Yosemite 10.10.5 excessively slow

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Yosemite 10.10.5 excessively slow

Since I updated my 2011 27 inch iMac to Yosemite 10.10.5 I have been noticed that the system is so slow, when I turn the iMac on, it lasts like 5 - 10 min to start up.

When Yosemite finally starts up, it gets stuck and there is nothing else to do about it, according to the Activity Monitor the CPU is on 100% of use and the task that is consuming the most is the kernel task. My iMac has an Intel Quad Core i5 3.1 Ghz and 12Gb of RAM 1333 MHz DDR3 with a 1Gb DDR5 AMD Radeon graphic memory. I was in Yosemite 10.10.4 but since I have updated, it has been extremely slow that I am not able to do anything because of the slow system. Even when I try to switch from Mac to Windows at the start up, its taking a lot time to load the disk partitiin

iMac, OS X Yosemite (10.10.5), Mid 2011

Posted on Aug 30, 2015 9:24 AM

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Answer 1

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dominic23

Level 10

83,904 points

Aug 30, 2015 10:56 AM in response to drade72

Select Macintosh HD as the Startup Disk.

“Set the default startup disk” http://support.apple.com/kb/HT1310

Reset PRAM. http://support.apple.com/kb/PH18761

Reset SMC. Choose the appropriate method.

https://support.apple.com/en-us/HT201295

Start up in Safe Mode. http://support.apple.com/en-us/HT1564

If this doesn't help, run EtreCheck and post the report here please. http://etresoft.com/etrecheck

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Answer 2

Aug 30, 2015 10:55 AM in response to drade72

Please download and install EtreCheck from http://www.etresoft.com/etrecheck

Run it and post the report here.

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Answer 3

Linc Davis

Level 10

209,535 points

Aug 30, 2015 2:19 PM in response to drade72

When you see a beachball cursor or the slowness is especially bad, note the exact time: hour, minute, second.

These instructions must be carried out as an administrator. If you have only one user account, you are the administrator.

Launch the Console 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.

☞ Open LaunchPad and start typing the name.

The title of the Console window should be All Messages. If it isn't, select

SYSTEM LOG QUERIES ▹ All Messages

from the log list on the left. If you don't see that list, select

View ▹ Show Log List

from the menu bar at the top of the screen.

Each message in the log begins with the date and time when it was entered. Scroll back to the time you noted above.

Select the messages entered from then until the end of the episode, or until they start to repeat, whichever comes first.

Copy the messages to the Clipboard by pressing the key combination command-C. Paste into a reply to this message by pressing command-V.

The log contains a vast amount of information, almost all of it useless for solving any particular problem. When posting a log extract, be selective. A few dozen lines are almost always more than enough.

Please don't indiscriminately dump thousands of lines from the log into this discussion.

Please don't post screenshots of log messages—post the text.

Some private information, such as your name, may appear in the log. Anonymize before posting.

When you post the log extract, you might see an error message on the web page: "You have included content in your post that is not permitted," or "The message contains invalid characters." That's a bug in the forum software. Please post the text on Pastebin, then post a link here to the page you created.

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Answer 4

drade72 Author

Level 1

0 points

Aug 31, 2015 6:00 AM in response to Linc Davis

Here is the link with the error log messages:

http://pastebin.com/fskrEzZu

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Answer 5

drade72 Author

Level 1

0 points

Aug 31, 2015 6:15 AM in response to dominic23

Here is the EtreCheck's report:

Problem description:

Extremely slow when i updated from OS X 10.10.4 to 10.10.5

EtreCheck version: 2.4.1 (137)

Report generated 8/31/15, 8:13 AM

Download EtreCheck from http://etresoft.com/etrecheck

Click the [Click for support] links for help with non-Apple products.

Click the [Click for details] links for more information about that line.

Hardware Information: (What does this mean?)

iMac (27-inch, Mid 2011) (Technical Specifications)

iMac - model: iMac12,2

1 3.1 GHz Intel Core i5 CPU: 4-core

12 GB RAM Upgradeable

BANK 0/DIMM0

2 GB DDR3 1333 MHz ok

BANK 1/DIMM0

Empty

BANK 0/DIMM1

2 GB DDR3 1333 MHz ok

BANK 1/DIMM1

8 GB DDR3 1333 MHz ok

Bluetooth: Old - Handoff/Airdrop2 not supported

Wireless: en1: 802.11 a/b/g/n

Video Information: (What does this mean?)

AMD Radeon HD 6970M - VRAM: 1024 MB

iMac 2560 x 1440

System Software: (What does this mean?)

OS X 10.10.5 (14F27) - Time since boot: less than an hour

Disk Information: (What does this mean?)

ST31000528AS disk0 : (1 TB) (Rotational)

EFI (disk0s1) <not mounted> : 210 MB

Macintosh HD (disk0s2) / : 748.35 GB (699.28 GB free) - 12 errors

Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB

BOOTCAMP (disk0s4) /Volumes/BOOTCAMP : 251.00 GB (17.87 GB free)

OPTIARC DVD RW AD-5690H ()

USB Information: (What does this mean?)

Apple Inc. FaceTime HD Camera (Built-in)

Logitech USB Optical Mouse

Apple Inc. BRCM2046 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Internal Memory Card Reader

Apple Computer, Inc. IR Receiver

Thunderbolt Information: (What does this mean?)

Apple Inc. thunderbolt_bus

Configuration files: (What does this mean?)

/etc/sudoers - Modified

Gatekeeper: (What does this mean?)

Mac App Store and identified developers

User Login Items: (What does this mean?)

None

Internet Plug-ins: (What does this mean?)

Default Browser: Version: 600 - SDK 10.10

QuickTime Plugin: Version: 7.7.3

3rd Party Preference Panes: (What does this mean?)

None

Time Machine: (What does this mean?)

Time Machine not configured!

Top Processes by CPU: (What does this mean?)

2% fontd

2% WindowServer

0% taskgated

0% askpermissiond

Top Processes by Memory: (What does this mean?)

590 MB kernel_task

246 MB com.apple.WebKit.WebContent(2)

86 MB mdworker(7)

61 MB mds_stores

61 MB Safari

Virtual Memory Information: (What does this mean?)

9.29 GB Free RAM

2.71 GB Used RAM (1.33 GB Cached)

0 B Swap Used

Diagnostics Information: (What does this mean?)

Aug 31, 2015, 08:02:48 AM Self test - passed

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Answer 6

Linc Davis

Level 10

209,535 points

Aug 31, 2015 7:02 AM in response to drade72

Please back up all data, then open the iCloud pane in System Preferences. If the box marked iCloud Drive is checked, uncheck it and confirm. Your iCloud data should be preserved on Apple's servers.

Test to see whether there's an improvement, then re-check the box and test again. It may take a noticeable amount of time for your iCloud Drive data to resynchronize.

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Answer 7

Eric Root

Level 10

684,015 points

Aug 31, 2015 1:01 PM in response to drade72

/etc/hosts file - Fixing a hacked

You are getting hard drive errors.

Do a backup, preferable 2 separate ones on 2 drives. Boot to the Recovery Volume (command - R on a restart or hold down the option/alt key during a restart and select Recovery Volume). Run Disk Utility Verify/Repair Disk and Repair Permissions until you get no errors.

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