I recently decided against shutting down my Ubuntu machine in office because it took a lot of time to start it and then open all the applications that I would normally require.
After leaving the PC open for a couple of days and coming to use it, the computer was considerably slow. It remained slow for several minutes while I was doing some routine processes and then it caught up. Here is the output of
top - 10:40:46 up 3 days, 18 min, 1 user, load average: 0.66, 1.47, 1.42 Tasks: 396 total, 1 running, 330 sleeping, 0 stopped, 1 zombie %Cpu(s): 3.9 us, 0.6 sy, 0.0 ni, 95.5 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem : 16331284 total, 476144 free, 13993084 used, 1862056 buff/cache KiB Swap: 2097148 total, 628732 free, 1468416 used. 971580 avail Mem
I want to know why this happens and additionaly how to stop it from happening, also interested in how it improves its performance after some time. I would also like to know how to analyze these things on my own