Q: 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
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.
Posted on Sep 25, 2016 10:16 AM
