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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Is there such a thing as unsafe cpu levels on mac?

Background: The process com.docker.hyperkit has consistently been using between 100% and 200% cpu on my mac (which has 2 physical, and (in total) 4 virtual cores). Question: is there such a thing as ...
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iMac 27" 14,2 late 2013 CPU upgrade

I recently brought an iMac 27" 14,2 back to life after a CPU fault (which in itself was odd since I never seen a PC or Mac with a fried Intel CPU) and it runs pretty nice ... but on a Intel Core i3 ...
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What is the support of AVX-512 in MacBookAir9,1

This could be checked if you have the new 2020 MacBook Air by using command: sysctl -a | grep cpu I am not in possession of this Mac and can not find this documented by Apple or elsewhere online.
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How to stop mDNSResponder from using 90-100% CPU continuously forever on Catalina?

I just upgraded my 2018 15" MacBook Pro from Mojave to Catalina (10.15.4). It's been a few hours. One of the first things I did after the upgrade was edit a video using the new free trial of Final ...
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What is “routined” and why is it eating my CPU?

After my fans started blazing, I checked top and found that a process named routined was using 60-70% cpu. Surprisingly, I found no information about this process via Google, other than a mention of ...
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mds and mds_stores constantly consuming cpu

mds and mds_stores are constant CPU consumers even when I think nothing should have changed on the hard drive. Activity Monitor: I have a circa 2009 Macbook Pro. Lots of software installed over the ...
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kernel_task takes a lot of memory

My kernel_task takes 71.2G VIRT and 2386M RES (in htop screen). I'd like to understand what takes so much resource. But I don't understand what is wrong based on the output of sudo zprint -t https://...
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accountsd eating up all CPU resources when wireless has no internet connectivity

it's a shame that the OS have degraded to this levels of breakage and bugs. There's a way to stop accountsd from eating up all my CPU when I'm without internet access in a wireless connection for LAN ...
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How does my dual core i5 in my MacBook Pro have more than 400% CPU usage? [duplicate]

I've got the Early-2015 13" MacBook Pro (2.7 GHz i5) and whilst I was building Smart Previews for all my 1600+ photos in Lightroom 5 I noticed that the fan had come on (unusually) and that the laptop ...
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Process called “ItYoingm” using over 90% CPU and over 106GB memory - root user

I have recently downloaded Catalina on my Macbook pro and every now and again my fan goes into overdrive, even when I'm hardly using any programs. I opened my Activity Monitor and there is a process ...
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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 ...
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mid-2015 MBP, 16GB, upgraded from 2.5 to 2.8 model. Benchmarks are almost the same, even worse for the 2.8 in some tests

Any thoughts on why this would be? I migrated everything at power-on on the new mac after formatting its Samsung EVO 970 plus, so they have identical drive contents and OS. Also, the 2.8 gets hot ...
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Will a 2008 MacPro3,1 work with only one processor?

I've been running a 2008 MacPro3,1 for a long time now as my home desktop. For my day-to-day, I have much newer equipment but nothing since the old cheese graters has had the same storage capacity ...
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How to disable or remove the YaraScanService (MRT.app)?

Recently on MacOS 10.13.6 I have noticed high CPU usage and identified the process YaraScanService as consuming close to 90% CPU. The Activity Monitor lists it under: /System/Library/CoreServices/...
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MacBook Pro running slow, freezing?

The Background: I am a web developer & graphic designer, both professionally and as a student. This means that in a typical day, I have at least 2 Adobe Creative Suite apps open (Illustrator and ...
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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 ...
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VS Code - Code Helper process using more than 100% CPU on macOS

I noticed that my MacBook gets hot and noisy (fans) when using VS Code (v1.31). The Activity Monitor shows the process Code Helper using more than 100% of CPU. It started happening with one repository ...
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sharedfilelistd and distnoted hog CPU

I understand from my findings on the topic that sharedfilelistd is an "agent that is used by applications to read/modify recent documents/servers/hosts" and distnoted a "distributed notification ...
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pdfsplit fails to start

pdfsplit returns the following error when launched from terminal: pdfsplit --version -bash: /usr/local/bin/pdfsplit: Bad CPU type in executable OS: macOS Catalina 10.15.2 file Checking ...
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Is latest 16" MacBook Pro powerful enough to stream 4k video from Plex to AppleTV without buffering issues?

