Slow Performance After Wake From Sleep (Clamshell)

[bigdog5142]

I need some help. I'm not sure what to do at this point...and this is getting FRUSTRATING. Maybe someone can help?

So...I have a 2016 MBP with Touch Bar. I was having issues with the system files taking up 340GB of space, so I did a clean install of Mojave and loaded what I needed after the fact. Now I have just under 400GB free of my 512GB SSD. So that's good.

I run my MBP through a Belkin Thunderbolt 3 dock that has may peripherals attached. It is connected to an external USB hub that has a DVD drive and two HD's connected as well as a SD card reader. The dock drives two LG 4K displays. I have had flickering issues...but that's another, smaller point. The MBP is running in clamshell mode and connected to the dock via a Thunderbolt 3 cable.

The computer runs great upon first boot. However, I will leave for lunch or for a meeting or something and when I come back to wake from sleep...the computer is just SLOW. Launchpad takes over 10 seconds to load and close. Apps take a LONG time to load. It's almost impossible to go between full-screen apps. I've looked at the Activity Monitor and don't see anything really taxing the system. I will say I have about 14GB of RAM in use...not sure why.

Anyway...any suggestions or clarifying questions? Thanks in advance for whatever help you can give.

 

[Honza1]

This is known issue...

I have reported this issue to Apple bug report twice over last few months. It was discussed here few weeks/months ago and there are quite a few reports of people who have the same problem. It appeared in 10.14.4 and is still present in 10.14.5.

Apple closed my bug for 10.14.4 as duplicate of some prior report by someone else. I reopened after 10.14.5 had the same issue and they closed it again, noting that they have no estimate when it will be fixed and basically "stop bugging us".

My suggestion: report this as bug either by calling them or preferably by using bugreport web page. May be if more people keep annoying them, they will try to fix what the broke in 10.14.4 update. It shoudl not be that difficult to do diff on the code and figure out what they screwed up.

At this time I "fixed" the problem by using command line power management tools to increase real sleep timeout to 4 hours, while keeping display timeout to ~10 minutes. This causes my Mac never really fall asleep during daytime and therefore this is not problem for me at this time. Of course, it is not ideal, but is solution.