Level 1

8 points

iMac suddenly drop to half performance after 2months - Geekbench

Hi Folks

My iMac suddenly drop to half performance and i can't spot the reason why. I have lately installed SSD drive in my iMacLate09 and the performance was very good for long time. Then all of a sudden the performance is half. I have trim enabled from the start, half the SSD drive is free 168gb free out of total 250gb. My system is a copy of my iMac11 and i see no performance drop on iMac11 that i spend 10times more time on that the iMac09.

Image: Low score 12 Dec (half of normal):

Image: High score 27 Sep:

Image: SSD specs, trim enable + 50% free space.

Here is an EtreCheck:

EtreCheck version: 2.6.6 (226)

Report generated 12/12/15 22:30

Runtime 3:19

Download EtreCheck from http://etrecheck.com

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, Late 2009)

[Click for Technical Specifications]

[Click for User Guide]

iMac - model: iMac11,1

1 2.8 GHz Intel Core i7 CPU: 4-core

12 GB RAM Upgradeable

[Click for upgrade instructions]

BANK 0/DIMM0

4 GB DDR3 1067 MHz ok

BANK 1/DIMM0

2 GB DDR3 1067 MHz ok

BANK 0/DIMM1

4 GB DDR3 1067 MHz ok

BANK 1/DIMM1

2 GB DDR3 1067 MHz ok

Bluetooth: Old - Handoff/Airdrop2 not supported

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

Video Information: (What does this mean?)

ATI Radeon HD 4850 - VRAM: 512 MB

SONY TV 1920 x 1080

System Software: (What does this mean?)

OS X Yosemite 10.10.4 (14E46) - Time since boot: about one hour

Disk Information: (What does this mean?)

ST31000528ASQ disk0 : (1 TB) (Rotational)

EFI (disk0s1) <not mounted> : 210 MB

iMac (disk0s2) /Volumes/iMac : 999.35 GB (84.19 GB free)

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

Samsung SSD 850 EVO 250GB disk1 : (250,06 GB) (Solid State - TRIM: Yes)

EFI (disk1s1) <not mounted> : 210 MB

samsung (disk1s2) / : 249.20 GB (168.11 GB free)

Recovery HD (disk1s3) <not mounted> [Recovery]: 650 MB

USB Information: (What does this mean?)

Apple Inc. BRCM2046 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Internal Memory Card Reader

Toshiba External USB 3.0 500,11 GB

EFI (disk2s1) <not mounted> : 210 MB

1 - 500MB_Toshiba 52gbfree (disk2s2) /Volumes/1 - 500MB_Toshiba 52gbfree : 499.76 GB (70.37 GB free)

Apple Inc. Built-in iSight

Apple Computer, Inc. IR Receiver

Configuration files: (What does this mean?)

/etc/sysctl.conf - File exists but not expected

/etc/hosts - Count: 62

Gatekeeper: (What does this mean?)

Mac App Store and identified developers

Kernel Extensions: (What does this mean?)

/Applications/Parallels Desktop.app

[not loaded] com.parallels.kext.hypervisor (10.1.4 28883 - SDK 10.7) [Click for support]

[not loaded] com.parallels.kext.netbridge (10.1.4 28883 - SDK 10.7) [Click for support]

[not loaded] com.parallels.kext.usbconnect (10.1.4 28883 - SDK 10.7) [Click for support]

[not loaded] com.parallels.kext.vnic (10.1.4 28883 - SDK 10.7) [Click for support]

/Library/Extensions

[loaded] at.obdev.nke.LittleSnitch (4212 - SDK 10.8) [Click for support]

[not loaded] com.sophos.kext.sav (9.4.50 - SDK 10.9) [Click for support]

[not loaded] com.sophos.nke.swi (9.4.50 - SDK 10.9) [Click for support]

[not loaded] com.wacom.kext.ftdi (1 - SDK 10.10) [Click for support]

[not loaded] com.wacom.kext.wacomtablet (6.3.14 - SDK 10.10) [Click for support]

[not loaded] org.cindori.TrimEnabler (1 - SDK 10.10) [Click for support]

