Questions tagged [cpu]

The CPU (Central Processing Unit) is the part of a computer that performs tasks instructed by the computer programs. Its role is somewhat analogous to that of the human brain; it performs simple mathematical, logical, and in/out operation of the machine.

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What is the ApplicationsStorageExtension process on macOS?

I heard my MacBook Air's fan running loudly, so I opened Activity Monitor. I see that a process named "ApplicationsStorageExtension" has a high number for % CPU. How do I kill that process? ...
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How to find the current temperature of an iPhone's CPU?

There are extremely useful utilities like iStats for viewing the CPU temperature on a device running macOS. Is there a way to view the current CPU temperature of an iPhone? Note: the reason I want ...
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WindowServer high CPU usage, spikes when moving cursor on M1 MacBook Big Sur

The "WindowServer" process uses excessive CPU time on my 2020 M1 MacBook Pro running Big Sur 11.2.1. At idle it will sit at 15-25% CPU time. When moving the mouse cursor it jumps to 30-50% ...
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trustd high CPU locks up Safari in Catalina

I have this weird issue that has manifested since installing MacOS Catalina where Safari will experience the pinwheel for about 20-30 seconds at a time, and then almost immediately after, but for a ...
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CPU Intensive task on Big Sur is really fast for 5 minutes, then really slow

I'm running the compilation of a large program on Mac Os Big Sur on an M1 Mac Mini. I'm using cmake, ninja, with parallelism of 7 (there is 8 cores). It goes really really fast for the first five ...
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High CPU usage in Chrome/Opera

When I open 1-2 tabs with sites that have many images (e-shop as an example) the CPU usage gets to 100% for Chrome/Opera/Firefox. What I've tried: Reset Chrome to default settings Disabled all ...
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127 views

Globally Disable Microphone in Big Sur?

After upgrading to Big Sur from Catalina, I remarked my fan was running continuously. Opening Activity Monitor I remarked that "com.apple.SpeechRecognitionCore.speechrecognitiond" was ...
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Mac gets slow when mouse is plugged in?

I recently got an Steelseries Aerox 3 mouse (wired), and whenever I try to use it, my MacBook Pro (2018) starts to lag an insane amount. I also have an Apex 5 keyboard plugged in, but I can unplug the ...
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What is wrong with my Mac? Unknown df process

I am using a 13-inch MBP 2019 running macOS 11.1. My Mac has been running extremely slowly starting today. It seems as though a process called "df" is the problem, but I can't figure out ...
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Would it be more beneficial to run apps on a separate User Account or create profiles within an app?

I am somewhat turning my MacBook Pro into an Apple TV alternate. Considering macOS's Fast User Switching, I was wondering if it might be more beneficial, in terms of CPU/RAM, to dedicate certain apps ...
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New Macbook Pro 2019 has high temperature with low CPU usage

I got a Macbook Pro 2019 with Intel Core i9 Processors and it seems to heat up and get the fans spinning even with very low cpu usage. For Example, today when I was on a video call, Both my fans were ...
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MacOS 'Big Sur' bad cpu type in executable error [duplicate]

I'm trying to follow along with this simple tutorial (https://flutter.dev/docs/get-started/install/macos) to install Flutter SDK on my new MacOS. I reach step 3 which is to run the program "...
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Activity Monitor: Is there a way to sum up child processes into their parents?

I really like the Hierarchical view in activity monitor for finding which process belongs to which application. The problem is that when you sort by "% CPU" it sorts by the value of the ...
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How to correct AppleKeyStore failures during boot

I have the following setting: $nvram boot-args boot-args idlehalt=0 serverperfmode=1 -v Because I have the verbose boot logging flag, during my MacBook Pro (15-inch, Early 2011) High Sierra 10.13.6 ...
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Big Sur - high CPU usage before user login

Is there a way to log the system activities, such as errors or cpu usage data, before user login? I'm using macOS Big Sur 11.0.1 on MacBook Pro 16 inch - 2019, and I found the machine is hot and the ...
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Is it safe to replace a CPU in MacBook Pro 15” 2018?

