Veel strandballen de laatste tijd

Hallo allemaal,

mijn iMac 27 inch - late 2012 heeft de laatste tijd wat last van strandballen.

Ik heb etrecheck gedraaid en dit zijn de uitkomsten. Ziet iemand hier iets vreemds aan?

EtreCheck version: 3.1.3 (337)
Report generated 2016-11-21 21:32:01
Download EtreCheck from https://etrecheck.com
Runtime 2:23
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 (27-inch, Late 2012)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac13,2
1 2,9 GHz Intel Core i5 (i5-3470S) CPU: 4-core
8 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
Empty
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
BANK 0/DIMM1
4 GB DDR3 1600 MHz ok
BANK 1/DIMM1
Empty
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en1: 802.11 a/b/g/n

Video Information: ⓘ
NVIDIA GeForce GTX 660M - VRAM: 512 MB
iMac 2560 x 1440

System Software: ⓘ
macOS Sierra 10.12 (16A323) - Time since boot: less than an hour

Disk Information: ⓘ
APPLE HDD WDC WD10EALX-408EA0 disk0 : (1 TB) (Rotational)
[Show SMART report]
EFI (disk0s1) <not mounted> : 210 MB
Harde Schijf (disk0s2) / [Startup]: 999.35 GB (889.79 GB free)
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB

USB Information: ⓘ
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller

Thunderbolt Information: ⓘ
Apple Inc. thunderbolt_bus

Gatekeeper: ⓘ
Mac App Store and identified developers

Kernel Extensions: ⓘ
/Library/Extensions
[loaded] com.getdropbox.dropbox.kext (1.8.1 - SDK 10.11 - 2016-11-21) [Support]

System Launch Agents: ⓘ
[not loaded] 7 Apple tasks
[loaded] 167 Apple tasks
[running] 97 Apple tasks

System Launch Daemons: ⓘ
[not loaded] 39 Apple tasks
[loaded] 167 Apple tasks
[running] 97 Apple tasks

Launch Agents: ⓘ
[failed] com.google.keystone.agent.plist (2016-08-24) [Support]

Launch Daemons: ⓘ
[loaded] com.google.keystone.daemon.plist (2016-09-02) [Support]
[loaded] com.microsoft.autoupdate.helpertool.plist (2016-10-10) [Support]
[loaded] com.microsoft.office.licensing.helper.plist (2010-09-28) [Support]
[loaded] com.microsoft.office.licensingV2.helper.plist (2016-10-10) [Support]

User Launch Agents: ⓘ
[running] com.spotify.webhelper.plist (2016-11-21) [Support]

User Login Items: ⓘ
iTunesHelper Programma (2016-11-11)
(/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Spotify Programma Hidden (2016-10-12)
(/Applications/Spotify.app)
Dropbox Programma (2016-11-16)
(/Applications/Dropbox.app)
Garmin Express Service Programma (2016-11-21)
(/Applications/Garmin Express.app/Contents/Library/LoginItems/Garmin Express Service.app)

Internet Plug-ins: ⓘ
Silverlight: 5.1.41212.0 - SDK 10.6 (2016-06-15) [Support]
QuickTime Plugin: 7.7.3 (2016-09-14)
Google Earth Web Plug-in: 7.1 (2016-08-04) [Support]
SharePointBrowserPlugin: 14.6.7 - SDK 10.6 (2016-08-29) [Support]

Safari Extensions: ⓘ
LastPass - LastPass - https://lastpass.com (2016-01-09)

3rd Party Preference Panes: ⓘ
None

Time Machine: ⓘ
Time Machine not configured!

Top Processes by CPU: ⓘ
7% mdworker(20)
3% WindowServer
1% fontd
1% kernel_task
0% com.apple.AmbientDisplayAgent

Top Processes by Memory: ⓘ
922 MB kernel_task
786 MB com.apple.WebKit.WebContent(6)
197 MB Mail
188 MB mds_stores
180 MB mdworker(20)

Virtual Memory Information: ⓘ
2.51 GB Available RAM
266 MB Free RAM
5.49 GB Used RAM
2.25 GB Cached files
2 MB Swap Used

Diagnostics Information: ⓘ
Nov 21, 2016, 08:45:05 PM /Library/Logs/DiagnosticReports/Safari_2016-11-21-204505_[redacted].hang
/Applications/Safari.app/Contents/MacOS/Safari
Nov 21, 2016, 08:42:02 PM ~/Library/Logs/DiagnosticReports/GoogleSoftwareUpdateAgent_2016-11-21-204202_[redacted].crash
/Library/Google/*/GoogleSoftwareUpdate.bundle/Contents/Resources/GoogleSoftwareUpdateAgent.app/Contents/MacOS/GoogleSoftwareUpdateAgent
Nov 21, 2016, 08:36:12 PM Self test - passed
Nov 21, 2016, 08:29:30 PM /Library/Logs/DiagnosticReports/Safari_2016-11-21-202930_[redacted].hang

Misschien is de HD slecht aan het worden na 4 jaar?

Investeer in twee dingen: SSD en wat meer memory. Dan gaat de machine nog een geruime tijd mee.

Meer RAM? Er zit al 8 GB in.

Arjan, al eens geprobeerd hoe die (hetzelfde) doet in de Safe Mode? En uitgelogd uit je gebruiker en ingelogd als nieuw aangemaakte gebruiker op de iMac?

EC ziet er prima uit. Misschien dat je Dropbox eens kan uitzetten; die zou wel veroorzaker van allerlei activiteit kunnen zijn.
Maak je wel back-up’s?

Sierra en 16GB draait toch wel iets beter vind ik.