MacBook Pro :: Kernel Task Uses 300% CPU
Aug 28, 2014
After installing Mavericks in my 13" mid-2012 MacBook Pro, A proccess called kernel_task uses 300% CPU.
HD 500 GB
RAM 4 GB
Core i5
Mavericks OSX 10.9.4
I run powermetrics
**** Interrupt distribution **** CPU 0: Vector 0x46(SMC): 7.33 interrupts/sec Vector 0x56(HDEF/EHC1): 2.97 interrupts/sec Vector 0x72(IGPU): 323.07 interrupts/sec Vector 0x73(XHC1): 9.51 interrupts/sec Vector 0x76(SATA): 7.73 interrupts/sec Vector 0x78(ARPT): 35.85 interrupts/sec Vector 0xdd(TMR): 995.75
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Info:
MacBook Pro, OS X Mavericks (10.9.4)
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Feb 19, 2012
My computer keeps freezing and applications keep shutting down unexpectantly. So when I went into the activity monitor I saw that Kernal_task and inkjet1 seem to be taking up the most CPU, threads, and memory. What are they? How can I make my computer more efficient? Are these processess causing my computer to be so slow and freezy?
Info:
MacBook Pro, Mac OS X (10.5.8)
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Apr 19, 2012
I have been experiencing the fan running at high rpm and the computer completely slowing down when there is slight pressure applied to the bottom of my macbook pro. I went on Activity Monitor and it shows kernel_task running at over 100% cpu usage. I have already tried resetting PRAM and SMC but those did not work.
Info:
MacBook Pro, Mac OS X (10.7.3)
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Jun 4, 2014
Super slow macbook air and kernel task takes more than 300% CPU….
EtreCheck version: 1.9.11 (43) - report generated 4 June 2014 23:33:53 GMT 07:00
Hardware Information:MacBook Air (11-inch, Mid 2011)MacBook Air - model: MacBookAir
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Jan 18, 2008
I had my first leopard problem on my 1.67 15" powerbook last night. I lost bluetooth so I restarted, I went to the activity monitor and there was a kernel task eating up 152 mb of my ram. All updates are current and I have 2gb of ram. Any ideas as to what this action is doing. I also have a dual 2.4 g5 with 3.5 gb of ram(but no kernel task issues).
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Jul 2, 2014
I've had my macbook pro repaired a few weeks ago (new battery and keyboard).. Ever since then every time I boot it its superslow ... + with high activity on kernel_task.. When I close the lid and open it after 5 seconds again the problem is gone.
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Aug 28, 2014
Product name: Macbook pro 13-inch
Processor speed: 2.5 GHz
Memory: 4 GB
Storage capacity: 500 GB
Software: OS X 10.9.4
In the memory tab in activity monitor, it shows kernel_task which takes up 440 MB. It takes a huge amount of my memory. Also, my macbook pro is running down. I believe that one of the reason for this is kernel task. How do I fix this?
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Aug 15, 2009
Is there any specific reason Kernel_Task seems to think he owns the place? What gives? It's like I turn my MacBook on and he's all like "oh hai! Ize just a system task! 50mb of memory? That's cool that's cool" Then only 2 hours later he's all like "Nah man, I just needed some more room see, it's like 120mb ain't dat much, k?"
I know that OS X handles ram real good and all, by freeing memory when it's required for higher-priority tasks, but I also know that it takes a bit more time to clear that memory AND re-allocate it...
So, is this a memory leak? And while I'm at it what about iChat Agent and Colloquy that are battling out to be RAM champ?
OH, and I haz 2gb installed at the moment.
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Jul 17, 2010
I've been recently realizing that every time i use safari or socialite for a few mins I get a lot of 'beach ball' time. The application would show in red (not responding) in activity monitor and kernel_task would have over 1,900 threads, that will decrease slowly after I force quit the applications.
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Sep 2, 2014
I was working on my Mac but is coming very slow sometimes so I found the problem is the kernel task.
Lex I already use the Clean My Mac and since the first time I delete a lot of things I don't even remember how many. Should I format my drive?
About the iCleanMemory so the system will clear the RAM by it self or should I do something different or use another program?
So here is the report: EtreCheck version: 1.9.15 (52)Report generated 2 de septiembre de 2014 16:58:23 GMT-4 Hardware Information: ? MacBook Pro (Retina, 13-inch, Early 2013) (Verified) MacBook Pro - model: MacBookPro10,2 1 3 GHz Intel Core i7 CPU: 2 cores 8 GB RAM Video Information: ? Intel HD Graphics 4000 - VRAM: (null) Color LCD 2560 x
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Info:
MacBook Pro with Retina display, OS X Mavericks (10.9.4)
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Sep 10, 2014
The kernel task is taking up too much ram on my iMac is there a clear solution to resolving the issue or do i need to do a clean install?
