings and rebuild spotlight.
I have iStat menus installed so I'm always monitoring cpu and ram usage. With 70% of ram usage and 10% of cpu usage, I can't watch a low resolution avi file and browse with safari at the same time. Finder is a nightmare and everything else is sluggish at best.

I'm out of ideas. anybody has one?
 
Check for the apps and extensions that are not supported in lion anymore,
delete those and defragment your disk. That should do it.
Of course back up first!
 
Not true. It is supposed to so for files up to 20 mb, but even files in that weight range are all around the place.
It is really easy to check, just run one of your defragmenting tools and check it for yourself, you will be surprised how messy your hard drive is.
 
ArmanUV said:
When the GM came out, I upgraded my current Snow leopard partition. Needless to say, the performance is awful.
Click to expand...

What you describe might be your case, but, quite certainly, isn't mine. You might want to check the particulars of your system.
 
PeterHolbrook said:
What you describe might be your case, but, quite certainly, isn't mine. You might want to check the particulars of your system.
Click to expand...

I second your observations, but I did a different type of "clean" install. Knowing that I have a bit of cruft on my machines, I first backed up my data, performed a clean install of Snowy, installed my apps, then performed the upgrade to Lion. Everything runs really smoothly, but some apps (like GeekTool, for example) are a bit quirky. Safari, no lie, DOES run a lot snappier, thanks to the new javascript engine IIRC. All I know is that it was like a night and day difference between Safari under Snowy and Safari under Lion. I really like Lion, and I think this will be a hugely successful OS for Apple.
 
Lion runs like **** for me as well. iStat doesnt work at all, lion wont let me touch it, i cant even delete it from my dashboard, it just crashes if i scroll over it. i get lag when starting up on my lockscreen and random lag all over the place., chrome runs like **** it takes like 5 or 6 bounces to open, sometimes my dock sticks on the screen (i have it on autohide). I am experiencing SO many bugs! :( on an upgrade from SnowLeopard to the lion GM.

I might as well do a clean install tomorrow when lion is released. I hope the bugs do not come back.
 
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