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.
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Open Activity Monitor from the Utilities folder of your Applications folder, or use Spotlight to find it.
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:
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:
You can also see CPU or GPU usage in a separate window or in the Dock:
Memory
The Memory pane shows information about how memory is being used:
More information is available at the bottom of the Memory pane:
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:
More information is available at the bottom of the Energy pane:
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
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. Electronic circuit simulation software for mac.
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.
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What is WindowServer Process on Mac? How to Prevent WindowServer Process Mac High CPU Usage:
The WindowServer is a very important and inevitable process in every Mac System. It is completely safe process that must run on your Mac to handle graphics and display related activities. When this process takes higher portion of CPU, you have to prevent it. The WindowServer High CPU Usage slows down the Mac System, heats it up and drains the battery faster. Therefore you need to find a way to prevent the WindowServer Process from taking High CPU Usage on Mac.
Contents
What is WindowServer Process on Mac?
WindowServer Process is a core part of Mac OS, it is directly concerned with Apple Graphics Hardware. The WindowServer is a mediator between the Apps and the Display of your Mac. Everything you type, draw or play on Mac is shown on the display by WindowServer Process.
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Why WindowServer Process taking High CPU Usage on Mac?
The WindowServer takes CPU Usage on the basis of number of opened apps and the apps, games or files constantly refreshing the display. If the Activity Monitor on your Mac is showing high CPU usage by WindowServer, you must check the running apps and games. Here we provide some possible causes of WindowServer Process taking High CPU Usage on Mac as follows:
How to Prevent WindowServer Process from taking High CPU Usage on Mac
WindowServer Process can take CPU Usage based on Mac user’s activities. But sometimes the process takes high amount of CPU without any specific reason.
For example: All apps and games are closed. All apps from the Dock are closed. There is No animated icon or picture on Mac desktop. But the WindowServer Process is still taking high CPU usage.
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In such circumstances, you need to take some action to reduce the WindowServer Mac CPU Usage. Because it will slowdown your Mac, heat the PC and if you have MacBook, it will drain the battery faster. Here we provide some easiest ways to prevent WindowServer Process High CPU Usage on Mac as follows:
01. Reduce Transparency
When Transparency Settings are set to high, the graphics usage is also high. As a result, the WindowServer Process takes high CPU usage on Mac. Therefore we suggest you to reduce transparency in your Mac System to reduce the CPU usage by the WindowServer Process. Kindly follow the steps given below to reduce transparency on your Mac:
01. On your Mac Desktop, open Apple Menu.
02. Select “System Preferences” to go to that section.
03. Click on “Accessibility” icon to open Accessibility options.
04. Now select “Display” in the left side list.
05. Here you will see various options such as Invert Colors, Reduce Motion etc.
06. Find out “Reduce Transparency” option and tick the box.
07. Close the Accessibility Settings Window.
After reducing transparency, you will notice that your Mac’s Apple menu bar and Dock have become non-transparent. It also affects other apps which will ultimately reduce the WindowServer High CPU Usage on Mac.
02. Turn On/Off Automatic Graphics Switching
Many MacBook devices come with two graphics processors. The Mac System uses the suitable graphics processor as per its requirement. It also switches the graphics automatically which may cause high CPU usage by WindowServer. We request you to turn off the Automatic Graphics Switching option to check if the CPU usage gets reduced. Please follow the steps given below to turn off automatic graphics switching on Mac:
01. On your Mac, open Apple Menu.
02. Select “System Preferences” tab.
03. In System Preferences window, select “Energy Saver” icon.
04. You will see “Automatic Graphics Switching” option at the top of the Energy Saver settings window.
05. Un-check the Automatic Graphics Switching option to turn it off.
06. Close the Energy Saver settings window.
When you turn off Automatic Graphics Switching option, the Mac System will always use the high graphics processor for all apps. So you should check the WindowServer Process in Activity Monitor when Automatic Graphics Switching is turned off and turned on. If the WindowServer uses more CPU when auto graphics switching is off, you should turn it on again. You should keep the graphics switching mode which consumes less CPU usage by WindowServer.
03. Hide the Dock
On your Mac, Dock is situated at the bottom of the desktop screen. The dock contains many app icons. The WindowServer has to draw and show up those icons on your Mac display. Sometimes you don’t have any use of those icons still they are appearing on screen and using high CPU. Therefore we request you to turn on automatically hide dock option by following the steps given below:
01. On your Mac, open Apple Menu.
02. Select “System Preferences” option.
03. Find out “Dock” icon and click on it to open Dock Settings.
04. On Dock Settings Window, find out “Automatically hide and show the Dock.”
05. Check that box to turn on Auto Hide/Show the Dock feature.
06. Close the Dock Settings Window.
After the Dock is hidden from your Mac desktop, the WindowServer Process CPU Consumption will be reduced by a few percentage. You can check that change in your Mac’s Activity Monitor.
04. Disable Automatic Rearrange of Spaces
Virtual Desktop Environment is a feature provided in Mac System. If you are using Spaces, they may get rearranged by themselves. Because of this setting in Mission Control, WindowServer takes high CPU usage. You can get your CPU usage back to normal by disabling the automatic rearrange of spaces on Mac. Please follow the simple steps mentioned below:
01. On your Mac, go to Apple Menu.
02. Select “System Preferences” to open a new window.
03. Click on “Mission Control” icon to open its settings window.
04. Find out the option “Automatically rearrange spaces based on most recent use.”
05. Disable Auto Rearrange of Spaces in Mission Control Settings.
When you disable Automatically rearrange spaces option, it will make a little reduction in WindowServer Process CPU usage on Mac.
05. Turn Off Separate Spaces for Displays
Mac Computer allows the user to setup multiple displays for one system. But it can be the cause of WindowServer Process high CPU usage if each display has a separate space. Every space takes some amount of CPU and memory. As a result, WindowServer takes high CPU usage for multiple displays have separate spaces. That’s why you should turn off this feature on your Mac. Kindly follow the steps given below to turn off separate spaces for displays in Mac system:
01. On your Mac desktop, open Apple Menu.
02. Select “System Preferences” tab.
03. Find and Select “Mission Control” icon in System Preferences.
04. On Mission Control Settings Window, find out “Display have separate spaces” option.
05. Un-check (remove the tick from) Display have separate spaces. Tickler stock watch app for mac computer.
06. This setting requires log out to take effect on your Mac.
07. Log out from your Mac and Log in again.
Now the multiple displays don’t have separate spaces on Mac. Therefore the WindowServer Process will take less CPU usage than earlier.
Mac High Sierra Messages App High Cpu FreeSome Other Techniques to prevent WindowServer Process from taking High CPU Usage on Mac
You need to take some tiny steps to prevent the WindowServer Process high CPU usage on Mac. Here we provide important instructions for the Mac users as follows:
Final Words:
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All the information mentioned above about What is WindowServer Process on Mac is true and fair. The methods we have shared here are completely working on every Mac system. For more queries regarding how to prevent WindowServer Process high CPU usage on Mac, kindly contact the Apple Helpline Number at 1-800-MY-APPLE (800-692-7753) or visit Apple Support Website at support.apple.com.
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