OS X is not smooth and very offten loading

Last week I made clean install of OSX (El Capitan) also with format HDD.

After install, system gone smootly for few days. Then I copied some files from backup (maybe 100GB of itunes media) and next day system was very slow. After reboot or wake up mouse cursor still rolling (beachballing) for 5-10 minutes and then after every operation (every mouse click) cursor rolling (beachballing) from 10 seconds to 5 minutes.

I couldn't do nothing.

Therefore I made clean install one more time 2 days ago and system go smooth again - still without my data from backup, only clean install with nothing.

I tried Apple Hardware Test (AHT) before boot. Everything was OK.

I tried some diagnostic tools for test HDD and system (DriveDx, EtreCheck). DriveDX find some problem with sector on HDD with SMART, but I don't know if it is that problem.

Do you have any idea, where is problem?

I send report from EtreCheck:

EtreCheck version: 3.0.4 (308)

Report generated 2016-09-22 00:05:35

Download EtreCheck from https://etrecheck.com

Runtime 1:59

Performance: Excellent

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

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

Problem: Beachballing

Hardware Information: ⓘ

iMac (21.5-inch, Late 2012)

[Technical Specifications] - [User Guide] - [Warranty & Service]

iMac - model: iMac13,1

1 2,7 GHz Intel Core i5 CPU: 4-core

8 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

4 GB DDR3 1600 MHz ok

BANK 1/DIMM0

4 GB DDR3 1600 MHz ok

Bluetooth: Good - Handoff/Airdrop2 supported

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

Video Information: ⓘ

NVIDIA GeForce GT 640M - VRAM: 512 MB

iMac 1920 x 1080

System Software: ⓘ

OS X El Capitan 10.11.6 (15G31) - Time since boot: about one day

Disk Information: ⓘ

APPLE HDD ST1000LM024 disk0 : (1 TB) (Rotational)

EFI (disk0s1) <not mounted> : 210 MB

Macintosh HD (disk0s2) / : 999.35 GB (971.14 GB free)

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

USB Information: ⓘ

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. FaceTime HD Camera (Built-in)

Thunderbolt Information: ⓘ

Apple Inc. thunderbolt_bus

Gatekeeper: ⓘ

Mac App Store and identified developers

System Launch Agents: ⓘ

[not loaded] 6 Apple tasks

[loaded] 149 Apple tasks

[running] 83 Apple tasks

System Launch Daemons: ⓘ

[not loaded] 48 Apple tasks

[loaded] 148 Apple tasks

[running] 94 Apple tasks

Launch Daemons: ⓘ

[loaded] com.adobe.fpsaud.plist (2016-08-30) [Support]

Internet Plug-ins: ⓘ

FlashPlayer-10.6: 23.0.0.162 - SDK 10.9 (2016-09-20) [Support]

QuickTime Plugin: 7.7.3 (2016-07-09)

Flash Player: 23.0.0.162 - SDK 10.9 (2016-09-20) [Support]

Default Browser: 601 - SDK 10.11 (2016-07-09)

3rd Party Preference Panes: ⓘ

Flash Player (2016-08-30) [Support]

Time Machine: ⓘ

Time Machine not configured!

Top Processes by CPU: ⓘ

24% com.apple.WebKit.WebContent(6)

7% WindowServer

3% Safari

2% fontd

1% kernel_task

Top Processes by Memory: ⓘ

1.34 GB com.apple.WebKit.WebContent(6)

750 MB kernel_task

188 MB mdworker(15)

180 MB system_installd

139 MB softwareupdated

Virtual Memory Information: ⓘ

1.57 GB Free RAM

6.43 GB Used RAM (3.32 GB Cached)

40 MB Swap Used

Diagnostics Information: ⓘ

Sep 20, 2016, 09:04:08 PM Self test - passed

I find similar problems here:

http://forums.macrumors.com/threads/at-my-wits-end-with-my-beachballing-imac-sug gestions.1956948/

http://forums.macrumors.com/threads/beachballing-after-any-action.1956503/#post- 22572555

Luis, I backuping my data only manually to external HDD without applications. Only data + itunes profile + appetrure library, ...

I copied music files and itunes profile back to clean install.

I posted result from these diagnostic tools, wchich I done last week:

SMART Utility

DriveDx

It seems, that is some problem with HDD - PENDING BAD SECTORS (id 197) - 32 bad sectors. But there was in last week.

