This article describes some of the commonly used features of Activity Monitor, a kind of task manager that allows you see how apps and other processes are affecting your CPU, memory, energy, disk, and network usage.
Open Activity Monitor from the Utilities folder of your Applications folder, or use Spotlight to find it.
- Jul 12, 2017 Here’s how to use Activity Monitor to manage your Mac’s memory, fix slow applications, and troubleshoot various other issues. Launch the Activity Monitor app by going to “Applications Utilities Activity Monitor,” or just type “Activity Monitor” into Spotlight. The main screen of Activity Monitor is divided into two sections: 1.
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- Feb 26, 2020 Activity Monitor shows the processes that are running on your Mac, so you can manage them and see how they affect your Mac's activity and performance. This article describes some of the commonly used features of Activity Monitor, a kind of task manager that allows you see how apps and other processes are affecting your CPU, memory, energy, disk.
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Mar 01, 2019 The Stand, Exercise, and Move rings make up the central display for your overall activity as captured by your Apple Watch. Scrolling down in the Activity app on your watch will show you an hour-by-hour breakdown of your activity for each (when you've moved, when you've recorded exercise minutes, and when you've stood). The Fitbit app makes it easy to connect with friends, start activity challenges, read educational articles, get expert advice and share your journey with an uplifting community. Fitbit Premium: - Monthly and annual plans available that unlock habit-forming programs, audio.
Overview
The processes shown in Activity Monitor can be user apps, system apps used by macOS, or invisible background processes. Use the five category tabs at the top of the Activity Monitor window to see how processes are affecting your Mac in each category.
Add or remove columns in each of these panes by choosing View > Columns from the menu bar. The View menu also allows you to choose which processes are shown in each pane:
- All Processes
- All Processes Hierarchically: Processes that belong to other processes, so you can see the parent/child relationship between them.
- My Processes: Processes owned by your macOS user account.
- System Processes: Processes owned by macOS.
- Other User Processes: Processes that aren’t owned by the root user or current user.
- Active Processes: Running processes that aren’t sleeping.
- Inactive Processes: Running processes that are sleeping.
- Windowed Processes: Processes that can create a window. These are usually apps.
- Selected Processes: Processes that you selected in the Activity Monitor window.
- Applications in the last 8 hours: Apps that were running processes in the last 8 hours.
CPU
The CPU pane shows how processes are affecting CPU (processor) activity:
Click the top of the “% CPU” column to sort by the percentage of CPU capability used by each process. This information and the information in the Energy pane can help identify processes that are affecting Mac performance, battery runtime, temperature, and fan activity.
More information is available at the bottom of the CPU pane:
- System: The percentage of CPU capability currently used by system processes, which are processes that belong to macOS.
- User: The percentage of CPU capability currently used by apps that you opened, or by the processes those apps opened.
- Idle: The percentage of CPU capability not being used.
- CPU Load: The percentage of CPU capability currently used by all System and User processes. The graph moves from right to left and updates at the intervals set in View > Update Frequency. The color blue shows the percentage of total CPU capability currently used by user processes. The color red shows the percentage of total CPU capability currently used by system processes.
- Threads: The total number of threads used by all processes combined.
- Processes: The total number of processes currently running.
You can also see CPU or GPU usage in a separate window or in the Dock:
- To open a window showing current processor activity, choose Window > CPU Usage. To show a graph of this information in your Dock, choose View > Dock Icon > Show CPU Usage.
- To open a window showing recent processor activity, choose Window > CPU History. To show a graph of this information in your Dock, choose View > Dock Icon > Show CPU History.
- To open a window showing recent graphics processor (GPU) activity, choose Window > GPU History. Energy usage related to such activity is incorporated into the energy-impact measurements in the Energy tab of Activity Monitor.
Memory
The Memory pane shows information about how memory is being used:
More information is available at the bottom of the Memory pane:
- Memory Pressure: The Memory Pressure graph helps illustrate the availability of memory resources. The graph moves from right to left and updates at the intervals set in View > Update Frequency. The current state of memory resources is indicated by the color at the right side of the graph:
- Green: Memory resources are available.
