Around the Mac OS X 10.10 Yosemite upgrade from 10.9, I noticed that Activity Monitor.app would refuse to remember any column preferences. Switching between tabs such as CPU and Memory would even reset any changes.
This bad behavior continued through 10.11 El Capitan, so I finally snapped and spent a couple minutes poking around and have a fix to share for anyone else who is plagued by this issue. All I had to do to fix the issue was clear the Activity Monitor defaults to force a reset with the following command.
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defaults delete -app "Activity Monitor" |
Data rot is the scourge of modern day computing. When I think of the ~2 million files on my iMac, from photos and videos to school reports dating back to the 90s, it’s disturbing to think that those virtual memories could become corrupt at any time without any warning. Continue reading →
Thinking about using your router with dd-wrt to run all of your home connections through a VPN such as OpenVPN? Don’t bother unless your router has an insanely powerful CPU. I learned this lesson the hard way when I decided to flash my TP-LINK WDR3600 (N600) with dd-wrt. 10-14mbps is all that the device seems to be able to handle on its 560MHz AR9344 CPU before maxing out. I have a 100mbps connection and that is a massive performance penalty.
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Run the following command in Terminal to stop OS X Yosemite 10.10 from rearming Gatekeeper. Normally, Gatekeeper will rearm itself after 30 days.
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sudo defaults write /Library/Preferences/com.apple.security GKAutoRearm -bool NO |
Around the Mac OS X 10.10 Yosemite upgrade from 10.9, I noticed that Activity Monitor.app would refuse to remember any column preferences. Switching between tabs such as CPU and Memory would even reset any changes.