Triald on Mac

If your Mac is running slow and the spinning colour wheel keeps appearing, you might be facing performance lags due to the demanding triald process. Luckily, you can regain control of your system resources with MacKeeper’s Memory Cleaner, which frees up RAM, reduces CPU strain, and keeps your device running smoothly—no manual declutter needed.

System Requirements: macOS 10.11 or later

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Triald on Mac
Written by   Tanya Ellis
Published: May 19, 2025

What is triald on Mac

The triald process on Mac is a background system service hooked to Siri, machine learning, and Siri Knowledge features like Visual Look Up, Dictation, and Find My. It collects data for Apple’s internal experiments via CloudKit. First appearing in macOS Big Sur, triald became more noticeable in macOS Monterey 12.3 due to its increased CPU activity.

Triald on Mac refers to a process that runs in the background on your device, which is linked to Siri, Machine learning and other Siri-supported features. However, whether you use Siri or not, triald processes can be demanding on your resources and end up causing performance lags.
The triald process on Mac

Why does triald cause high CPU usage on Mac

Triald is believed to force high CPU usage on Mac, especially when Siri is disabled. The demanding process runs background tasks linked to Siri-related data in ~/Library/Trial, even if those features aren't actively being used.

 

Not sure if CPU usage on your Mac is high? You can follow the advice in our attached blog to help you see Mac CPU usage and determine if any processes need troubleshooting.

A note from our experts:

 

One of the most effective ways to reduce CPU usage from background processes, like triald, is by using a dedicated tool like MacKeeper’s Memory Cleaner. It can free up RAM and monitor your memory usage in real-time to help prevent slowdowns or performance lags.

 

Here’s how to use MacKeeper’s Memory Cleaner:

  1. Download MacKeeper.
  2. Open the app and head to the Memory Cleaner tab.
  3. Press Open.
  4. Look through your Memory Usage, including Apps & Processes.
  5. Press Clean Memory.
To check your Mac’s memory usage, begin by opening up the MacKeeper app and looking for the Memory Cleaner feature. Click on the tab to open the tool and then press Open.
Step 1. In the MacKeeper App, go to Memory Cleaner and press Open
After pressing the Open button, you’ll be able to see a list of your Memory Usage across your device, Apps and Processes. To boost your memory, click on the Clean Memory button.
Step 2. Look through your Mac’s memory usage and then press Clean Memory

How to fix high CPU usage on Mac caused by triald

To fix triald Mac high CPU usage, try troubleshooting Siri in your System Settings. Many Apple users have noticed a rapid improvement in performance after changing their Siri settings, even if the feature is unused.

1. Restart triald process via Activity Monitor.

Worried that triald on Mac is responsible for your high CPU usage? If so, we recommend restarting all triald-related processes in Activity Monitor. This troubleshooting measure can help you fix lags, reduce RAM usage, and give your system a much-needed boost.

 

Our steps below can show you how to restart the triald process via Activity Monitor:

  1. In Finder, click on Applications > Utilities and open Activity Monitor.
  2. In the CPU search box, type in triald to locate all related processes.
  3. Click on the triald process and press Quit.
  4. Confirm by pressing Force Quit to restart the process.
If you need to restart triald processes on Mac, we recommend doing so via Activity Monitor. Begin by opening Finder, going to Applications and then your Utilities folder. Once you see Activity Monitor, click to open.
Step 1. Open Activity Monitor
If you need to restart triald processes on Mac, we recommend doing so via Activity Monitor. Begin by opening Finder, going to Applications and then your Utilities folder. Once you see Activity Monitor, click to open.
Step 2. In the CPU tab, head to the search box and type in triald
When you locate your triald process, right-click and press Quit to restart the process. You will then need to confirm your action by pressing Force Quit. Only then will the triald process restart on your Mac, hopefully improving CPU usage and performance.
Step 3. Click on the triald process, press Quit, and then Force Quit to restart the triald process

An extra hint from us

 

Force-quitting demanding processes, like triald, is not the most effective way to speed up your Mac. Our supporting blog shares over 15 more efficient methods to help you get your Mac back up to speed and running smoothly.

2. Update macOS to fix triald-related bugs

In case you’re still noticing performance issues, it might be due to bugs embedded in macOS. Apple regularly releases patch updates that fix these types of glitches, including repairing the triald process on Mac.

 

We highly recommend you keep macOS up-to-date, and here’s how:

  1. Click on the Apple Icon and select System Settings.
  2. Go to General, then click on Software Update.
  3. If an update is available, you can click Update Now.
To update macOS to fix trials-related bugs, you first need to open your System Settings by clicking on the Apple Icon and selecting Settings from the drop-down menu. Then you’ll need to go to General and click on Software Update.
Step 1. In System Settings, go to General > Software Update
If you have any updates or upgrades available for your installed version of macOS, then you’ll see a button that you can press that says Update Now or Update Now.
Step 2. If an update or upgrade is available, click on Update Now.

A helping hand from the MacKeeper team: 

 

After you have confirmed your macOS is up-to-date, it’s worth checking out our supporting blog on how to check Mac performance and keep your laptop optimized. Our extra guidance can assist you in preventing and fixing slowdowns from happening again.

3. Use Activity Monitor to track triald resource usage

Now that we’ve shared how you can restart the triald process on Mac, our advice extends to keeping an eye on your triald resources to avoid it leading to high CPU usage. Otherwise, your Mac activities will likely continue to be interrupted by performance slowdowns and halts.

 

Here’s how you can track triald using the Activity Monitor app:

  1. Open Finder and go to Applications > Utilities > Activity Monitor.
  2. With the CPU tab open, type triald into the search box.
  3. You can now keep track of the CPU and Memory usage of the triald process.
If you want to keep an eye and track the resources being used by triald, you can re-open your Activity Monitor app any time you want from Finder. Then just search for triald and keep an eye on its usage and resource consumption.
You can use Activity Monitor to track the CPU and Memory usage of the trial process on Mac

Important: 

 

Sometimes, background processes run on your device without any clear reason. To safely terminate unnecessary processes, we recommend you check out the step-by-step guide on how to end tasks on Mac.

Staying on top of performance with MacKeeper’s help

In case you run into Mac performance lags, and you suspect triald to be the cause, you now know our top recommendations to help fix any glitching caused by demanding background processes. You can restart the triald process in Activity Monitor, update macOS, or remove the triald process on Mac altogether.

 

For an extra hand, you can always turn to MacKeeper’s Memory Cleaner to help troubleshoot your device, freeing up RAM and reducing the strain on your resources caused by unnecessary background operations. 

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