High Sierra Sudden Slowness/Lag

[dsasa008]

Hi Everyone,

About a week ago I have started experiencing sudden slowness with my High Sierra. Boot times are significantly slower (the progress bar comes to 4/5 of the way, goes back a bit and then shoots all the way after couple of minutes). Once I am logged in keep getting a beach ball for EVERYTHING I do, e.g. create a new folder, open a folder, open or close a new tab in Firefox, you name it, it is all 4-5 sec. delay with or without the beach ball.

What I did so far:

1. Monitored the CPU/RAM/HDD (M2 Intel SSD) usage, no issues, all below 1% at almost all times.
2. Scanned for malware, nothing.
3. Reinstalled from Recovery, no change.
4. The only thing I am noticing is Kernel_task having high CPU time, 120+ threads, and 40,000+ idle CPU wakeups, but I've read it is normal.

Where do I start troubleshooting? If you need me to attach any files, please let me know which and how to get them.

Thank you!

P.S.
For the slow boot I am attaching the boot? log and have marked the timestamps of the slow part start and ending points, is seems to be IOAudioEngine. Not sure if it is related, but I have my onboard audio disabled, using USB?

 

[UtterDisbelief]

Hi Everyone,

About a week ago I have started experiencing sudden slowness with my High Sierra. Boot times are significantly slower (the progress bar comes to 4/5 of the way, goes back a bit and then shoots all the way after couple of minutes). Once I am logged in keep getting a beach ball for EVERYTHING I do, e.g. create a new folder, open a folder, open or close a new tab in Firefox, you name it, it is all 4-5 sec. delay with or without the beach ball.

What I did so far:

1. Monitored the CPU/RAM/HDD (M2 Intel SSD) usage, no issues, all below 1% at almost all times.
2. Scanned for malware, nothing.
3. Reinstalled from Recovery, no change.
4. The only thing I am noticing is Kernel_task having high CPU time, 120+ threads, and 40,000+ idle CPU wakeups, but I've read it is normal.

Where do I start troubleshooting? If you need me to attach any files, please let me know which and how to get them.

Thank you!

P.S.
For the slow boot I am attaching the boot? log and have marked the timestamps of the slow part start and ending points, is seems to be IOAudioEngine. Not sure if it is related, but I have my onboard audio disabled, using USB?

Hi there.

Do you have an external, USB audio device? If so disconnect it and see if that improves boot times and lag.

 

[dsasa008]

Thanks, yes, I do. I tried disconnecting, nothing changed, also, slowness started all of a sudden, the interface was there for over a year...

 

[jaminwang2386]

Thanks, yes, I do. I tried disconnecting, nothing changed, also, slowness started all of a sudden, the interface was there for over a year...

I'm having the same issue....im using focusrite external audio interface for a long time, but it seems like the lag just came out of no where after a few hours. Sudden slowness and lag. If you solve the problem please share how you solved it! I'm using High Sierra too