I use Windows XP SP2 and I’m using HandBrake 0.9.5. When converting video, Handbrake uses CPU at 99%-100%. If video size is big, the PC shuts down during video conversion. I used Processor Tamer and set it to low priority, but CPU is still used fully. What’s a good alternative that will limited Handbrake’s CPU usage?

Aug 20, 2018  How to solve kerneltask high CPU usage? Thread starter fantasticbobski; Start date Feb 14, 2014. SMC Fan Control, or any other fan control software, if they fail, this can happen. All of sudden, I have encountered that dreaded kerneltask problem. It made busy all of the CPU cores and made my Mac sluggish like I have never seen it.

  1. I came across your question looking for the answer. There are times my fans start to race and I'd like to throttle back the memory. If you find an answer, please let me know.


  2. it also depends on your pc configuration, available RAM, CPU, Graphic card..

    also if you have corrupted drivers like graphic card, or codecs..

    HandBrake will take what needs for working, if not then will be really very slow

    In HAndbrake if you go to video there is RF with a slider check that to see if it helps in reducing cpu usage.


    any video converter

    • ok guys, I have a quad core, 16GB RAM, Win 7 Prem, with pretty much nothing else running and I have the 99% cpu issue as well

      • Well, I would start a new question so more people can see your question and help.

        But if you are getting 100% on a quad core cpu it sounds like problem with the version of handbrake. Handbrake takes a good chunk out of my computer, but doesn't top it out.

        • Thanks Carpenter__RichardCarpenter for your are still aware of this question.
          I have a dual core processor and my problem is solved as per suggestion given by 'FIDELIS'.

      • Hi JustJoe,
        Read FIDELIS's reply above. It solves this issue by reducing cpu usage by handbrake but it takes more than it may take otherwise. I hope it will work in your case also!

      • JustJoe,

        Almost the same system you have and was having the same issue as others and you on this thread with Handbrake version 0.9.6. Fidelis resolution helped tremendously. It still uses all 4 threads, but it dropped the total usage by 75%. Hope it helps with you as well.

  3. Hello, also you might want to check the cooling factor in your computer. Regardless of how much processor usage there is, a computer wouldn't usually turn off when it is under heavy processor load. It would slow down drastically but not shut down. Make sure your cooler for CUP is not covered with dust and dust bunnies and if possible, remove cooler and replace the thermal paste in between processor and cooler. Also, how much RAM is there in the system?

    Now with regards to the use of CPUs, you could try setting the program to encode with only one core by doing the following:

    -- open handbrake
    -- add the source file
    -- select your overall settings
    -- click on Advanced tab
    -- add the following text to the end of entry in box at bottom of advance settings without leaving a space


    -- click on start

    Also, make sure that when encoding, only use your computer for the encoding and nothing else. Do not run any other application or use the computer for anything else.

  4. hello .

    try this .

    >Perform a new clean install of Handbrake .
    >Add Handbrake to your Security softwares exception list .
    >Minimize the number of apps running alongside Handbrake .
    >Does your system have sufficient RAM .?
    >Use Process Lasso http://bitsum.com/prolasso.php . its one of the best CPU optimizers in real time . automatically upgrades and downgrades Processes and Applications priority , so as to keep the PC responsive at all times .
    >and you might want to check your CPU thermals and the cooling fan for any faulty behavior . CPU shutting down while encoding might be because of over heating .
    Run CPU temp http://www.alcpu.com/CoreTemp/ and see what temps do you get .
    See you can hear the fans running .
    Open up the CPU case and see for any dust around the fan and the CPU . Blow it out with a blower or a can of compressed air .

  5. How to reduce CPU usage by controlling the Affinity -

    Limit Handbrake Useable CPU Cores in Windows -

  6. What at the specs of your PC? I am using handbrake on a older Intel mac and don't have much trouble out of it.

  7. Use format factory as an alternative. I have never seen it slowing down my pc.

    free and one of the best:

Mac is the most secure and powerful platform among the computer enthusiasts. Mac users have a great and easy-to-explore interface which gives them an edge over the other platform users. However, the situation is not always sunny. Mac users also have to experience dark times. These are dark times symbolize the errors and issues that Mac users face. In this post, we will cover one common error that Mac users struggle with. Here, we will discuss mds_stores and its high CPU consumption issue. I will explain What is mds_stores?and How to fix mds_stores high CPU usage?

Just fix your eyes on the screen and read along.


  • 1 What is mds_stores in Mac?
  • 3 How to fix mds_stores consuming high CPU usage?

What is mds_stores in Mac?

mds_stores is a process for Apple’s Spotlight feature. The acronym “mds” stands for “MetaData Server,” and is an essential part of Spotlight, the efficient, powerful and very useful search feature built directly into the foundation of Mac OS X. You can access Spotlight by pressing Command+Spacebar.

