This article describes some of the commonly used features of Activity Monitor, a kind of task manager that allows you to see how apps and other processes are affecting your CPU, memory, energy, disk and network usage.
May 27, 2020 There is a rich library of the best Mac apps to compare to the best Windows apps.That’s especially true now that we have access to key iOs apps that have been ported over with macOS Mojave. By convention that has been around since the beginning of OS X, Mac applications have a general data-storage folder under '/Library/Application Support/app-name'. However Mac App Store apps (through sandboxing) are enforced to have access onl.
Open Activity Monitor from the Utilities folder of your Applications folder, or use Spotlight to find it.
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.
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:
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- 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 colour blue shows the percentage of total CPU capability currently used by user processes. The colour 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.
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 colour 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.
For example, you might name the start-up drive after yourself, and name one of the external hard drives 'Backups 2011.' Mac os hard drive space. You may add extra internal hard drives, if your Mac can accommodate them, or connect an external hard drive.Type a new name.
The Energy pane shows overall energy use and the energy used by each app: Mac os format new hard drive 2016.
- 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.
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 colour green shows times when the Mac was getting power from a power adaptor.
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.
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 colour blue shows either the number of reads per second or the amount of data read per second. The colour 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.
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 colour blue shows either the number of packets received per second or the amount of data received per second. The colour 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.
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 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.
This article lists and describes the different compliance settings you can configure on macOS devices in Intune. As part of your mobile device management (MDM) solution, use these settings to set a minimum or maximum OS version, set passwords to expire, and more.
This feature applies to:
As an Intune administrator, use these compliance settings to help protect your organizational resources. To learn more about compliance policies, and what they do, see get started with device compliance.
Before you begin
Create a compliance policy. For Platform, select macOS.
- Require a system integrity protection
- Not configured (default) - This setting isn't evaluated for compliance or non-compliance.
- Require - Require macOS devices to have System Integrity Protection (opens Apple's web site) enabled.
Minimum OS required
When a device doesn't meet the minimum OS version requirement, it's reported as non-compliant. A link with information on how to upgrade is shown. The device user can choose to upgrade their device. After that, they can access organization resources.
Maximum OS version allowed
When a device uses an OS version later than the version in the rule, access to organization resources is blocked. The device user is asked to contact their IT administrator. The device can't access organization resources until a rule changes to allow the OS version.
Minimum OS build version
When Apple publishes security updates, the build number is typically updated, not the OS version. Use this feature to enter a minimum allowed build number on the device.
Maximum OS build version
When Apple publishes security updates, the build number is typically updated, not the OS version. Use this feature to enter a maximum allowed build number on the device.
System security settings
Require a password to unlock mobile devices
- Not configured (default)
- Require Users must enter a password before they can access their device.
- Not configured (default) - Users can create passwords simple like 1234 or 1111.
- Block - Users can't create simple passwords, such as 1234 or 1111.
Minimum password length
Enter the minimum number of digits or characters that the password must have.
Choose if a password should have only Numeric characters, or if there should be a mix of numbers and other characters (Alphanumeric).
Number of non-alphanumeric characters in password
Enter the minimum number of special characters, such as
!, and so on, that must be in the password.
Setting a higher number requires the user to create a password that is more complex.
Maximum minutes of inactivity before password is required
Enter the idle time before the user must reenter their password.
Password expiration (days)
Select the number of days before the password expires, and they must create a new one.
Number of previous passwords to prevent reuse
Enter the number of previously used passwords that can't be used.
When the password requirement is changed on a macOS device, it doesn't take effect until the next time the user changes their password. For example, if you set the password length restriction to eight digits, and the macOS device currently has a six digits password, then the device remains compliant until the next time the user updates their password on the device.
- Encryption of data storage on a device
- Not configured (default)
- Require - Use Require to encrypt data storage on your devices.
Firewall protects devices from unauthorized network access. You can use Firewall to control connections on a per-application basis.
- Not configured (default) - This setting leaves the firewall turned off, and network traffic is allowed (not blocked).
- Enable - Use Enable to help protect devices from unauthorized access. Enabling this feature allows you to handle incoming internet connections, and use stealth mode.
- Not configured (default) - Allows incoming connections and sharing services.
- Block - Block all incoming network connections except the connections required for basic internet services, such as DHCP, Bonjour, and IPSec. This setting also blocks all sharing services, including screen sharing, remote access, iTunes music sharing, and more.
- Not configured (default) - This setting leaves stealth mode turned off.
- Enable - Turn on stealth mode to prevent devices from responding to probing requests, which can be made my malicious users. When enabled, the device continues to answer incoming requests for authorized apps.
For more information, see Gatekeeper on macOS (opens Apple's web site).
Allow apps downloaded from these locations
Allows supported applications to be installed on your devices from different locations. Your location options:
- Not configured (default) - The gatekeeper option has no impact on compliance or non-compliance.
- Mac App Store - Only install apps for the Mac app store. Apps can't be installed from third parties nor identified developers. If a user selects Gatekeeper to install apps outside the Mac App Store, then the device is considered not compliant.
- Mac App Store and identified developers - Install apps for the Mac app store and from identified developers. macOS checks the identity of developers, and does some other checks to verify app integrity. If a user selects Gatekeeper to install apps outside these options, then the device is considered not compliant.
- Anywhere - Apps can be installed from anywhere, and by any developer. This option is the least secure.
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- Add actions for noncompliant devices and use scope tags to filter policies.
- Monitor your compliance policies.
- See the compliance policy settings for iOS devices.