613      iPhone_iPad_Mac_apple

2012 Imac is running at a crawl

Have run disk utility from recovery mode and hard drive passes all tests, smart results are OK.  Cannot figure out problem.  Have used bitdefender to examine for viruses.

EtreCheck version: 3.4.6 (460)

Report generated 2017-10-19 18:34:20

Download EtreCheck from https://etrecheck.com

Runtime: 11:09

Performance: Poor

Click the [Lookup] links for more information from Apple Support Communities.

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

Problem: Computer is too slow

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 (i5-3330S) 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

   Handoff/Airdrop2: supported

   Wireless: en1: 802.11 a/b/g/n

   iCloud Quota: 1.79 TB available

Video Information: ⓘ

   NVIDIA GeForce GT 640M - VRAM: 512 MB

       iMac 1920 x 1080

Disk Information: ⓘ

   APPLE HDD HTS541010A9E662 disk0: (1 TB) (Rotational)

   [Show SMART report]

       EFI (disk0s1 - MS-DOS FAT32) <not mounted> [EFI]: 210 MB

       Macintosh HD (disk0s2 - Journaled HFS+) / [Startup]: 999.35 GB (374.85 GB free)

       Recovery HD (disk0s3 - Journaled HFS+) <not mounted> [Recovery]: 650 MB

USB Information: ⓘ

    USB20Bus

        hub_device

           Apple Inc. FaceTime HD Camera (Built-in)

    USB20Bus

        hub_device

            hub_device

               Apple Inc. BRCM20702 Hub

                   Apple Inc. Bluetooth USB Host Controller

    USB30Bus

       Logitech USB Receiver

Thunderbolt Information: ⓘ

   Apple Inc. thunderbolt_bus

System Software: ⓘ

   macOS Sierra 10.12.6 (16G29) - Time since boot: less than an hour

Gatekeeper: ⓘ

   Mac App Store and identified developers

System Launch Agents: ⓘ

   [not loaded]   6 Apple tasks

   [loaded]   173 Apple tasks

   [running]   106 Apple tasks

System Launch Daemons: ⓘ

   [not loaded]   40 Apple tasks

   [loaded]   173 Apple tasks

   [running]   106 Apple tasks

Launch Agents: ⓘ

   [loaded]   com.google.keystone.agent.plist (Google, Inc. - installed 2017-09-27) [Lookup]

   [loaded]   com.oracle.java.Java-Updater.plist (? 8aaba11d f8817326 - installed 2016-01-25) [Lookup]

Launch Daemons: ⓘ

   [loaded]   com.adobe.ARMDC.Communicator.plist (Adobe Systems, Inc. - installed 2017-01-13) [Lookup]

   [loaded]   com.adobe.ARMDC.SMJobBlessHelper.plist (Adobe Systems, Inc. - installed 2017-01-13) [Lookup]

   [loaded]   com.adobe.SwitchBoard.plist (? 68cad67 0 - installed 2013-05-23) [Lookup]

   [loaded]   com.adobe.fpsaud.plist (? 2afb3af7 36f2fce - installed 2017-10-11) [Lookup]

   [loaded]   com.google.keystone.daemon.plist (Google, Inc. - installed 2017-10-14) [Lookup]

   [loaded]   com.oracle.java.Helper-Tool.plist (Shell Script e3fefdd2 - installed 2016-01-14) [Lookup]

User Launch Agents: ⓘ

   [running]   com.akamai.single-user-client.plist (? 7610c7ca f4f704a9 - installed 2017-09-25) [Lookup]

   [loaded]   com.dropbox.DropboxMacUpdate.agent.plist (Dropbox, Inc. - installed 2017-08-10) [Lookup]

   [running]   com.spotify.webhelper.plist (Spotify - installed 2017-02-17) [Lookup]

User Login Items: ⓘ

   Dropbox   Application

       (/Applications/Dropbox.app)

   ScanSnap Manager   Application

       (/Applications/ScanSnap/ScanSnap Manager.app)

   AOUMonitor   Application (? 0 - installed 2017-10-17)

       (/Applications/ScanSnap Online Update.localized/AutoOnlineUpdater.app/Contents/MacOS/AOUMonitor.app)