- Yellow: Memory resources are still available but are being tasked by memory-management processes, such as compression.
- Red: Memory resources are depleted, and macOS is using your startup drive for memory. To make more RAM available, you can quit one or more apps or install more RAM. This is the most important indicator that your Mac may need more RAM.
- Physical Memory: The amount of RAM installed in your Mac.
- Memory Used: The total amount of memory currently used by all apps and macOS processes.
- App Memory: The total amount of memory currently used by apps and their processes.
- Wired Memory: Memory that can’t be compressed or paged out to your startup drive, so it must stay in RAM. The wired memory used by a process can’t be borrowed by other processes. The amount of wired memory used by an app is determined by the app's programmer.
- Compressed: The amount of memory in RAM that is compressed to make more RAM memory available to other processes. Look in the Compressed Mem column to see the amount of memory compressed for each process.
- Swap Used: The space used on your startup drive by macOS memory management. It's normal to see some activity here. As long as memory pressure is not in the red state, macOS has memory resources available.
- Cached Files: Memory that was recently used by apps and is now available for use by other apps. For example, if you've been using Mail and then quit Mail, the RAM that Mail was using becomes part of the memory used by cached files, which then becomes available to other apps. If you open Mail again before its cached-files memory is used (overwritten) by another app, Mail opens more quickly because that memory is quickly converted back to app memory without having to load its contents from your startup drive.
For more information about memory management, refer to the Apple Developer website.
Energy
The Energy pane shows overall energy use and the energy used by each app:
- Energy Impact: A relative measure of the current energy consumption of the app. Lower numbers are better. A triangle to the left of an app's name means that the app consists of multiple processes. Click the triangle to see details about each process.
- Avg Energy Impact: The average energy impact for the past 8 hours or since the Mac started up, whichever is shorter. Average energy impact is also shown for apps that were running during that time, but have since been quit. The names of those apps are dimmed.
- App Nap: Apps that support App Nap consume very little energy when they are open but not being used. For example, an app might nap when it's hidden behind other windows, or when it's open in a space that you aren't currently viewing.
- Preventing Sleep: Indicates whether the app is preventing your Mac from going to sleep.
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More information is available at the bottom of the Energy pane:
- Energy Impact: A relative measure of the total energy used by all apps. The graph moves from right to left and updates at the intervals set in View > Update Frequency.
- Graphics Card: The type of graphics card currently used. Higher–performance cards use more energy. Macs that support automatic graphics switching save power by using integrated graphics. They switch to a higher-performance graphics chip only when an app needs it. 'Integrated' means the Mac is currently using integrated graphics. 'High Perf.' means the Mac is currently using high-performance graphics. To identify apps that are using high-performance graphics, look for apps that show 'Yes' in the Requires High Perf GPU column.
- Remaining Charge: The percentage of charge remaining on the battery of a portable Mac.
- Time Until Full: The amount of time your portable Mac must be plugged into an AC power outlet to become fully charged.
- Time on AC: The time elapsed since your portable Mac was plugged into an AC power outlet.
- Time Remaining: The estimated amount of battery time remaining on your portable Mac.
- Time on Battery: The time elapsed since your portable Mac was unplugged from AC power.
- Battery (Last 12 hours): The battery charge level of your portable Mac over the last 12 hours. The color green shows times when the Mac was getting power from a power adapter.
As energy use increases, the length of time that a Mac can operate on battery power decreases. If the battery life of your portable Mac is shorter than usual, you can use the Avg Energy Impact column to find apps that have been using the most energy recently. Quit those apps if you don't need them, or contact the developer of the app if you notice that the app's energy use remains high even when the app doesn't appear to be doing anything.
Disk
The Disk pane shows the amount of data that each process has read from your disk and written to your disk. It also shows 'reads in' and 'writes out' (IO), which is the number of times that your Mac accesses the disk to read and write data.