/System/Library/Extensions

[loaded] com.Cycling74.driver.Soundflower (1.6.6 - SDK 10.6) [Click for support]

[loaded] com.Cycling74.driver.WondershareAudioDevice (1.5.2) [Click for support]

[loaded] com.shapeservices.msm.driver.MSMFramebuffer (3.3.2 - SDK 10.6) [Click for support]

[loaded] com.shapeservices.msm.driver.MSMVideoDevice (3.3.2 - SDK 10.6) [Click for support]

[loaded] com.splashtop.driver.SRXDisplayCard (1.6 - SDK 10.9) [Click for support]

[loaded] com.splashtop.driver.SRXFrameBufferConnector (1.6 - SDK 10.9) [Click for support]

[loaded] virtualcdrw.driver (1.0 - SDK 10.7) [Click for support]

/Volumes/iMac/Applications/Capture One.app

[not loaded] com.Leaf.driver.LeafFwXDriverMatcher (1.2.0d1) [Click for support]

/Volumes/iMac/Applications/Kies.app

[not loaded] com.devguru.driver.SamsungACMControl (1.4.14 - SDK 10.6) [Click for support]

[not loaded] com.devguru.driver.SamsungACMData (1.4.14 - SDK 10.6) [Click for support]

[not loaded] com.devguru.driver.SamsungComposite (1.4.14 - SDK 10.6) [Click for support]

[not loaded] com.devguru.driver.SamsungMTP (1.4.14 - SDK 10.5) [Click for support]

[not loaded] com.devguru.driver.SamsungSerial (1.4.14 - SDK 10.6) [Click for support]

/Volumes/iMac/Incompatible Software/Parallels Service.app

[not loaded] com.parallels.kext.prl_hid_hook (7.0 15094.749908) [Click for support]

[not loaded] com.parallels.kext.prl_hypervisor (7.0 15094.749908) [Click for support]

[not loaded] com.parallels.kext.prl_netbridge (7.0 15094.749908) [Click for support]

[not loaded] com.parallels.kext.prl_usb_connect (7.0 15094.749908) [Click for support]

[not loaded] com.parallels.kext.prl_vnic (7.0 15094.749908) [Click for support]

Startup Items: (What does this mean?)

FanControlDaemon: Path: /Library/StartupItems/FanControlDaemon

TuxeraNTFSUnmountHelper: Path: /Library/StartupItems/TuxeraNTFSUnmountHelper

Startup items are obsolete in OS X Yosemite

Launch Agents: (What does this mean?)

[running] at.obdev.LittleSnitchUIAgent.plist [Click for support]

[loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]

[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a...plist [Click for support]

[loaded] com.adobe.CS5ServiceManager.plist [Click for support]

[running] com.extensis.FMCore.plist [Click for support]

[loaded] com.oracle.java.Java-Updater.plist [Click for support]

[loaded] com.splashtop.streamer-for-root.plist [Click for support]

[running] com.splashtop.streamer-for-user.plist [Click for support]

[running] com.wacom.wacomtablet.plist [Click for support]

[running] virtualcdrw.daemon.plist [Click for support]

Launch Daemons: (What does this mean?)

[loaded] ag.shape.MSMToolHelper.plist [Click for support]

[running] at.obdev.littlesnitchd.plist [Click for support]

[loaded] com.adobe.ARMDC.Communicator.plist [Click for support]

[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist [Click for support]

[loaded] com.adobe.SC.FPFeedbackService-1.0.plist [Click for support]

[loaded] com.adobe.SwitchBoard.plist [Click for support]

[loaded] com.adobe.fpsaud.plist [Click for support]

[loaded] com.macpaw.CleanMyMac2.Agent.plist [Click for support]

[loaded] com.macpaw.CleanMyMac3.Agent.plist [Click for support]

[loaded] com.microsoft.office.licensing.helper.plist [Click for support]

[loaded] com.oracle.java.Helper-Tool.plist [Click for support]

[running] com.splashtop.streamer-daemon.plist [Click for support]

[running] com.splashtop.streamer-srioframebuffer.plist [Click for support]

[loaded] org.cindori.SenseiTool.plist [Click for support]

[loaded] org.cindori.TEAuth.plist [Click for support]

User Launch Agents: (What does this mean?)

