I just came across something very strange, that I have yet to prove but would like to ask all of you out there if you have seen anything similar:
I'm using log shipping. Backup log from server-1. Copy files to server-2. Files are restored on server 2. Performance no server 2 is terrible, it's low on memory and on disk space. I compressed the folder where the transaction log files reside, suddenly my CPU utilizations drops to almost nothing. 
Is this because the server is paging less? I would assume so, but uncompressing files would surly cost some CPU too? I've never been so short on space where I had to compress the folder before...
Any comments would be appreciated.