My MacBook Pro 15” 2018 stopped working. The CPU model is: 2.6GHz 6‑core 8th‑generation Intel Core i7 processor, Turbo Boost up to 4.3GHz I brought it to official Apple Service. They didn’t tell me ...
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MPB gives mechanical popping sound when it gets CPU heavy load

I'm using my 16' MBP (I bought it december 2019) for development (.NET Core). I experience that when I compile the code (the machine has 6 CPUs, htop shows 12 threads, so the compile can use up to 12 ...
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nfcd process taking 33% of cpu - what is that and why?

Since a few days there is process called nfcd taking up 175% (33% of all cpu) of cpu an my MBP 13 with 10.15.7. It's even running when all apps are closed and after reboot of the Mac. For some reason ...
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234 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 ...
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accountsd process uses all CPU - AMSAccountStoreCache error [duplicate]

the process accountsd is using more than 300 % of my CPU. The error messages in the console that appear are: AMSAccountStoreCache: [AF547297] An ACAccountStore has no associated media type. Returning ...
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A process called “accountsd” has over 200% of CPU usage - MacBook Air 2020 [duplicate]

Apparently for no reason this process takes a lot of cpu resources and makes my mac unusable(battery drops, overheating and performance drops). I upgraded the operating system to the latest version ...
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Process “accountsd” has over 500% CPU usage [duplicate]

I'm on Catalina 10.15.6 on a MacBook 2019 (16-inch) and one hour ago after startup my mac started with an extremely loud fan and overheating. As Im writing this even the typing is lagging behind. ...
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Seemingly random CPU throttling

My 2018 macbook pro with i9 processor running Catalina version 10.15.6 seems to randomly throttle the CPU frequency even with low CPU utilization and lowish temperatures: I am using a docking station ...
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My Mac 3,1 isn't recognizing one CPU - Dual Xeon

I have a mac 3,1 with dual Xeon's. It definitely has 2 CPUs because when I bought it I checked system information and is said 2 CPUs and I put better thermal paste on both of them just just to improve ...
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175 views

Distnoted terminal message

I booted my Mac in Verbose Mode (command v) to see a live report for when my Mac is booting up. There, I found a “message in the bottle”, evidently left there by an Apple developer: (com.apple....
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High CPU usage by system

I'm having by time to time problems with my OS running really slow because the System uses a lot of CPU (it stays like this ~30min). I've checked different articles on the internet in regard to this ...
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385 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 ...
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Why is sysdiagnose constantly running?

Every ten minutes or so sysdiagnose hogs all my CPU cores. Trying to Google for the problem leads to a lot of advice of how to run sysdiagnose as a solution to other problems. I guess it is another ...
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Max Core Frequency almost always at boost clock speed

I have a 21.5" iMac (2017, Retina 4K, 3.4GHz, 8GB RAM). Whenever I open Intel Power Gadget, the Maximum Core Frequency is always at 3.8GHz — apart from a few momentary dips — even if the ...
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Why does Python keep popping up and occupying my CPU?

I occasionally get Python popping up and occupies all my CPU I have no clue why this is happening, because I almost never run Python on my laptop. Here is an update on December 9, 2020 I think the ...
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495 views

What causes excessive CPU use by taskgated, notifyd, and launchd processes?

I've looked around a lot to try to find the answer to this but have thus far been unsuccessful. I am programming in Python, and I have code that takes a long time to run (hours to months depending on ...
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how to solve High CPU usage after time machine recovery

I reinstalled mac and recovered my data using time machine , I mainly use my mac for music production and use Ableton as a DAW After some time using it i found out that the kernel_task is really high ...
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kernel_task takes 100% of the CPU permanently

I have a problem with my computer and, although I can find some discussions about it on the internet, I was so far unlucky with what I tried. So I would like to share here this issue in more details. ...
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Which exact CPU models are used or can be used in the iMac Pro?

