Currently Being ModeratedMay 13, 2012 1:32 PM (in response to rrostad)
If you have more than ten or so files or folders on your Desktop, move them, temporarily at least, somewhere else in your home folder.
If iCloud is enabled, disable it.
Disconnect all wired peripherals except keyboard, mouse, and monitor, if applicable. Launch the usual set of applications you use when you notice the problem.
Launch the Activity Monitor application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ If you’re running Mac OS X 10.7 or later, open LaunchPad. Click Utilities, then Activity Monitor in the page that opens.
Select the CPU tab.
Select All Processes from the menu in the toolbar, if not already selected.
Click the heading of the % CPU column in the process table to sort the entries by CPU usage. You may have to click it twice to get the highest value at the top. What is it, and what is the process? Also post the values for % User, % System, and % Idle at the bottom of the window.
Select the System Memory tab. What values are shown in the bottom part of the window for Page outs and Swap used?
Launch the Console application in the same way as above, and select “kernel.log” from the file list. Post the dozen or so most recent messages in the log — the text, please, not a screenshot.
If there are runs of repeated messages, post only one example of each. Do not post many repetitions of the same message.
Currently Being ModeratedMay 13, 2012 3:53 PM (in response to Linc Davis)
Ok the largest values of the %CPU tab in Activity Monitor constantly fulxuate between:
kernel_task: 1.3% all the way to around 7%
and something called hidd which has values from 1.25%-2.5%
Page Outs: 105.7 MB (0 bytes/sec)
Swap Used: 18.3 MB
And as for the kernel.log commands the latest are:
May 13 14:42:55 localhost kernel: IOSurface: buffer allocation size is zero
May 13 14:40:56 localhost kernel: decmpfs.c:1151:decmpfs_pagein_compressed: err -1
May 13 14:40:56 localhost kernel: /SourceCache/AppleFSCompression/AppleFSCompression-37/Compressors/Zlib/Type4/co mpressorType4Imp.c:343: chunkingDecompressor /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLByteCodes.x8 6_64.bc: error
May 13 14:40:56 localhost kernel: /SourceCache/AppleFSCompression/AppleFSCompression-37/Common/commonUtils.c:265: supplyChunk: error
May 13 14:40:56 localhost kernel: /SourceCache/AppleFSCompression/AppleFSCompression-37/Compressors/Zlib/Type4/co mpressorType4Imp.c:310: fh_getxattr /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLByteCodes.x8 6_64.bc: error
May 13 14:40:56 localhost kernel: /SourceCache/AppleFSCompression/AppleFSCompression-37/Common/commonUtilsKern.c: 346: VNOP_GETXATTR com.apple.ResourceFork for /System/Library/Frameworks/OpenGL.framework/Versions/A/Resources/GLByteCodes.x8 6_64.bc: 5: error
May 13 14:40:42 localhost kernel: disk0s2: I/O error
May 13 14:21:27 localhost kernel: wlEvent: en1 en1 Link UP
May 13 14:21:27 localhost kernel: AirPort: Link Up on en1
May 13 14:21:27 localhost kernel: en1: BSSID changed to c0:c1:c0:ac:08:e1
May 13 14:21:28 localhost kernel: AirPort: RSN handshake complete on en1
May 13 14:30:27 localhost kernel: IOSurface: buffer allocation size is zero
May 13 14:31:56 localhost kernel: IOSurface: buffer allocation size is zero
May 13 14:40:02 localhost kernel: disk0s2: I/O error.
May 13 14:11:57 localhost kernel: disk0s2: I/O error.
May 13 14:21:28: --- last message repeated 36 times ---
Currently Being ModeratedMay 13, 2012 4:21 PM (in response to rrostad)
Your boot drive is failing, or you have some other hardware fault. Back up all data immediately, then make a "Genius" appointment at an Apple Store to have the machine tested.
Back up all data on the internal drive(s) before you hand over your computer to anyone. If privacy is a concern, erase the data partition(s) with the option to write zeros (do this only if you know how to restore, and you have at least two independent backups.) Don’t erase the Lion recovery partition, if present.
Currently Being ModeratedDec 13, 2012 6:02 AM (in response to rrostad)
Certainly the I/O errors suggest a problem with hardware.
The messages relating to AppleFSCompression are usually seen in different contexts, sometimes relating to third party software. However if a problem with hardware has impact on the file system, I guess that the messsages may appear on a relatively clean system.
Currently Being ModeratedFeb 7, 2013 12:34 AM (in response to Linc Davis)
Can you tell me what in the world is going on with my computer!?!?!
Process is Safari Web Content. values: me: 30.25 System: 4.86 Idle 65.17
Page outs: 664 Swap Used: 2.27 GB
It is running extremely slow. I am not only annoyed, but very concerned. Thank you in advance for your help.
Currently Being ModeratedFeb 7, 2013 2:40 AM (in response to ds store)
For users who have no fear of Terminal, here's another good point of reference:
http://diigo.com/0luwa for highlights from Brendan's blog » Top 10 DTrace scripts for Mac OS X (2011-10-10)