Scenario: I have a mid-2015 MacBook Pro running 10.15.3. I've downloaded some 4k movies to that computer. They're in MKV form. I use a program called Plex to stream the movies from the MacBook to an ...
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High resting CPU usage and Idle Wake Ups

The idle wake ups on my MacBook Activity Monitor are staggering. Earlier today I accidentally deleted a macOS folder and emptied the trash. After realizing what I had done, it was too late. Now the ...
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CPU throttling on Macbook with bad battery and Catalina

I've seen some answers for this but it references older systems and older OSes. Can anyone update this for relevance in the Catalina era. I have a Macbook10,1 with a shot battery. The screen is ...
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Mac OS Catalina 10.15.2 AMPDevicesAgent using 100% CPU

Today AMPDevicesAgent started using 100% of my CPU. This is causing the fan to run all the time. What is AMP Devices Agent How can I stop this
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Fan speed at maxium and kernel_task at more than 300% after changing the display assembly

I recently replaced my MacBook Pro's (mid-2012) display assembly. After the first boot, my fan speed is at maximum and kernel_task is at more than 300% which is affecting the responsiveness of the OS. ...
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I really want to know what is proper the cpu temperature for my Mac book [duplicate]

I'm using Mac book pro 13 inch , 3.1 ghz i5 dual core. I have set up Mac book fan control and I am able to check the temperature. I was just surfing the internet, and the cpu temperature shows about ...
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What is “photoanalysisd” and why is it using 77% of my CPU?

We got a new iMac for Christmas and it has seemed really slow for the past couple of days. In desperation I checked out Activity Monitor and it shows photoanalysisd as the guilty process that is ...
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Kernel Panic, especially at boot or sleeping mode: Thread “x” crashed. CPU issue?

I encounter some problems with my MBP late 2016. I thought it was from SSD, I have ejected it (now running on external one) I thought it was from RAM, I have run memtest86, the result was OK I have ...
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Why is the accountsd process eating so much CPU?

Why are the accountsd and securityd processes using so much CPU on OS X 10.10.3? I am on a Early 2011 Macbook Pro. What are these processes for? Is it safe to kill them? The machine has only been up ...
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crashing MacBook Pro :(

I have a MacBook Pro from 2010 with 2.4 Ghz Intel Core 2 Duo and 4 GB of RAM. Lately I am getting many kernel panics when my MacBook Pro is under high load, such as when copying, playing video's, ...
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Why is kernel_task using so much CPU?

I have a Macbook Pro Retina with the following hardware: Model Name: MacBook Pro Model Identifier: MacBookPro11,1 Processor Name: Intel Core i5 Processor Speed: 2.4 GHz Number of Processors: 1 ...
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What is the typical CPU utilization of idle iMac?

I am new to macOS. I recently purchased a 2019 iMac (Retina 4K, 21.5 inch). .OMMMMo OS: macOS 10.15.1 19B88 x86_64 OMMM0, Host: iMac19,2 .;...
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How do I get information specific to CPU core via command

Suppose we have one CPU with 2 cores. I seek dynamic scheduling information such as Processes, IO time, IDLE Time, System Time as allocated time specific cores as opposed to aggregated or averaged to ...
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Suddenly the “diagnosticd” daemon rise up to over 200% CPU usage

Suddenly the diagnosticd daemon rise up to over 200% CPU usage, even with Xcode is not running, on OS X Mojave 10.14.1 I can't figure out it. The fans become very noisy.
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Mail.app and accountsd are taking op all CPU Mac OS 10.15

I have suddenly (did not see when it is happening and when it is stopping) CPU peaks, which is coming from Mail.app and accountsd all together i did a screenshot of the activity monitor as well as ...
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How to evaluate different CPUs in 2019 MacBook Pro lineup (2-port vs 4-port)?