The information at the bottom of the Disk pane shows total disk activity across all processes. The graph moves from right to left and updates at the intervals set in View > Update Frequency. The graph also includes a pop-up menu to switch between showing IO or data as a unit of measurement. The color blue shows either the number of reads per second or the amount of data read per second. The color red shows either the number of writes out per second or the amount of data written per second.
To show a graph of disk activity in your Dock, choose View > Dock Icon > Show Disk Activity.
Network
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The Network pane shows how much data your Mac is sending or receiving over your network. Use this information to identify which processes are sending or receiving the most data.
The information at the bottom of the Network pane shows total network activity across all apps. The graph moves from right to left and updates at the intervals set in View > Update Frequency. The graph also includes a pop-up menu to switch between showing packets or data as a unit of measurement. The color blue shows either the number of packets received per second or the amount of data received per second. The color red shows either the number of packets sent per second or the amount of data sent per second.
To show a graph of network usage in your Dock, choose View > Dock Icon > Show Network Usage.
Cache
In macOS High Sierra 10.13.4 or later, Activity Monitor shows the Cache pane when Content Caching is enabled in the Sharing pane of System Preferences. The Cache pane shows how much cached content that local networked devices have uploaded, downloaded, or dropped over time.
Use the Maximum Cache Pressure information to learn whether to adjust Content Caching settings to provide more disk space to the cache. Lower cache pressure is better. Learn more about cache activity.
The graph at the bottom shows total caching activity over time. Choose from the pop-up menu above the graph to change the interval: last hour, 24 hours, 7 days, or 30 days.
Learn more
- Learn about kernel task and why Activity Monitor might show that it's using a large percentage of your CPU.
- For more information about Activity Monitor, open Activity Monitor and choose Help > Activity Monitor. You can also see a short description of many items in the Activity Monitor window by hovering the mouse pointer over the item.
The fitness tracking on Apple Watch goes beyond just counting steps or tracking calories, instead focusing more on your overall health, differentiating between movement and actual exercise, and encouraging you to stand more than you already might. Performing the activities suggested by your Apple Watch helps fill up those rings in the Activity app, but how does Apple measure all of that, anyway? Well not to worry, we've got you covered right here.
Here, you'll find absolutely everything you need to know about the Apple Watch and activity tracking, from how to set it up and sharing activities to starting workouts.
Let's start with what the Activity app actually does, what it tells you, and what kind of data it collects.
The Rings
The Stand, Exercise, and Move rings make up the central display for your overall activity as captured by your Apple Watch. Scrolling down in the Activity app on your watch will show you an hour-by-hour breakdown of your activity for each (when you've moved, when you've recorded exercise minutes, and when you've stood).
Stand
This one seems pretty easy. You fill the stand ring by standing up for one minute an hour in 12 separate hours. What this ring and the alert that comes with it are actually telling you is that you haven't moved in a little while. So when your Apple Watch notifies you that it's time to stand, don't just stand up and stay still, but walk around a little bit. Take a short stroll around your office, or if you're at home, go check the mail.
Exercise
This ring tracks a specific kind of activity. Apple defines exercise as anything equivalent to a brisk walk or more that raises your heart rate consistently. Apple monitors your heart rate and your movement data to make sure you're actually exercising, and you can track workouts using the Workout app on your Apple Watch. Additionally, you can feed workout data into the Activity app using third-party workout apps that support this feature, meaning you can use all of the features provided to you by your favorite workout app while still filling the Exercise ring.
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One thing to note about the Apple Watch's exercise measurements is that, as you more, they will change over time. So the same activities that would potentially help you close your Exercise ring when you first got your Apple Watch may only get you part of the way there after months or even years of consistent activity. The Apple Watch learns your habits, and will consistently push you to go further.
