Sorry za pozdní odpověď. Tady je výsledek ze zmíněných programů:
top - 13:03:14 up 17 min, 2 users, load average: 0.37, 0.80, 0.71
Tasks: 185 total, 1 running, 184 sleeping, 0 stopped, 0 zombie
Cpu(s): 14.6%us, 4.3%sy, 0.0%ni, 80.4%id, 0.7%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 509160k total, 499332k used, 9828k free, 9644k buffers
Swap: 931760k total, 168052k used, 763708k free, 85696k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
749 root 20 0 158m 99m 3000 S 6.6 19.9 2:13.23 Xorg
1255 user 20 0 209m 34m 13m S 5.3 6.9 0:49.09 konqueror
1205 user 20 0 339m 32m 15m S 2.0 6.5 0:33.00 plasma-desktop
1200 user 20 0 275m 16m 11m S 1.6 3.4 0:44.40 kwin
2597 user 20 0 74512 19m 15m S 0.7 3.9 0:01.43 kdesu
1066 user 20 0 3708 1820 636 S 0.3 0.4 0:07.25 dbus-daemon
1269 user 20 0 204m 45m 15m S 0.3 9.1 0:12.81 kontact
1279 user 20 0 186m 4832 2284 S 0.3 0.9 0:01.17 mysqld-akonadi
2600 user 20 0 2544 1220 896 R 0.3 0.2 0:00.41 top
1 root 20 0 2796 1248 896 S 0.0 0.2 0:00.37 init
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root RT 0 0 0 0 S 0.0 0.0 0:00.00 migration/0
4 root 20 0 0 0 0 S 0.0 0.0 0:00.00 ksoftirqd/0
5 root RT 0 0 0 0 S 0.0 0.0 0:00.00 watchdog/0
6 root 20 0 0 0 0 S 0.0 0.0 0:00.03 events/0
7 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuset
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 khelper
9 root 20 0 0 0 0 S 0.0 0.0 0:00.00 netns
10 root 20 0 0 0 0 S 0.0 0.0 0:00.00 async/mgr
11 root 20 0 0 0 0 S 0.0 0.0 0:00.00 pm
12 root 20 0 0 0 0 S 0.0 0.0 0:00.00 sync_supers
13 root 20 0 0 0 0 S 0.0 0.0 0:00.00 bdi-default
14 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kintegrityd/0
15 root 20 0 0 0 0 S 0.0 0.0 0:00.03 kblockd/0
16 root 20 0 0 0 0 S 0.0 0.0 0:00.28 kacpid
17 root 20 0 0 0 0 S 0.0 0.0 0:00.50 kacpi_notify
18 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kacpi_hotplug
19 root 20 0 0 0 0 S 0.0 0.0 0:00.12 ata/0
20 root 20 0 0 0 0 S 0.0 0.0 0:00.00 ata_aux
21 root 20 0 0 0 0 S 0.0 0.0 0:00.00 ksuspend_usbd
user@notebook:~$ free -m
total used free shared buffers cached
Mem: 497 491 5 0 1 113
-/+ buffers/cache: 376 121
Swap: 909 209 700
Jak vidíte, podle výpisu všechny procesy dohromady zabírají ztěží 50% RAM, přesto je podle dalšího výpisu celá RAM zabraná.