Fast fans and slow mail after Sierra upgrade

Question

Fast fans and slow mail after Sierra upgrade

So I too just upgraded to Sierra and I have two problems. The first which I noticed almost immediately upon reboot is something is causing the fans to run almost non-stop. I have looked at the console and I can see that several root apps are using over 100% of the CPU time. What the heck is going on here????

Secondly Mail has now slowed to point that it is almost unusable. I click on an email and it literally will take anywhere from 15-20 seconds for the mail to open. Not some complex HTML with video thing just simple plain old email. What on earth is going on here? This is maddening.

John W

MacBook Air (13-inch Late 2010), iOS 6.1.2

Posted on Sep 24, 2016 6:51 AM

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Answer 1

Csound1

Level 9

60,063 points

Sep 24, 2016 7:12 AM in response to John Williams4

After an install of a new OS there is lots of housekeeping to be done, just wait for it to end

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Answer 2

Sep 24, 2016 7:13 AM in response to Csound1

Man if my house had this much housekeeping going on I would be the cleanest house on the block!!

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Answer 3

Csound1

Level 9

60,063 points

Sep 24, 2016 7:16 AM in response to John Williams4

It probably does, every time you replace the furniture.

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Answer 4

Sep 24, 2016 5:53 PM in response to John Williams4

Spotlight has to reindex your drive. Open Activity Monitor in Applications/Utilities. Look for mdworker. You should see several. This process is for Spotlight.

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Answer 5

Sep 25, 2016 10:16 AM in response to John Williams4

I too had up upgrading to Sierra and had an extreme heat and high fan issue I thought my laptop is going to flyway fans were going so fast. If you have time machine hooked up to it disconnect it out and see what happens my slowed down considerably afterwords after doing some research it indexing and trying to back up at the same time but even after that it's still a little warm and fans are still going slow down but still going I have reverted back to EI CAPITIAN Machine is flawless again. CPU readings in terminal are high in kernel and backupd designations. I will research more before I upgrade again. This reminds me of the OS X YOSEMITE ERA.

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Answer 6

Sep 25, 2016 10:17 AM in response to SIGNATURE-R

Yep I agree very reminiscent of similar problems after that upgrade. The fan issues is now better so the indexing must have been the culprit for that problem but Mail still *****! The time is slight better down from 15 second to 8 to open a simple email but still maddening....

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Answer 7

Sep 25, 2016 10:18 AM in response to dianeoforegon

Yep you were right about the indexing and much of that is now over and the fans have cooled down. However the problem with Mail persists.

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Answer 8

Old Toad

Level 10

216,118 points

Sep 25, 2016 10:20 AM in response to John Williams4

Boot into Safe Mode, Mac OS X: Starting up in Safe Mode, and try Mail there. Reboot normally and try again.

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Answer 9

Sep 26, 2016 4:56 AM in response to SIGNATURE-R

So now I see a process called GPSoverWiFi hogging all the time of the CPU and the fans are back on. Anyone know what this process is actually doing?

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Answer 10

Sep 26, 2016 6:03 AM in response to Old Toad

Yes, you are correct booting into safe mode solved the problem. It is basically back to how it was prior to the upgrade. Now how do I isolate the offending extension?

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Answer 11

Csound1

Level 9

60,063 points

Sep 26, 2016 6:05 AM in response to John Williams4

From it's name I assume location services are using it.

This minute inspection of a newly installed OS will only disappoint, leave it alone.

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Answer 12

Sep 26, 2016 6:12 AM in response to Csound1

Fine but it is incredibly annoying....there must be a better way.

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Answer 13

Csound1

Level 9

60,063 points

Sep 26, 2016 6:16 AM in response to John Williams4

Turn it off, then it will stop.

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Answer 14

Sep 26, 2016 6:18 AM in response to Csound1

I get the point, thank you

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Answer 15

Sep 26, 2016 11:58 AM in response to John Williams4

Verify your location in System Preferences > Date & Time.

Verify System Preferences > Security & Privacy that location services is checked.

Click on Location Services.

Select System Services (bottom of list)

Still having issues with GpSoverWiFi.....

Verify your DNS settings

Open System Preferences > Network > Wi-Fi

Write down the settings under Advanced > DNS tab.

Turn off Wi-Fi. Log into a new User and add Wi-Fi. Compare the settings under Advanced > DNS tab.

Make any necessary changes in your User. You might need to remove then add back.

Use Namebench to find the fastest domain name servers.

Download and run: Namebench (free) http://code.google.com/p/namebench/

Once you have the fastest domain name servers, you then have to manually change your DNS settings in System Preferences/Network/

BTW, Google server settings are- 8.8.8.8

Another option is to try turning off IPv6:

In System Preferences --> Network -> choose the Ethernet tab in the far left column --> Advanced button -> TCP/IP tab --> Configure IPv6: dropdown menu, choose Off --> Okay button.

Hope this helps!

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