Ever since a few days ago, I notice mainly when my MBP is not connected to the internet, that istat will show a process called "DirectoryService" that is taking up a ridiculous amount of CPU power (sometimes up to 190%). It doesn't seem to slow my computer down much, but I can tell it's stressing the processor as it becomes extremely hot when this process is running. When I open terminal it shows this is a root process. Like I said, it only seems to occur when my computer is offline. Any idea what this is?