Bootup is slow, applications open slowly and sometime hang.
Info:
iMac (27-inch Mid 2011), Mac OS X (10.7.5)
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Aug 20, 2014
I have a 13inch MBP running Mavericks 10.9.4 with a 2.7 GHz i7, 16GB RAM, 500GB HD. I just recently had the machine Factory Reset. The only APP's I've added are PAGES, NUMBERS and KEYNOTE. When I check the ACTIVITY MONITOR it indicates that out of 16GB of RAM MEMORY, 5.51GB is being used. Usually ACTIVITY MONITOR indicates that as much as 9GB RAM is being used. This MBP is 3 years old and I clearly upgraded the RAM from 4GB (I think) to 16GB. Since this MBP used to run with only 4GB of RAM total; it seems to me that the current amount of memory being used, from 5.51GB up to 9GB out of 16GB total RAM is unusually high. In addition, the above numbers were displayed when only Safari and Activity Monitor are running. Is this normal for Mavericks OSX?
Info:
MacBook
Pro, OS X Mavericks (10.9.4), MBP 2.7 GHz i7 16 GB RAM, 500 GB HD
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Jun 22, 2014
Noticed i was uploading at high speed (8MB/s) constantly. So i check activity monitor, and kernel_task is uploading huge amount of data, so far 20+gb this morning...
I'm not getting a massive CPU usage (10-15%).
Tried restarting, just starts up again after a couple of minutes.
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Jul 14, 2010
When I open Activity Monitor, kernel_task is using approx 240 MB of real memory, and 67 of virtual. All I have open is Safari (and Activity Monitor)Seems like alot of real memory for one process.
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Jul 20, 2010
A few hours ago, I noticed my MBP start hanging and generally processing very slow. Apps would freeze at random times, and generally a lot of odd behavior.
I checked the activity monitor to see what might be causing this. It turns out, the process "kernel_task" is using almost 100% of my CPU. It has stayed within the 70-100% range, and has yet to go down. I tried many things, including restarting my Mac many times, but it remains the same.
Does anyone know why "kernel_task" is taking up so much of my CPU? Is there a way to somehow "reset" the process to get it back to normal?
P.S. I attached a screenshot of the process in the Activity Monitor. You can view it here:
EDIT: I just want to add that I think the "kernel_task" might have started eating CPU when I stopped a RAR program in the middle of extracting an archive. I'm not 100% sure though that this is when the problem started.
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Aug 13, 2009
Yes you read that right. Your brand spanking new MBP will use a 32-bit kernel as default.
You can force 64-bit kernel but some of your hardware will not be working.
So all that marketing crap about the benefits of 64-bit etc are all B.S.
I don't want a million threads about how this will not effect the running of 64 bit apps, etc. because it will. Your 64-bit app will run but it will not be able to address more than 4Gb of RAM.
There are also many more advantages to having a 64-bit kernel.
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Apr 11, 2012
i am running a macbookpro 13" corei5 early 2011.i am having a issue form last 20 days , that kernal-task boost up to 300%.i changed OS up to 10.7 lion but with same result , my laptop is not working normally , speed is slow , fan speed is fast , i changed Ram , Hard disk but still same problem , i also reset the SMC but no result .pls tell me that
Info:
MacBook Pro (13-inch Early 2011), Mac OS X (10.6.8)
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Jun 5, 2014
I have a late 2008 macbook unibody. The computer won't go into sleep mode with the lid closed or if I hit the power button. i have to manually do it with the apple icon in the top of the screen.
The ambient light that blinks while in sleep doesn't light up when I do this either. Its been like this ever since Lion, Mountain Lion and now Mavericks. I've done a clean install of Maverick on a brand new HDD. No change.
I have modified the computer since I've owned it. Upgraded from the OEM 2GB of memory to 4GB which is the max for my model. It didn't come with the illuminated keyboard so I bought the backlit one and installed. I also had to swap the motherboard to do this since my original did not have the backlight connector.
Note the old motherboard also had the same problem with the computer not going into sleep. So I don't believe its a hardware issue. (yes I plugged everything in and seated everything in a appropriate manner, I build custom PC's for friends all the time so what to do and what not to do).
I have checked my sharing preferences and they're all unchecked as this is a fresh install of mavericks. Everything else is all set to system defaults.
Info:
MacBook, OS X Mavericks (10.9.3)
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Feb 23, 2008
I've noticed this on my MacBook Air and also on a friends MacBook so it is in no way unique to this model. In Photo Booth both models seem unable to render the effects at a moderately respectable FPS and fluidity is severely impinged. This is especially noticed when keying the background out and recording video from that. It seems to bring the MBA to it's knees! How can such a novelty application have such a drain on system resources? You would think Apple would have designed the application in mind of the constraints of these models. The MBA isn't especially cheap and if potential customers are seeing it failing to render a novelty webcam application properly I don't think they are going to be particularly impressed.
