I have problems when I leave computer on during the night, when I resume it in the morning, it becomes very slow, I often wait for few minutes until login form renders, when I login, apps freeze randomly and I must restart it in order to work normally.
What can be the problem?
Solution as extracted from the comments:
Steps to find the cause involve checking...
top to look at the processes using most of it)iotop from the iotop package proves helpful)In most cases, one of these two steps identify the process lagging the system. Depending on what it is, further actions can be evaluated (stopping/killing that process or, as in this case, re-organize cron jobs causing heavvy activity to not have them all run at the same time in parallel).
