Liberar memoria en linux

[TheRipper]

aqui va lo que me pidieron :

ls -al /etc/rc2.d/
total 8
drwxr-xr-x 2 root root 4096 Nov 24 15:45 .
drwxr-xr-x 100 root root 4096 Nov 30 11:39 ..
lrwxrwxrwx 1 root root 17 Nov 24 15:01 K11anacron -> ../init.d/anacron
lrwxrwxrwx 1 root root 17 Nov 24 15:01 S05vbesave -> ../init.d/vbesave
lrwxrwxrwx 1 root root 18 Nov 24 08:13 S10sysklogd -> ../init.d/sysklogd
lrwxrwxrwx 1 root root 15 Nov 24 08:13 S11klogd -> ../init.d/klogd
lrwxrwxrwx 1 root root 14 Nov 24 08:13 S12alsa -> ../init.d/alsa
lrwxrwxrwx 1 root root 13 Nov 24 15:10 S13gdm -> ../init.d/gdm
lrwxrwxrwx 1 root root 13 Nov 24 08:12 S14ppp -> ../init.d/ppp
lrwxrwxrwx 1 root root 16 Nov 24 15:05 S19cupsys -> ../init.d/cupsys
lrwxrwxrwx 1 root root 15 Nov 24 15:01 S20acpid -> ../init.d/acpid
lrwxrwxrwx 1 root root 14 Nov 24 15:01 S20apmd -> ../init.d/apmd
lrwxrwxrwx 1 root root 16 Nov 24 15:01 S20dbus-1 -> ../init.d/dbus-1
lrwxrwxrwx 1 root root 15 Nov 24 08:12 S20inetd -> ../init.d/inetd
lrwxrwxrwx 1 root root 17 Nov 24 08:10 S20makedev -> ../init.d/makedev
lrwxrwxrwx 1 root root 17 Nov 24 08:12 S20postfix -> ../init.d/postfix
lrwxrwxrwx 1 root root 19 Nov 24 15:03 S20powernowd -> ../init.d/powernowd
lrwxrwxrwx 1 root root 15 Nov 24 08:12 S20rsync -> ../init.d/rsync
lrwxrwxrwx 1 root root 15 Nov 24 15:45 S20samba -> ../init.d/samba
lrwxrwxrwx 1 root root 15 Nov 24 08:12 S25mdadm -> ../init.d/mdadm
lrwxrwxrwx 1 root root 17 Nov 24 15:01 S89anacron -> ../init.d/anacron
lrwxrwxrwx 1 root root 13 Nov 24 08:13 S89atd -> ../init.d/atd
lrwxrwxrwx 1 root root 14 Nov 24 08:12 S89cron -> ../init.d/cron
lrwxrwxrwx 1 root root 22 Nov 24 15:01 S99acpi-support -> ../init.d/acpi-su pport
lrwxrwxrwx 1 root root 19 Nov 24 15:02 S99fetchmail -> ../init.d/fetchmail
lrwxrwxrwx 1 root root 19 Nov 24 08:10 S99rmnologin -> ../init.d/rmnologin
lrwxrwxrwx 1 root root 23 Nov 24 08:10 S99stop-bootlogd -> ../init.d/stop-b ootlogd


cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 11
model name : Intel(R) Celeron(TM) CPU 1300MHz
stepping : 1
cpu MHz : 1297.615
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 2
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 mmx fxsr sse
bogomips : 2572.28


glxinfo
Error: unable to open display (null)


lspci
0000:00:00.0 Host bridge: VIA Technologies, Inc. VT8601 [Apollo ProMedia] (rev 0 5)
0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8601 [Apollo ProMedia AGP]
0000:00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (r ev 40)
0000:00:07.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT82 3x/A/C PIPC Bus Master IDE (rev 06)
0000:00:07.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Contr oller (rev 1a)
0000:00:07.3 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Contr oller (rev 1a)
0000:00:07.4 Bridge: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40 )
0000:00:07.5 Multimedia audio controller: VIA Technologies, Inc. VT82C686 AC97 A udio Controller (rev 50)
0000:00:07.6 Communication controller: VIA Technologies, Inc. Intel 537 [AC97 Mo dem] (rev 30)
0000:00:08.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS)
0000:00:0b.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139C /8139C+ (rev 10)
0000:01:00.0 VGA compatible controller: Trident Microsystems CyberBlade/i1 (rev 6a)


cat /etc/modules
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.

ide-cd
ide-disk
ide-generic
lp
mousedev
psmouse


lsmod
Module Size Used by
proc_intf 4100 0
freq_table 4100 0
cpufreq_userspace 4572 0
cpufreq_ondemand 6172 0
cpufreq_powersave 1920 0
video 16260 0
sony_acpi 6280 0
pcc_acpi 11264 0
button 6800 0
battery 10244 0
container 4608 0
ac 4996 0
ipv6 229504 9
af_packet 20744 2
8139cp 19200 0
8139too 24320 0
mii 4736 2 8139cp,8139too
ne2k_pci 10080 0
8390 9984 1 ne2k_pci
snd_via82xx 25248 3
snd_ac97_codec 64608 1 snd_via82xx
snd_pcm_oss 47652 1
snd_mixer_oss 16768 3 snd_pcm_oss
snd_pcm 84872 3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd_timer 23300 1 snd_pcm
snd_page_alloc 9604 2 snd_via82xx,snd_pcm
gameport 4608 1 snd_via82xx
snd_mpu401_uart 7168 1 snd_via82xx
snd_rawmidi 22944 1 snd_mpu401_uart
snd_seq_device 8332 1 snd_rawmidi
snd 50276 9 snd_via82xx,snd_ac97_codec,snd_pcm_oss,snd_mixer _oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi ,snd_seq_device
soundcore 9824 4 snd
i2c_viapro 7436 0
i2c_core 21264 1 i2c_viapro
uhci_hcd 30224 0
usbcore 107384 2 uhci_hcd
pci_hotplug 30512 0
via_agp 9216 1
agpgart 31784 1 via_agp
floppy 54864 0
pcspkr 3816 0
rtc 12216 0
md 43856 0
dm_mod 53116 1
capability 5000 0
commoncap 7808 1 capability
tsdev 7488 0
evdev 9088 0
psmouse 19336 0
mousedev 11160 1
parport_pc 34372 1
lp 10792 0
parport 33480 2 parport_pc,lp
ide_cd 38532 0
cdrom 36508 1 ide_cd
ext3 120968 1
jbd 54168 1 ext3
ide_generic 1664 0
via82cxxx 12956 1
ide_disk 18176 4
ide_core 118988 4 ide_cd,ide_generic,via82cxxx,ide_disk
unix 26164 817
thermal 13576 0
processor 22708 1 thermal
fan 4612 0
fbcon 34048 0
font 8448 1 fbcon
bitblit 5120 1 fbcon
vesafb 6948 0
cfbcopyarea 3968 1 vesafb
cfbimgblt 3072 1 vesafb
cfbfillrect 3584 1 vesafb


con top el primero que salio fue Xorg y firefox, cuando cambio de pestaña en pestaña en firefox se medio alenta, y cuando abro el openoffice tarda en cargarse