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Move
This ring shows how many calories you've burned throughout the day. It takes into account everything from motion to heart rate data, but it represents your total movement in a 24-hour period, not just exercise. You work towards a calorie goal that you set, and as you continue to wear your Apple Watch, it will be better able to measure how you burn those calories.
The Health app on iPhone, Workout app on Apple Watch, and Activity apps on both are separate and have distinct functions, but can work together to offer a detailed picture of your overall health.
Health
The central repository for all of the information your Apple devices have collected about your health. The data in the Health app includes the activity data collected by your Apple Watch, included Stand, Exercise, and Move data.
With your permission, the app can accept data from third-party apps, and you can also let those apps import your health data as well, to better help them tailor workouts to you. As long as you have granted access to read and write data to any third-party apps of your choice, the data they provide will become part of the overall picture of your health.
Workout app
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This is the default app for tracking workouts, comes built-in with every Apple Watch, and exists solely on the watch. The data from this app feeds into the Health app on your iPhone, covering all sorts of activities, such as indoor and outdoor walks and runs, cycling, elliptical machines, rowing, hiking, and more. This is the data that will most likely go into your Exercise ring.
Activity app
Existing on both the Apple Watch and iPhone, the Activity app keeps detailed records (more on the iPhone than the watch, admittedly) of each day's activity. Using the iPhone app, you can explore your activity for each day that you've worn your Apple Watch, getting breakdowns of how and when you burned calories, looking at exact details of each workout, and exploring your past achievements and achievements still to come.
Third-party fitness apps
Whether you use Pedometer++ to track your steps or Runkeeper to track more intense workouts, third-party fitness apps on the Apple Watch have come a long way since the device debuted in 2015. These apps can contribute to your Exercise ring on your watch and send and read detailed workout data from the Health app on your iPhone.
With this knowledge in hand, it's time to actually get activity tracking set up.
How to set up Activity on your Apple Watch
After syncing the Apple Watch, you will have a chance to set up Activity through your iPhone.
- Launch the Activity app from your iPhone's Home screen.
- Tap Set up Activity.
- Enter your personal information.
- Tap Continue.
- Set your Daily Move Goal. You can use the plus and minus signs to adjust.
- Tap Set Move Goal.
Once you've got Activity set up, there's a lot you can do with it, whether its keeping track of fitness goals or sharing your workouts with others for some friendly competition.
How to set goals and track your progress with Activity on Apple Watch
Goal-setting is the key to measuring success and the Activity app on your Apple Watch lets you quickly see your progress towards your goals at any time. The three areas your Apple Watch tracks — move, stand, and exercise — are each represented by a colored ring in the Activity app. The closer you get to completing a specific goal, the closer the ring will get to completing itself. Apple Watch also lets you scroll down to view a little bit more of a data breakdown if you choose.
How to set up and use Activity Sharing
Thanks to the built-in Activity app, you can keep track of various exercise routines throughout each week such as running, walking, even yoga. When you're not exercising, the Activity app has also been designed to push out notifications to give you an extra push. Happily, these are easy to modify to suit your personal needs.
How to customize notifications for the Activity app on Apple Watch
With the Activity app, you will get daily — often hourly — alerts reminding you to stand up, get moving, and do a bit more exercising to meet your goals. Sometimes though, you're stuck in a car, on an airplane, or otherwise stationary for hours and hours and just can't do your routine. You can silence these reminders altogether or even just for a day.
How to use the Workout app on Apple Watch
The Workout app that is built into your Apple Watch lets you track a lot of common workout types from outdoor running and walking to indoor stationary equipment such as an elliptical. Starting a workout is easy. When you're done your workout, it will automatically be logged in not only the Workout app but the Activity app and the Health app on your iPhone.
How to customize workouts in the Workout app for Apple Watch
By default, your Apple Watch will show you some different metrics during a workout. Things like duration, heart rate, distance, calories burned, and more, can all be displayed during a workout. You if want to change what metrics you see during your workouts, you can head over to the Apple Watch app on your iPhone and customize it to your liking.
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