If I am looking at the only the 13" MacBook Pros of the 2019 lineup, I see that Apple offers different (non-overlapping) CPU choices depending on whether I start out with the 2-port or 4-port base ...
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Why is Chrome aggressively consuming CPU cycles?

I literally have 0 tabs open, and yet Chrome is consuming a very significant amount of CPU resources, and quickly draining my battery... Why?
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Serious Performance Problems using Expose in Catalina

Summary I am having a problem where using Expose to drag a window from one Space to another causes an enormous slowdown that looks almost comical - like the machine turns into a ouija board and load ...
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Google Chrome Helper Using Up Too Much Memory

Google Chrome Helper is appearing in Activity Monitor a dozen times and overall using a ton of memory. How do I curtail this? Most advice columns say to go to my plugins and check "Play on click", ...
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CPU Not completely Utilized in large workload

I have a Macbook Pro with a i9 Processor and running Macos Catalina. I run CPU extensive tasks daily, but it never utilizes 100% of the CPU. I use Intel Power Gadget to check out my CPU performance. ...
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sysmond using 100% CPU usage, but only while on the Memory tab

I used to have no issues with this, but all of a sudden sysmond is using 100% CPU while I have Activity Monitor set to the Memory tab. sysmond runs normally while in any other tab (CPU, Energy, Disk, ...
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How do I get dSYM files for iTunes for Instruments analysis?

I'm helping a friend investigate poor iTunes performance and asked him to gather an Instruments profile. It captures iTunes using ~100% of CPU but symbols are missing for iTunes. How do I download ...
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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 ...
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Does battery condition have anything to do with macbook pro performance?

Hello I'm using a mid 2015 MBP. My battery lasts 1-2 hours now, I got this text Condition: Replace Soon on the battery icon. Other stuff are my computer sometimes heats up, gets really slow and ...
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Mac Pro 4,1 CPU upgrade

I own a Mac Pro 4,1 (single socket) with a Nehalem Quad-Core CPU. I'd like to upgrade it with a six-core Westmere processor. Now, what I have to do prior to installation of the Westmere processor? ...
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How to monitor and control thermal CPU throttling in OS X?

I recently came across the Intel Extreme Tuning Utility for Windows. I tried it under Bootcamp Windows and it was very interesting to learn in what situations my MacBook Pro's (mid2012) CPU is doing ...
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Crashpad_Handler using +100% CPU [closed]

First of all but not my main question how can something use the CPU for more than 100%? My main question is how can I get rid of it? Is it safe to force it to stop? I think it's a Google Chrome ...
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Mysterious process 'phonetism' eats CPU and vanishes

My 2015 MacBook running Mojave has been acting strange lately, especially whilst browsing. Sometimes Safari will freeze up, or reload a page out of the blue. I can feel my computer struggling, so I'm ...
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Websites with heavy use of websockets skyrocket CPU usage in Safari

(Problem reported to Apple Jul 5, 2019 but I got no answer as of Aug 1, 2019) If you work for Apple please review FB6505912. I have sent to you system reports and Samples from the process. I am ...
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Limit mac CPU frequency without disabling Turbo Boost?

Intel mobile CPUs now have a really low base frequency and a high Turbo Boost freq, e.g. i5 2.4~4.1 GHz. Turbo at 3.8+ makes it go all the way up to 100°C. Using 'Turbo Boost Switcher' to disable TB ...
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CPU frequency in Intel Power Gadget

Which core's frequency and temperature are shown by the Intel Power Gadget tool? How can I observe the frequency of all the independent cores on my MacBook? Can the Intel Power Gadget be configured ...

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