Yesterday I tried repair it - I formatted my HDD with secure formating with "7-Pass Erase" option - http://main.makeuseoflimited.netdna-cdn.com/wp-content/uploads/2012/07/secure-er ase.png?323f2c

It took about 24 hours and after that I done tests with same tools as before:

• EtreCheck
• SMART Utility

DriveDx

Results from SMART Utility and DriveDx seems better than before. There was 32 bad sectors with id 197 (see my previous reply's attachment) and now there is only 1 bad sector with id 197 (see attachments in this reply).

Do you still think, that my problem with beachballing is in HDD and I should replace it?

When I had problem with beachballing (after install I still have without problem, but still only clean osx without data from backup) it stop play music from iTunes or movies in VLC for a while during beachballing. But what I forgot to mention, that also stop music from youtube or spotify in web browser. Is could be problem with HDD when stop play from browser - not from HDD?

I still thing, that could be problem with RAM memory. I post you report from EtreCheck after fresh instal and formating with "7 pass errase" and fresh install OSX. You see, that I have only 660 MB free RAM. It is too litle for 8GB RAM after fresh install systems without any application.

Please write me your opinion. Thank you very much.

EtreCheck version: 3.0.5 (309)

Report generated 2016-09-25 18:55:29

Download EtreCheck from https://etrecheck.com

Runtime 1:23

Performance: Excellent

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

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

Problem: Beachballing

Hardware Information: ⓘ

iMac (21.5-inch, Late 2012)

[Technical Specifications] - [User Guide] - [Warranty & Service]

iMac - model: iMac13,1

1 2,7 GHz Intel Core i5 CPU: 4-core

8 GB RAM Upgradeable - [Instructions]

BANK 0/DIMM0

4 GB DDR3 1600 MHz ok

BANK 1/DIMM0

4 GB DDR3 1600 MHz ok

Bluetooth: Good - Handoff/Airdrop2 supported

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

Video Information:ⓘ

NVIDIA GeForce GT 640M - VRAM: 512 MB

iMac 1920 x 1080

System Software:ⓘ

OS X El Capitan 10.11.6 (15G31) - Time since boot: about 8 hours

Disk Information:ⓘ

APPLE HDD ST1000LM024 disk0 : (1 TB) (Rotational)

EFI (disk0s1) <not mounted> : 210 MB

Macintosh HD (disk0s2) / : 999.35 GB (977.30 GB free)

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

USB Information:ⓘ

Apple Inc. FaceTime HD Camera (Built-in)

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Thunderbolt Information:ⓘ

Apple Inc. thunderbolt_bus

Gatekeeper:ⓘ

Mac App Store and identified developers

System Launch Agents:ⓘ

[not loaded] 6 Apple tasks

[loaded] 154 Apple tasks

[running] 78 Apple tasks

System Launch Daemons:ⓘ

[not loaded] 48 Apple tasks

[loaded] 155 Apple tasks

[running] 87 Apple tasks

Launch Daemons:ⓘ

[loaded] com.adobe.fpsaud.plist (2016-08-30) [Support]

User Login Items:ⓘ

iTunesHelper Aplikácia (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Internet Plug-ins:ⓘ

FlashPlayer-10.6: 23.0.0.162 - SDK 10.9 (2016-09-25) [Support]

QuickTime Plugin: 7.7.3 (2016-07-09)

Flash Player: 23.0.0.162 - SDK 10.9 (2016-09-25) [Support]

Default Browser: 601 - SDK 10.11 (2016-07-09)

3rd Party Preference Panes: ⓘ

Flash Player (2016-08-30) [Support]

Time Machine:ⓘ

Time Machine not configured!

Top Processes by CPU:ⓘ

3% WindowServer

3% fontd

1% Activity Monitor

1% kernel_task

0% coreaudiod

Top Processes by Memory:ⓘ

1.18 GB com.apple.WebKit.WebContent(3)

768 MB kernel_task

459 MB softwareupdated

197 MB system_installd

131 MB mds_stores

Virtual Memory Information:ⓘ

660 MB Free RAM

7.35 GB Used RAM (2.96 GB Cached)

0 B Swap Used

Diagnostics Information:ⓘ

Sep 25, 2016, 10:40:28 AM Self test - passed

Ok, my HDD is failing.

But do you thing that it solving my problem with beachbaling:

• mouse cursor is rolling
• music from iTunes stop play for a while
• video in VLC stop play for a while
• stream music and video from web (youtube, spotify) stop play for a while
• I can do nothing at this time

When I will replace HDD, I must open my iMac (new thin version - display is glued to body). I would like to know, that new HDD/SSD solve my problem, because when I find out later that problem was in RAM, I could replace RAM along with HDD in one operation, because opening new iMac is problem - I have to go to the service.

Thanks