Next, hit Return to open Activity Monitor. Way 3: Press the Command + Space keys to launch Spotlight Search and then enter Activity Monitor into the search box. Way 2: Open Launchpad from the Mac Dock > Other > Activity Monitor. Way 1: Open Finder > Applications > Utilities > Activity Monitor. There are multiple methods for you to launch Activity Monitor. If you fail to open Activity Monitor in a certain way, you can change to use another. Try another way to launch Activity Monitor After rebooting, check if you can reopen Activity Monitor and check if it is back to normal. To restart your Mac, just close all opened apps on your Mac and then go to the Apple menu > Restart. Restarting the Mac is the simplest way to refresh the system and fix the temporary errors that may lead to Activity Monitor not opening, loading, or responding. If Activity Monitor can't be launched or behaves abnormally, the first trick you can try is to restart your Mac. If you can't launch and load Activity Monitor on your Mac, or you can open Activity Monitor but find it won't make any responses or just shows a blank screen, you can troubleshoot it with these workarounds. Here is the LaunchDaemon plist that I have been using to collect this information in the background on my test machines.Ĭom.Ĭom. Monitor is not opening/working, follow these ways This will give you relative performance statistics to help determine the qualitative “feel” and “slowness” an application may be causing. Compare native processes like WindowServer, Safari, and Mail to the target application.A simple example would be: “reboot, immediately run target application, perform X task in target application, stop log collection” Create a repeatable testing plan so you can change variables and maintain data integrity.Use some analysis tool like Splunk, Kibana, or event Excel instead of trying to read the logs manually.If the application you are testing uses a kernel extension be sure to chart kernel_task with that KEXT loaded and without that KEXT loaded.While we have since moved to more advanced ways to collect energy impact and performance telemetry for cmdReporter’s internal testing, I have run the above command as a LaunchDaemon on my own machine for months at a time without noticing any additional overhead.
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