A while back I bought a 3 year family plan on crashplan. I did evaluate the largest online backup services and crashplan was a perfect fit for my needs, multiplatform, cheap and ability to backup network drives. At the time I bought the crashplan subscription I was running Leopard on my primary workstation and crashplan did play fine together with it. When I later upgraded to Snow leopard my computer started to feel slow and sluggish when it actually should be faster. I finally took time to do some investigating to find out that a java process was eating memory like crazy. 64-bit java apparently eats double amount of ram compared to the 32-bit version. Well I should have known better then to choose a backup client written in java, such background process shouldn’t need more than 5Mb memory. I quick fix that makes i bearable is to force the client to run in 32-bit.

Edit the following file:

/Library/LaunchDaemons/com.crashplan.engine.plist

Add the following line:

<string>-d32</string>

After this line:

<string>/usr/bin/java</string>

Save the file then restart the backup client by running the following command in terminal:

sudo launchctl unload /Library/LaunchDaemons/com.crashplan.engine.plist
sudo launchctl load /Library/LaunchDaemons/com.crashplan.engine.plist