The iMac Pro's CPU is upgradable, but documentation on this seems scarce. I found out that the top end 18-core CPU is a Xeon W-2195. Which other CPUs are supported? I could try to find which Xeon-W ...
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How do I get the heat sink bracket off on the Mac Pro 2013 (trash can)?

I have a Mac Pro 2013 which I bought in 2018. I’ve read they are upgradeable (macsales.com has a video on how to do it). I bought a 12 core chips to replace the 6 core chip it came with. I tore the ...
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MacBook Pro wildly oscillating CPU frequency under load

I've been struggling a lot lately with keeping a stable CPU frequency under load for my 2.8 gHz 2015 MacBook Pro 15". I've tried numerous methods, including resetting SMC, NVRAM, hardware ...
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bluetoothd 100%cpu cant turn off bluetooth

my bluetoothd is hitting 100% CPU,on mbp 2013, I have no devices. when I click turn bluetooth off nothing happens, all of the options in option click and shift option click dont change anything, reset ...
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1answer
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Per-process CPU doesn't add up to total in Activity Monitor?

Observing Activity Monitor, the per-process CPU is often very different to the total CPU. Example Here the sum of individual processes is > 50%, yet the total said to be (100 - 91.43) 8.57%. Why ...
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Collect data on CPU usage per core at regular time intervals?

Following from question in comment here, is there any easy way to get CPU usage on a per core basis at a certain interval throughout the day? (e.g. every 60 seconds) Notes happy to use a script (e.g. ...
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490 views

ApplePushService Segmentation Fault (with com.apple.apsd process threads)

I'm having a problem with ApplePushService and a Segmentation Fault (with apsd process threads). Is this some possible iCloud authentication problem? Does anyone have any ideas about this? OS Version: ...
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1answer
1k views

Macbook Pro fan running full speed, activity monitor shows no computationally intensive applications

My 2018 Macbook pro 15 inch fan is running at full speed all the time. I checked activity monitor and my idle was >95%. If this is a hardware problem, is there any way to fix it without opening up ...
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Catalina: Can't sign out of iCloud and Update Apple ID settings error, WindowServer high cpu. Now fixed

I had this issue for a while where system prefs -> icloud complained about "Update Apple ID Settings". Clicking continue it'd eventually ask for my icloud password and then it would an ...
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1answer
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Is 80-90 degrees celsius hot for MBP 2019 CPU temperature

I just converted to apple and bought the latest 16inch MBP with a 6 cores core i7 processor and 16GB of RAM. I am noticing that it gets hot easily, on idle the temperature is around ~45 degrees ...
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375 views

PerfPowerServices uses 60-70 percent of CPU all the time

Looks like this happens after i wake the machine from sleep. i am not sure. the machine is a MBP 13,1 2016. running Mojave I have tried rebooting, shutdown, force quitting the process and a ...
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Touch Bar Server shows up in Activity Monitor, but no Touch Bar on my Mac

I have an early 2013 13" Retina MacBook Pro. I was checking Activity Monitor and noticed that TouchBarServer is usually at the top of the list for both CPU and Memory. Mind you, the 2013 MacBook ...
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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 ...
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CPU Speed drops while running Cinebench but temp drops too

I've been noticing that my MacBook Pro 2015 2.8 GHz is getting slower under load. So I ran some tests. I run Cinebench R20 and get a value of 1370. When I attach peripherals I get odd results. ...
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Upgrading CPU in Mac Pro 5.1

I am planning to update my CPU on my Mac Pro 5.1 2010. As shown here the highest CPU I can get is the dual 6-core Xeon 3.46GHz. Now I wonder if this one I found here can be used straight away without ...
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Is my CPU core/CPU proximity too high in temperature? [duplicate]

As mentioned by the title 'is my CPU core/CPU proximity to high in temperature?'. The underneath of my macbook gets seriously hot. Not only this but if an application is being 'verified' when opened ...
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High CPU usage for WindowServer process in Activity monitor

On my Macbook Pro 13" 2020 model, WindowServer is constantly eating away 20% to 40% CPU. Tried the usual recommendations, but none help. (reduce transparency, display scaling etc) Also tried to ...

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