[crazeinc]

The 13" MBPro I purchased just a couple of months ago has developed this really ridiculous habit of locking up for .5-1 second doing things like browsing the web, listening to iTunes, or watching a video.

For instance: I have a 1.5 minute mov file that will freeze 4 times during the movie with zero other applications running. I have 80% cpu idle and 2G of ram available while the video is running, so there's absolutely no reason this should be happening.

I've tried uninstalling newer applications and installed the 1.0 Performance Update, but nothing seems to make a difference.

I'm getting really frustrated with this, my 3-year old Macbook didn't pull this crap.

[ibook_steve]

Something is interfering with your performance. Have you checked Activity Monitor to see if anything is using excessive CPU usage even if it was something you didn't launch (some background process or something else)?

Also try disabling wireless networking and disconnecting all external peripherals. See if this fixes it. Then you can try to figure out what is causing the performance drop.

Steve

[crazeinc]

I actually just did a full 10.5.8 reinstall and it's still doing it, consider me truly disappointed, I've been using Macs for the better part of a decade.

for further clarification, there's nothing hooked up to this laptop.

[ibook_steve]

Did you try turning off wireless?

Steve

[dowNNshift]

Sounds like energy saver is running rampant.
The new notebooks have numerous power saver features, review the settings in System Preferences. Make the hard drive stay powered on, any better?

Reset your PRAM, any change?

It's good your likely still under your Apple Limited Warranty... worst case the logic board or hard drive would need replacing.

[Daracle]

I had this issue with my machine as well and all went away when I installed the Performance Update that was put out a couple of weeks ago.

It is a relief to have my issue cleared up.

They do have an article for 10.5 but this is the one I installed.

Performance Update

[kylef]

Originally Posted by dowNNshift 

Sounds like energy saver is running rampant.
The new notebooks have numerous power saver features, review the settings in System Preferences. Make the hard drive stay powered on, any better?

Thanks for this - I was about to post a thread myself. I'd ran the hardware test; un-installed programs; stopped processes; checked in activity monitor and nothing was stopping my MacBook from running quite slowly. Having unchecked that option, everything is as fast as it was beforehand.

[crazeinc]

Originally Posted by dowNNshift 

Sounds like energy saver is running rampant.
The new notebooks have numerous power saver features, review the settings in System Preferences. Make the hard drive stay powered on, any better?

Wow, thank you so much, this appears to have been the cause. Apple must have made this far too aggressive to get that 7-hour battery life figure.

[crazeinc]

I wonder if this doesn't come up more often because only 13" mbpro owners with 5400rpm drives notice the delay.

[dowNNshift]

You're welcome!

[NeverTriedApple]

For what its worth. Mine is July '09 13" MBP. Must admit I replaced hard disk with SSD immediately after purchase but had 'Put the hard drive to sleep when possible' option ticked at all times, even after upgrading to SL. No delays. Must be slow waking hard drive.