Q: My macbook air 13" (2015) is very slow even after a clean installation
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Oct 5, 2016 5:10 AMby Ella Fitzgerald,HelpfulHello, have you tried to Reset the System Management Controller (SMC) on your Mac - Apple Support?
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Oct 5, 2016 4:03 AMby dwb,I notice three things:
- CleanMyMac is installed: it has a seriously bad reputation - well earned. Remove it
- You had launch agents and demons killed due to insufficient RAM - despite having 8GB of RAM. CleanMyMac might account for some of it but what things are getting auto-run on your computer? Perhaps #3 answers this question
- MDworker is one of the top processes by memory. MDworker is the Spotlight index process.
When an OS is newly installed Spotlight must re-index and that could account for #2 above and for how slow the computer feels. After upgrading or installing I generally set my computer to not sleep and leave the computer alone for a while until the index is rebuilt. El Cap's Spotlight is somewhat buggy so if MDworker doesn't settle down you may need to delete and let the index rebuild fresh. Here's a link: Rebuild the Spotlight index on your Mac - Apple Support
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Oct 5, 2016 5:16 AMby Verdikke,Hi, I did what you asked and also i removed cleanmymac like 'dwb' asked but stil slow. I also remarked that pressing on key "fn" and F1 to F6 the system doesn't do something. added a new etrecheck
EtreCheck version: 3.0.6 (315)
Report generated 2016-10-05 14:06:13
Download EtreCheck from https://etrecheck.com
Runtime 11:58
Performance: Poor
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Problem: Computer is too slow
MacBook Air (13-inch, Early 2015)
[Technical Specifications] - [User Guide] - [Warranty & Service]
MacBook Air - model: MacBookAir7,2
1 1,6 GHz Intel Core i5 CPU: 2-core
8 GB RAM Not upgradeable
BANK 0/DIMM0
4 GB DDR3 1600 MHz ok
BANK 1/DIMM0
4 GB DDR3 1600 MHz ok
Bluetooth: Good - Handoff/Airdrop2 supported
Wireless: en0: 802.11 a/b/g/n/ac
Battery: Health = Normal - Cycle count = 40
Intel HD Graphics 6000
Color LCD 1440 x 900
OS X El Capitan 10.11.6 (15G1004) - Time since boot: less than an hour
APPLE SSD SM0128G disk0 : (121,33 GB) (Solid State - TRIM: Yes)
EFI (disk0s1) <not mounted> : 210 MB
Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
Macintosh HD (disk1) / [Startup]: 120.10 GB (105.15 GB free)
Core Storage: disk0s2 120.47 GB Online
Apple Inc. BRCM20702 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Inc. thunderbolt_bus
Mac App Store and identified developers
[not loaded] 6 Apple tasks
[loaded] 171 Apple tasks
[running] 62 Apple tasks
[not loaded] 47 Apple tasks
[loaded] 162 Apple tasks
[running] 81 Apple tasks
[loaded] com.macpaw.CleanMyMac3.Agent.plist (2016-10-05) [Support]
iTunesHelper Programma (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Default Browser: 601 - SDK 10.11 (2016-09-03)
QuickTime Plugin: 7.7.3 (2016-07-09)
None
Time Machine not configured!
14% WindowServer
5% kernel_task
4% distnoted(3)
2% SystemUIServer
1% loginwindow
565 MB kernel_task
115 MB mdworker(8)
66 MB Finder
66 MB WindowServer
57 MB mds_stores
5.61 GB Free RAM
2.39 GB Used RAM (1.16 GB Cached)
0 B Swap Used
Oct 5, 2016, 01:32:51 PM Self test - passed
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Oct 5, 2016 5:40 AMby dwb,Did you just delete CleanMyMac from your hard drive or did you follow the vendor's instructions for uninstalling? I still see its launch deamon listed. Make sure CleanMyMac is totally removed from the computer.
mdworker remains a top process indicating that Spotlight is indexing the drive. This can really make the computer feel slow.
If the computer has been awake for quite a long time the Spotlight index might be corrupt causing mdworker to continuously run. (The last time I had to reindex my MBA it took about 2 1/2 hours and I kept it awake for that entire time.) Check my link about Spotlight and follow the instructions. Then give Spotlight a chance to do its work.
I also note that you don't have TimeMachine configured. If you aren't using another form of backup you are living dangerously.