You can identify if mds and Spotlight are indexing is to look at the Spotlight icon, present in the upper right corner of your menu bar. When Spotlight is indexing the magnifying glass will have a dot in the center like in the picture below.

If you click on the Spotlight icon, you’ll see your main hard drive is being indexed, with a progress bar and estimated time until completion. Here’s how it may look.

Important Questions related to mds_stores

Q:- Is mds_stores process related to mdworker?

A:- mdworker is another part of Spotlight and it’s indexing engine. So the answer is Yes. Usually, you will see the mds_stores process in conjunction with mdworker.

Q:- Photo collage screensaver for mac. How long does mds_stores and Spotlight take to complete indexing?

Bes cpu limiter

A:- The time taken to update the Spotlight index depends on a few variables, but mostly the size of your hard drive, the amount of data being indexed, major changes to the filesystem, and the time since last indexing. You should just let the indexing complete, it generally takes between 15 and 45 minutes to complete.

Q:- Can we disable Spotlight and its indexing?

A:-Yes. If you never use Spotlight, you can disable it. This will automatically stop mds_stores and its indexing.

This is all you should know about mds_stores process. Now we can move further to learn about its high CPU consumption issue, and ultimately to know how to fix it. Keep your eyes hooked and scroll down.

mds_stores Process consuming high CPU usage

Mac users face a number of issues. However, the most annoying ones are those, which makes the Mac slow and sloppy. The mds_stores consuming high CPU usage issue is very annoying due to this exact reason. In this issue, mds_stores process starts consuming a very high amount of CPU power, up to 100%. This leads to the Mac heating up abnormally and performing extremely slow. At times, the system may also crash down or freeze.

If your Mac is heating up a lot or the fans are moving at high levels to cool the system, and it is performing frustratingly slower, you should head to Activity Monitor. Check the Activity Monitor and see the amount of mds stores processes, both are related to Spotlight’s indexing. If these processes are consuming an abnormally higher amount of CPU, you are the victim of mds_stores consuming high CPU usage issue.

How to fix mds_stores consuming high CPU usage?

Like always, I’d suggest that you start off with the simplest method, and if that doesn’t work, then you can roam in the complexities. The first thing you should try to fix mds_stores consuming high CPU usage is simple restarting. Just restart your Mac and check if the mds is still consuming a high amount of CPU usage. If restarting solved your problem, then you can stop reading right here. If it didn’t, continue with other methods to solve the issue.

There are 2 Methods available to fix the mds_stores consuming high CPU usage problem for once and for all. You don’t have to be a Mac master to use these. Just follow the steps that I’m suggesting and you’ll get through to the problem.

1. Remove some directories from Spotlight’s indexing

Removing the directories which have frequently changing content will help you to turn mds_stores CPU consumption back to normal. Before doing this, you should also delete Spotlight’s database and force it to re-index. Follow these steps in order to solve the problem:

Step-1: Firstly, delete the Spotlight’s database. Go to the Terminal, it is found in Applications/Utilities. Now copy and paste the following command in the prompt:

Step-2:Restart and let the re-indexing take place. As re-indexing may take a lot of time depending on the factors I mentioned earlier in this post, I’d suggest you let it happen overnight.

Step-3: Now you have to remove directories that have frequently changing content from the Spotlight’s indexing. Go to System Preferences, click the Privacy tab and then drag-and-drop onto it any directories you don’t want it to index.

Note:I removed my CrashPlan, MobileSync and Dropbox folders, and it helped a lot.

Step-4:Restart again and that’s it.

This is the best way to fix high CPU usage problem. There is one more method, if you want to try it too, scroll further down.

2. Disable Spotlight

If you are among the users, who rarely use Spotlight, then this method might become your favorite. You can simply disable Spotlight to prevent high CPU usage issue in Mojave. Follow these steps in order to solve the problem:

Step-1: Go to Terminal, it is found in Applications/Utilities. Copy and paste the following command in the prompt:

The Self-Extracting Driver Installation window appears and prompts to extract files to C: DELL DRIVERS R144930. 3.Leave all of the default settings and click Unzip or OK. If the directory doesn't exist, you'll be prompted to create one. A Self Extractor window appears and indicates C: DELL DRIVERS R144930 files were extracted. Dell monitor 1907fpt driver for mac.

Step-2:Restart your system.

Solved Cpu Usage Limiter For Mac

Note:You can switch the Spotlight back anytime by simply pasting the following command in Terminal:



mds_stores is a process related to Spotlight’s indexing. Sometimes it may start consuming high amount of CPU, this leads to the mds_stores high CPU usage issue. We have covered the best ways to fix the problem. For any queries, doubts, or suggestions, feel free to visit the Comments section. Hope I helped you.

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