I'm using a VPS from a hosting provider. My VPS has 6 cores. In the past few weeks, i usually used upto about 4-6 cores at any time point. My web pages used to load very fast (about 2-4 seconds). But suddenly today (for the whole day), my CPU usage is only about less than 2, and my page load time is usually about 10 seconds. So now i'm confused, not sure what is happening to my server.
My guess is that other users abuse the server, used up all cores so that my CPU usage rarely exceeded 2 (while my quota is 6).
So my question is: From my VPS, can i check the resource usage (CPU) of the machine that host my VPS ?
Thank you very much.