[EDIT] I should have called this: xubuntu boots up and runs slowly sometimes, quickly sometimes
The problem: after I boot the computer up, sometimes is runs incredibly slowly, and other times it runs at normal speed. The pattern I have noticed so far is that when I boot it up for the first time in a while (for instance, after a couple days), it runs incredibly slowly, so slow that when I try to move the pointer around with the mouse, it lags. Once I shut it down, and boot back up again, it runs at a normal speed.
The context of the problem: I have just (less than a week ago) installed xubuntu on a machine to replace a broken windows 2000 system that was broken due to a virus. On the installation, I decided to completely get rid of the windows 2000 partition so that it was all xubuntu. When I was installing from the live CD, it also ran extremely slow.
Xubuntu version: 10.04 LTS
Architecture: Intel i386*
Processor: AMD Athlon(tm) XP 2200+
Processor Speed: I think it is 1800 MHz, although I am not sure.
*I did not download the 64 bit installer (AMD64) even though the processor is an AMD. I do not think that the "AMD Athlon(tm) XP 2200+" is 64 bit, but I don't know.
The computer is on a windows network (I belive it is the only linux computer). The internet connection is "Auto eth0".
Attached are two screenshots.
The screenshot named slow.jpg shows all of the processes that were running (according to the system monitor) and their other stats (like CPU usage, Memory usage) about 2 minutes after boot up. The screenshot slow.png was taken on one of the "slow" bootups.
The screenshot named fast_to_slow_comparison.jpg shows all of the processes that were running about a minute after the fast boot up with their stats and it has an added column to show how much memory (RAM) the same process used during the "slow" boot up. It also has some statistics written (total memory and swap usage). The 30% was not the RAM usage after on minute, but after 30+ minutes. After one minute, the RAM usage was about 50%-60% (there is a note of this in the image itself also).
The exact same processes were running during the "slow" and "normal speed/fast" bootup. I did have the home folder open during the "fast to slow comparison," but it did not add another process because there was also a thunar process during the "slow" screenshot.
One strange thing I noticed was that during the "normal speed/fast" bootup, all but two of the processes were using more RAM than they used in the "slow" bootup.
If you have any further questions or any advice, let me know.
Thanks in advance.