I'm not particularly impressed and I've bought one. Performance in Photoshop and Illustrator is exquisite, I haven't had any problems and filters etc can be applied quickly. Photo Booth is the one application that I have noticed the MBA struggle to perform in the past week I have been using it. The iSight camera seems to be of a lower quality than for instance the MacBook due to apparent high levels of noise. iSight camera live footage appears to lag behind by about 1 second in Photo Booth and by about 3 seconds in iMovie. The Intel GMA X3100 has proved to be great in rendering streaming Quicktime H.264 720p media from the Quicktime HD Gallery but unable to work Photo Booth properly?
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Oct 27, 2009
I have a Black Macbook. 2.2ghz, 1GB Ram, running Snow Leopard. Recently I've been finding my laptop rather sluggish and slow when performing tasks and opening applications. Firefox will often be quite slow at performing mundane tasks as well as flicking between applications that are open which is also slow. I use a couple of apps to help clear out unnecessary files etc to help with performance and stuff but clearly this doesn't appear to be working.
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Aug 26, 2014
The top and bottom task bar looked to be burnt into the screen on my MacBook Pro Retina Display. Is this possible or are my eyes playing tricks on me?
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Jun 21, 2014
I purchased a 13" Macbook Air today and the fonts on the task bar and menu bar are much too small. I have changed the resolution to 1280x800 and they are too small and 1024x640 is too large (make web pages difficult to view.
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Jun 12, 2009
sometimes my ram usage is really high with no programs open and i see that its kernal task thats doing this. when i restart my computer its fine but i wanna know what this is and why this keeps happening
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Jul 30, 2010
I have a task called 'named' running and it's taking up 100% of a single core (swtiches cores periodically, but 100% when it does). Any idea what this is and whether I can kill it? It looks like it belongs to Internet Sharing.
Edit: I just turned IS off and it disappeared. Turned IS back on and it seems to have killed 'named'.
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Apr 23, 2010
recently I've noticed that my task bar doesn't let me know what programs are running. For instance, normally when a program is open, there's a small white dot under the icon, meaning the program is open. Now that doesn't appear anymore. Can anyone explain how I can turn this option back on? I might have inadvertently shut it off somehow.
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Sep 4, 2010
There is this icon on my task bar that I can't seem to get rid of. I downloaded and installed an application to format an external drive, then when I wasn't happy with it, I deleted it. Unfortunately, when I deleted it, it didn't delete the icon it put in my task bar. I can click on it and get a menu and do a number of things. At the bottom of the menu I can choose "Disable DrivePulse". Nothing happens! I go to system preferences and look at my login items and it's not there! I find it in activity monitor, quit it from there, and it comes back a second later! I search my mac for Drive Pulse and Drive Genius 3 and I get no results! Can somebody help me disable this nuisance permanently? Is there a hidden file on my HD I have to delete?
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Feb 23, 2008
I have a new Mac Pro (standard 2.8 configuration with 3 X 250GB in software RAID0) at my cable station at college. I was expecting this thing to be a real screamer, but I find myself a bit disappointed. Don't get me wrong, it's still quite fast. But for CPU-intensive task in Final Cut Studio, I find it to be slower than it should be. For example, compressing a 6 GB DV file for an iPhone is taking 32 minutes. CPU usage is only around 30% per core. I've never been able to drive CPU usage above this level in any task (Handbrake, Final Cut rendering, etc.) I know that not all software is able to fully use all of the cores, but this doesn't make sense to me. Is this normal performance? Or could something wrong with the Mac Pro?
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Jun 9, 2009
Does anyone know of a task app that has the option to remain open and like pinned to the desktop? I've found some nice to-do apps that ive tried to use by my biggest problem is that if I dont see it all the time, I wont get it done- and I usually only open the app to add things to my "list" only to see things that I was supposed to have done!!
I realize that I could just leave the application open all the time, but that just doesn't seem to work for me, I like to see my background and I dont like having numerous windows open...
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Jul 30, 2009
Every day NASA puts up an "Image of the Day" Sometimes it is a really cool nightscape, sometimes it is great hubble photography, etc... I've been opening up the page every day and right clicking on the new image and saving it to a folder. Is there a way to automate this?
I'd love for my computer to automatically go to the page with the new image on it and save it to a folder. Sometimes I jsut don't have the time to get over to the page, or I jsut simply forget. Is there a way to automate this process?
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Jun 18, 2008
I downloaded firefox 3 and followed thier online instructions. Now it is on my taskbar and when I click on it... it bounces .... then NOTHING! No web browser pops up wth!!!
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