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Snow Leopard Virtual Memory: Disabling It

Snow Leopard Virtual Memory: Disabling It

This article is about halting the Snow Leopard dynamic pager daemon to stop using any virtual memory. It is best that you don’t try it on earlier OS X versions. It works great on Snow Leopard and gives many advantages without any issues.

Even if you are using a Mac Book Pro, there are many problems that come up almost everyday, particularly about the disk activity. The paging actions of OS X might be responsible for the slowdown of your system. There is no doubt that the disk is a weak entity in the Mac Book Pro 2010, and as the OS X creates new swap files, everything slows down.

For this reason, you have to try and minimize disk swapping. It is easy to turn off virtual memory in Snow Leopard. Go to the terminal and type this line:

sudo launchctl unload -w /System/Library/LaunchDaemons/com.apple.dynamic_pager.plist

Now restart your system.

If you later want to activate it again, just use the above line with option of ‘load’ instead of ‘unload’.

You will notice speed increase and the difference will be immediately visible. As soon as the dynamic page daemon is disabled and the computer is restarted, you will notice that your system has gained a lot of speed, and is much more responsive. You can try opening some programs to check the responsiveness. For example, Firefox will open up really fast and be much more active.

If you have OS X 10.6 and a minimum of 4 GB RAM, disable the virtual memory and experience a new and faster Mac.

Do you work on Snow Leopard? What do you think about this tip? This can speed up your computer significantly. Try it out and let us know how it went.

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