Internet Plug-ins: ⓘ

   JavaAppletPlugin: Java 8 Update 71 build 15 (installed 2016-01-25) Check version

   FlashPlayer-10.6: 27.0.0.170 (installed 2017-10-16) [Lookup]

   QuickTime Plugin: 7.7.3 (installed 2017-07-28)

   AdobePDFViewerNPAPI: 17.012.20098 (installed 2017-08-30) [Lookup]

   AdobePDFViewer: 17.012.20098 (installed 2017-08-30) [Lookup]

   Flash Player: 27.0.0.170 (installed 2017-10-16) [Lookup]

   Silverlight: 5.1.20513.0 (installed 2013-09-11) [Lookup]

   iPhotoPhotocast: 7.0 (installed 2013-05-23)

User internet Plug-ins: ⓘ

   CitrixOnlineWebDeploymentPlugin: 1.0.105 (installed 2013-04-25) [Lookup]

   WebEx64: 1.0 (installed 2011-05-05) [Lookup]

3rd Party Preference Panes: ⓘ

   Akamai NetSession Preferences (installed 2017-09-11) [Lookup]

   Flash Player (installed 2017-10-11) [Lookup]

   Java (installed 2016-01-25) [Lookup]

Time Machine: ⓘ

   Auto backup: YES

   Volumes being backed up:

       Macintosh HD: Disk size: 999.35 GB Disk used: 624.49 GB

   Destinations:

       Battlestar USB Drive [Network]

       Total size: 4.00 TB

       Total number of backups: 163

       Oldest backup: 11/17/14, 12:24 AM

       Last backup: 10/19/17, 4:39 PM

       Size of backup disk: Excellent

           Backup size 4.00 TB > (Disk size 999.35 GB X 3)

Top Processes by CPU: ⓘ

       24%    kernel_task

        4%    diskimages-helper

        3%    quicklookd

        3%    mount_hfs

        2%    WindowServer

Top Processes by Memory: ⓘ

   723 MB     kernel_task

   233 MB     firefox

   230 MB     spindump

   224 MB     Dropbox

   162 MB     assistant_service

Top Processes by Network Use: ⓘ

   Input      Output     Process name

   71 MB      5 MB       kernel_task

   114 KB     95 KB      mDNSResponder

   91 KB      36 KB      Dropbox

   26 KB      27 KB      apsd

   11 KB      7 KB       netsession_mac

Top Processes by Energy Use: ⓘ

     3.92 WindowServer

     3.22 spindump

     2.52 CacheDeleteExtension

     1.98 MailCacheDelete

Virtual Memory Information: ⓘ

   1.36 GB    Available RAM

   67 MB      Free RAM

   6.64 GB    Used RAM

   1.30 GB    Cached files

   4 MB       Swap Used

Software installs (last 30 days): ⓘ

   Bitdefender Virus Scanner: 3.9 (installed 2017-09-23)

   Bitdefender Virus Scanner: 3.10 (installed 2017-10-03)

   Adobe Flash Player: (installed 2017-10-14)

   Adobe Flash Player: (installed 2017-10-16)

   ScanSnap Online Update: (installed 2017-10-17)

   Install information may not be complete.

Diagnostics Events (last 3 days for minor events): ⓘ

   2017-10-19 18:31:39   ScanSnap Manager.app Hang [Open]

   2017-10-19 18:31:39   Safari.app Hang [Open]

   2017-10-19 18:03:59   Last shutdown cause: 0 - Power loss

   2017-10-19 13:05:54   quicklookd.app Crash [Open]

       Cause:       qlmanage --diag 6571367.4427111 6571367.4426561 6571367.4426561 6571367.4224193 6571367.4194290 6571367.4229949

       last generator in main thread: com.apple.qlgenerator.mail

       last threaded generator: com.apple.qlgenerator.pdf

   2017-10-19 08:54:08   com.apple.WebKit.WebContent High CPU use [Open] [Details]

Bitdefender will make your performance worse, not better, and there are no viruses affecting macOS for it to scan for.

Try starting up in Safe Mode, by holding the shift key when booting up. See if it is still slow.

最后更新：2017-10-20 10:21:16

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