Possible memory leak
We rent a linux server with 3gb of ram, the server usually sits at around 2.5-2.6gb of usage but has been steadily inclining over the last week or so to the point where it was dragging along 98-100% most of the day today. I restarted the server and it's now back down to 2.5gb usage. I upgraded our server to 4gbs and I'm not even sure it was needed now. I know that the more stuff we build, the more resources are required, but nothing explains the 500mbs of ram usage that just went away after a restart.