svchost can be one of any number of Windows services. It can grow especially large when some kind of update is running.
If you need more detail on the specific process, install Process Explorer:http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx
If you're going to reply, please at least read the OP.
svchost is normally quite large. That's nothing out of the ordinary. I was using Chrome as a comparison.
What you can do is right click on each instance of svchost and click properties and make sure they are in C:\Windows\System32. If they are not runnning from that folder, you have some type of malware. Otherwise, it's a normal windows process
Thanks. A spike so massive made me fairly suspicious. Maybe my computer just needs a clean and slow svchost isn't making it slow.