All Questions
29 questions
1
vote
0
answers
26
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macBook is running at 1000% CPU [duplicate]
I have a 2019 MacBook that is running kerneld at 1000% CPU (yes 1000%) no matter if I boot the OS or even into Recovery Mode. However, when I boot into Recovery Mode with Command R I can also hear ...
- 121
0
votes
0
answers
333
views
What is KernelEventAgent in Activity Monitor?
A process called 'KernelEventAgent' is using up all my CPU. I have to force quit it all the time because otherwise everything else slows down..
2
votes
1
answer
1k
views
Throttle CPU to reduce fan usage on MBP
I am using an MBP (late '19, 8-Core i9, macOS 12.5). On medium and heavy usage, the fans kick in, as expected. However, I sometimes want to use the MBP casually and would be willing to throttle down ...
- 23
-1
votes
1
answer
283
views
Regarding: Apple M1 Ultra with 20-core CPU
If I run top or htop on it-- what would I see?
40 CPUs or 20?
It's a legitimate question: I don't expect to be "voted down" for it.....
- 1,321
1
vote
1
answer
2k
views
High kernel_task CPU usage problem
I have an old MacBook Air 13" from 2013. It has been working flawlessly up to maybe 6 months ago, where it started being insanely slow. I have identified the cause to be the dreaded kernel_task, ...
57
votes
9
answers
65k
views
The process com.cisco.anyconnect.macos.acsockext hogs Mac CPU but cannot be killed or stopped from launching
MacBookPro16,1 running Big Sur 11.3.1 (20E241)
This job consumes huge amounts of CPU off and on (see attached image from my Activity Monitor), often causing my laptop fans to engage to cool the ...
- 573
3
votes
0
answers
3k
views
lsd and tccd hogging CPU, launchd getting killed, backupd crashing often
The last couple of days, my Mac (OS 10.14.6 Mojave) has had two daemon processes running hard and hot: lsd (launch service) and tccd (which apparently manages which apps have permission to access ...
- 166
1
vote
1
answer
552
views
MacBook Pro 2020 Fan Issues
I recently purchased a MacBook Pro 2020 13" (1.4 GHz, 8GB Ram, i5). For some reason, when I open Chrome and watch Twitch my computers fans turn on and go crazy. After opening Activity Monitor, I ...
- 13
1
vote
2
answers
680
views
Macbook air 2020 overheating
I just got my macbook air and installed some apps on it. But it started to get hot and I don't know why. The ram usage is 5 GBs out of 16 GBs and CPU usage is about 7%. But still the bottom of my ...
- 11
2
votes
2
answers
102
views
Existing 3rd party software migration
Did Apple mention/provide a way to upgrade existing 3rd party software once systems with the new CPU are released or are we expected to buy from scratch? Does anyone remember how they handled this ...
- 123
0
votes
1
answer
4k
views
Is it possible to upgrade the CPU on a mac mini?
I want to upgrade the CPU on my Mac Mini (Late 2012). I currently have the i5 2,5GHz version but want to upgrade to a better CPU. Will it be possible to upgrade to the i7 2,6GHz that is on some of the ...
2
votes
2
answers
4k
views
Does the Mac mini (2018) support Intel Hyper-Threading?
I am using a Mac mini (2018) with a 3.0GHz 6-core Intel Core i5 processor. My understanding is that this chip has 6 physical cores.
The Activity Monitor shows performance graphs for 6 cores. On other ...
- 13.4k
25
votes
2
answers
9k
views
What replaces x86 intrinsics for C when Apple ditches Intel CPUs for their own chips?
There are whole industries founded on the use of Intel Intrinsics for CPU parallelisation (with SIMD). For example, the community of Lattice QCD physicists depend on that for boost in the efficiency ...
- 379
10
votes
8
answers
24k
views
Why does my Macbook overheat and use so much CPU and energy when on YouTube?
For a long time now, my Macbook has been overheating and hogging my CPU. According to Activity Monitor, Google Chrome Helper is the culprit. Whenever I am browsing the web, there are usually ten ...