[loaded] com.adobe.AAM.Updater-1.0.plist [Click for support]

[loaded] com.adobe.ARM.[...].plist [Click for support]

[loaded] com.bittorrent.uTorrent.plist [Click for support]

[loaded] com.google.keystone.agent.plist [Click for support]

[loaded] com.macpaw.CleanMyMac3.Scheduler.plist [Click for support]

[loaded] com.redgiantsoftware.updater.plist [Click for support]

[running] com.spotify.webhelper.plist [Click for support]

User Login Items: (What does this mean?)

Macs Fan Control Application (/Applications/Macs Fan Control.app)

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

Flux Application (/Applications/Flux.app)

Awareness Application (/Applications/Awareness.app)

Alfred 2 Application (/Applications/Alfred 2.app)

Dropbox Application (/Volumes/iMac/Applications/Dropbox.app)

Copy Application (/Volumes/iMac/Applications/Copy.app)

RescueTime Application Hidden (/Applications/RescueTime.app)

CleanMyMac 3 Menu Application (/Applications/CleanMyMac 3.app/Contents/MacOS/CleanMyMac 3 Menu.app)

VirtualCDRW Application (/Applications/VirtualCDRW.app)

MEGAsync Application (/Applications/MEGAsync.app)

Other Apps: (What does this mean?)

[running] com.apple.xpc.launchd.oneshot.0x10000005.Google Chrome

[running] com.apple.xpc.launchd.oneshot.0x10000008.Little Snitch Network Monitor

[running] com.copy.agent.247396

[running] com.crystalidea.MacsFanControl.51152

[running] com.etresoft.EtreCheck.15936

[running] com.futureproof.awareness.134932

[running] com.getdropbox.dropbox.250520

[loaded] com.lsreset

[running] com.macpaw.cleanmymac3.menu.367244

[running] com.primatelabs.mas.Geekbench3.458976

[running] com.rescuetime.RescueTime.50584

[running] com.runningwithcrayons.Alfred-2.50300

[running] com.wacom.TabletDriver.58820

[running] com.wacom.WacomTouchDriver.55696

[running] mega.mac.92900

[running] org.herf.Flux.49164

[running] virtualcdrw.sbi.50868

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

AdobeAAMDetect: Version: AdobeAAMDetect 1.0.0.0 - SDK 10.6 [Click for support]

FlashPlayer-10.6: Version: 20.0.0.235 - SDK 10.6 [Click for support]

Default Browser: Version: 600 - SDK 10.10

AdobePDFViewerNPAPI: Version: 15.008.20082 - SDK 10.8 [Click for support]

AdobePDFViewer: Version: 15.008.20082 - SDK 10.8 [Click for support]

Flash Player: Version: 20.0.0.235 - SDK 10.6 Cannot contact Adobe

QuickTime Plugin: Version: 7.7.3

SharePointBrowserPlugin: Version: 14.0.0 [Click for support]

WacomTabletPlugin: Version: WacomTabletPlugin 2.1.0.6 - SDK 10.9 [Click for support]

JavaAppletPlugin: Version: Java 8 Update 60 build 27 Check version

Safari Extensions: (What does this mean?)

AdBlock

Open in Internet Explorer

TinEye

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

Flash Player [Click for support]

FUSE for OS X (OSXFUSE) [Click for support]

Java [Click for support]

Tuxera NTFS [Click for support]

WacomTablet [Click for support]

Time Machine: (What does this mean?)

Skip System Files: NO

Mobile backups: OFF

Auto backup: YES

Volumes being backed up:

Destinations:

Seagate 4tb [Local]

Total size: 4.00 TB

Total number of backups: 0

Oldest backup: -

Last backup: -

Size of backup disk: Excellent

Backup size 4.00 TB > (Disk size 0 B X 3)

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

20% Google Chrome Helper(17)

11% Google Chrome

6% WindowServer

4% kernel_task

0% fontd

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

1.51 GB Google Chrome Helper(17)

952 MB kernel_task

430 MB mds_stores

283 MB com.apple.WebKit.WebContent(3)

270 MB Finder

Virtual Memory Information: (What does this mean?)

