Under OS X Mavericks and below we just could
launchctl unload the dynamic_pager plist, but trying to unload this plist doesn't have any effect since OS X Yosemite.
What is the new way to disable swap files now with OS X Yosemite?
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Have you tried something like this?
# Check installed RAM, disable VM if 8Gb or more. mem_inst=`/usr/sbin/sysctl -n hw.memsize` if [ "$mem_inst" -ge "8589934592" ]; then echo "8Gb+ Memory installed." if [ "$action" == "unload" ]; then sudo nvram boot-args="vm_compressor=2" sudo pmset -a hibernatemode 0 echo "vm.compressor_mode set to 2" else sudo nvram boot-args="vm_compressor=4" sudo pmset -a hibernatemode 3 echo "vm.compressor_mode reset to defaults" fi launch_control $action /System/Library/LaunchDaemons com.apple.dynamic_pager else echo "Less than 8Gb memory." fi
This isn't something I wrote, was information I found.
Here's what I do:
sudo pmset -a hibernatemode 0
(disables hibernation mode)
sudo rm -rf /private/var/vm/.
*(removes existing swap files)
sudo chflags uchg /private/var/vm/
(locks down the swapfile directory, prevents anything from being written to the folder)
As others have said, though, please only do this if you know what you're doing.