- 101
58
votes
2
answers
108k
views
Does macOS have a command to retrieve detailed CPU information like /proc/cpuinfo on Linux? [duplicate]
Linux has a command to retrieve detailed CPU information using cat /proc/cpuinfo. Using this command, users can get CPU and CPU's core information like below.
processor : 0
vendor_id : ...
- 703
42
votes
10
answers
29k
views
MacBook Pro high CPU with external monitors
I recently ordered two 4K monitors (LG 27UD88). I connected them using Mini DisplayPort to DisplayPort Adapter cable to my MacBook Pro.
When I have the monitors connected, the CPU load is very high ...
- 521
0
votes
2
answers
2k
views
Mac is using 100% CPU while it is OFF
I have a
MacBook Pro (Retina, 13-inch, Early 2015)
MacOS High Sierra 10.13.2
Sometimes my mac using a lot of CPU power. The usage is 75% of the system. But this occurred when I was away and the mac ...
- 175
2
votes
1
answer
2k
views
Reset CPU fan speed
I use smcFanControl to control the CPU fan speed, and now wish to reset it so that MacOS automatically adjust the fan speed. Even after using the Reset option in smcFanControl, the CPU fan speed is ...
- 1,148
2
votes
1
answer
3k
views
High CPU runs in launchd
My fan on my Mac has been running all the time. I did google some solution for this problem. However, I didn't see any error on the system.log
Could anybody have any better recommendation for my Mac.
- 21
2
votes
1
answer
881
views
Low CPU usage when performing big task in java [closed]
I recently got mac mini and I'm new to OS X so maybe this is a trivial question.
I'm developing web application in java using Spring. I have another project to run IT tests which sets up the API and ...
1
vote
1
answer
418
views
2011 Mac mini fan always on
I just started having problems with my Mid 2011 Mac Mini — it's fan is continously on although the computer temperature is relatively low and not a lot of CPU is being used. I'm very nervous about ...
- 141
3
votes
2
answers
4k
views
How to stop throttling
How could I improve the performance of my MacBook and stop throttling?
Although the CPU load is not by 100%, the CPU cores heat up to 100 degrees.
- 125
1
vote
1
answer
124
views
Mac Pro Tower, 1 or 2 CPUs
I'd like to know whether a 4,1/5,1 Mac Pro with dual processor board can actually work with just one CPU installed.
- 331
4
votes
0
answers
2k
views
How to find Intel SKU for Mac CPUs
Seems like everywhere you can go to purchase a laptop they specify the Intel SKU for each CPU option - except Apple. If you have a Mac, you can apparently find this info using the following command:
...
- 1,343
3
votes
1
answer
4k
views
OSX High CPU Usage
Are the following CPU usages normal??
From last few days my macbook air is heating too much. And i frequently notice the fan running fast.
Top two process have always use over 70% cpu and it goes to ...
- 31
2
votes
0
answers
263
views
Figure out which app is using Java
If I check my activity monitor there is an instance of java that is constantly taking 5% CPU or more. I know that there is some app that are using java on my system and therefore my question is:
Is ...
- 121
11
votes
3
answers
9k
views
How many cores does a Mid 2012 Macbook Air have?
I checked the specs, and the i5-3427U CPU has 2 cores.
But the Activity Monitor shows 4 little charts for the CPU, so it looks like 4 cores.
Which is correct? Why does the Activity Monitor have 4 ...
- 801
2
votes
1
answer
152
views
Emulating lower speed CPUs on Mac mini
I would like to ask whether it is possible to develop OS X application (especially for Lion) on a Mac mini, being able to test how the performance would be on a lower speed CPU. For example: ...
- 229
6
votes
4
answers
3k
views
What is the Mac equivalent of Windows' Power Plans' Maximum Processor State?
One of my favorite features in Windows is the built-in Power Plans. I can change how much energy my computer uses - whether I want it to drain power like there's no tomorrow and get incredible ...
- 2,408