5.99 GB Free RAM

6.00 GB Used RAM (1.94 GB Cached)

0 B Swap Used

Diagnostics Information: (What does this mean?)

Dec 12, 2015, 09:14:16 PM ~/Library/Logs/DiagnosticReports/Finder_2015-12-12-211416_[redacted].crash

Dec 12, 2015, 09:13:54 PM Self test - passed

Best regards Mads

iMac, OS X Yosemite (10.10.2), iTunes Version 12.1.0.50

Posted on Dec 12, 2015 1:46 PM

34 replies

Jan 1, 2016 4:19 PM in response to madsschou88

As I understand it, Geekbench 3 measures processor and RAM memory performance, not disk input/output.

http://support.primatelabs.com/kb/geekbench/interpreting-geekbench-3-scores

Adding or removing an SSD should have little or no effect on either of those numbers.

Seems to me that the i7 processor itself or perhaps defective RAM or memory controller chip is now limiting performance. A high-temperature or temperature-sensor induced limitation, perhaps because of a clogged or broken fan or an unplugged sensor when the SSD was installed? High-performance processors do have a lower-performance mode to protect themselves when high internal temperatures are detected.

Looking at the Geekbench3 benchmark trends posted for all i7 2009 iMacs, you'll see that at least two 2.66Ghz and two 2.80Ghz i7's (I assume one of these is your results) are operating at significantly decreased performance.

EDIT: Did you run the benchmark after using the system for an extended period of time doing processor-intensive tasks? Maybe try re-running it right as you start up from a system that's been off for a few hours and is at room temperature.

madsschou88 Author

Level 1

8 points

Jan 1, 2016 1:37 PM in response to Recycled Hoosier

OK, i had some damage on the internal monitor port on logis-board so I run the iMac via external display port. it might have fried other parts as well. Hmmm. I have run the test 10 times newly restart as well. Though the old high score test from September is also via external display port monitor and damaged logic board so I assume it has not influence. Maybe is the fan speed software that limits the CPUs power, I'll try to set full speed fan and see it it make a difference, currently it's automatic fan control.

madsschou88 Author

Level 1

8 points

Jan 1, 2016 4:13 PM in response to madsschou88

I just tested with full fan speed and it did not help. I have 2x4gb and 2x2gb 12gb ram so i don't think the ram is a problem..

Can i test the cpu or logicboard somehow?

2.8Ghz i7

12gb ram - 2x4gb and 2x2gb

madsschou88 Author

Level 1

8 points

Jan 1, 2016 4:35 PM in response to madsschou88

Good fanspeed and temperature before test

Temperature only go up 5deg on 70% through test.

Jan 1, 2016 11:23 PM in response to madsschou88

I checked further into the processor specs, and I was mistaken, and I apologize.

Checking the legacy Intel datasheet for the i7-860, your 'desktop' i7 processor DOES NOT have thermal monitoring technologies: http://ark.intel.com/products/41316/Intel-Core-i7-860-Processor-8M-Cache-2_80-GH z

It is 'mobile' i7 processors of that generation that contain thermal monitoring capability: http://ark.intel.com/products/49666/Intel-Core-i7-640M-Processor-4M-Cache-2_80-G Hz

So you verified that the most recent index numbers are repeatable, that the fan(s) work, and the processor temperature generated during the benchmark is not going up dramatically. It is interesting that the CPU fan speed did not increase during the test.

Still,something appears to be limiting your system memory and processor performance that was not present when you ran those same performance benchmarks in September 2015, and from your data sheets, the September run was on the same OS X release, so it's not some change within OS X.

Have you noticed an actual decrease in system performance, or only in the numbers generated by the benchmark?

cdhw

Level 4

3,594 points

Jan 2, 2016 2:19 AM in response to madsschou88

I doubt it is the problem, but just in case, try swapping one of the 4GB sticks with one of the 2GB sticks so they are paired 4+4 and 2+2 instead of the 4+2 and 4+2 you currently have.

Also, have a look with Activity Monitor while Geek Bench is running and try to figure out whether any of the memory it is using is 'compressed'.

You have got so many third-party extensions and other applications running on your machine that Geek Bench is only getting a 490/800 share of the CPU. Also, Geek Bench is running as 32-bit executable, which may also create overhead.

You're also running 10.10.4 and one of the things that has been improved in subsequent OS releases is 'performance'.

babowa

Level 9

78,568 points

Jan 2, 2016 8:46 AM in response to madsschou88

As for your RAM, is it installed to match horizontally? If so, that is the correct way for that model (the configuration did not change until 2012 or so). For some reason, Apple's report on installed RAM has always been confusing - what matters is that there are 2 horizontally matching modules in the top row (such as 2 x 2 GB) and two matching in the bottom row (2 x 4 GB). You can also put the two 4 GB modules at the top - that does not matter.

madsschou88 Author

Level 1

8 points

Jan 3, 2016 11:52 AM in response to babowa

Still bad less than 50% performance ? 😟 To be honest i don't think it's a software issue the give 50% drop, also after clean install.

Anyone know what it can be?

John Galt

Level 10

155,810 points

Jan 3, 2016 11:53 AM in response to madsschou88

madsschou88 wrote:

Anyone?

I noticed you have not yet replaced the Samsung SSD. Nothing will change until you do that.

madsschou88 Author

Level 1

8 points

Jan 3, 2016 11:55 AM in response to Recycled Hoosier

I did notice my system was not as snappy a usually i thought it was weird so i did i bench mark to see if it was just me.. Then i realised it was 50% drop in benchmark score, so might be a damaged chip or something like that? But does that system even startup if hardware is damaged?

madsschou88 Author

Level 1

8 points

Jan 3, 2016 11:59 AM in response to John Galt

You mean i should buy i new ssd? It's an evo 850 should be very reliable ssd. I have two in rail in my iMac11 for a year now with no problems. I just wiped it and w/r speed are fine. What should change on my iMac09 with a new ssd?

Cheers Mads

John Galt

Level 10

155,810 points

Jan 3, 2016 12:08 PM in response to madsschou88

As I wrote the Samsung 850 EVO has a poor reputation among Mac users, so eliminating it as a contributing factor would require replacing it with a device that doesn't.

madsschou88 Author

Level 1

8 points

Jan 3, 2016 12:32 PM in response to John Galt

http://www.dslreports.com/forum/r29692668-Samsung-EVO-840-850-safe-to-use-in-OS- X

But i'll try get an other one, any you can recommend?

This guys has a similar issues, is there nothing to learn from this? iMac (late 2009) CPU runs very slow (about half speed)

Let me know if anyone can see what the actual issue is.

John Galt

Level 10

155,810 points

Jan 3, 2016 1:19 PM in response to madsschou88

Replace that Mac's original hard disk drive, another hard disk drive, or a SSD known to work with Macs. The only SSDs I have used and can recommend are sold by OWC / MacSales. I am not aware of a single problem with them, whereas complaints of poor performance from Samsung 850 EVO SSDs are commonly reported on this site. Performance degradation may not appear for a long time after they have been placed in service.

madsschou88 Author

Level 1

8 points

Jan 3, 2016 1:16 PM in response to John Galt

OK, i just tested my old HD drive where i have a OS X 10.8.5 installed i got similar score is i get now on my SSD with 10.10.4. https://browser.primatelabs.com/geekbench3/4772976

I thought the big deal with these sad's was to enable the trim and then it should work fine? Hmmmm. Can i safe erase the ssd write 0's to all blocks or is there another way to regain life in the ssd? Very confusing to target in on what that actual issues with that disk is since, it shows 250mb/s r/w transfer speeds.. When i have not enabled trim on my other evo850 the drop to 50mb/s r/w which makes sense since garbage is not cleaned, but then i formatted and enabled trim from start with no issues..

Is there a third level of problems beyond trim? and is it solvable?

Cheers and thanks for reply's 🙂

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iMac suddenly drop to half performance after 2months - Geekbench