My computer (Sony Vaio VPCF22S1E) has Inter Core i7 (2GHz) processor, 8GB RAM (details) . There are 2 operation systems on my PC . Windows 7 and Ubuntu. My computer's performance was great, a few months ago. But now it's very slow. Windows is faster than Ubuntu, but still Windows is really slow, too. Also, my battery is empty in 45-60 minutes
Actually, i'm not using Windows 7. I'm using Windows 2 or 3 hours in a week (I'm studing Computer Engineering and sometimes i need it, but generally i'm working with Ubuntu) .
I think there are a few applications which cause slowing down Ubuntu . My question:
- How can i list all applications which open currently ? Maybe they are slowing down my system ?
- Recently i'm using Ubuntu 11.10 32 bit. If i install 64bit version (my processor supporting 64bit) , has it more performance than 32 bit ?
- Should i remove Windows 7 from my PC ? I'll use Windows inside Ubuntu with a virtual machine, if i remove Windows 7.
Thank you,
Details:
Recently installed OS' : Ubuntu 11.10 (32Bit) , Windows 7 (64Bit)
Results of top:
top - 23:41:56 up 7:20, 2 users, load average: 0.11, 0.13, 0.12
Tasks: 206 total, 2 running, 204 sleeping, 0 stopped, 0 zombie
Cpu(s): 2.5%us, 0.8%sy, 0.0%ni, 96.6%id, 0.0%wa, 0.0%hi, 0.1%si,
0.0%st Mem: 8251444k total, 3104320k used, 5147124k free, 242688k buffers Swap: 0k total, 0k used, 0k free,
1782992k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1693 eray 20 0 404m 198m 39m S 10 2.5 10:15.15 compiz
1244 root 20 0 130m 108m 11m S 4 1.3 13:13.89 Xorg
4400 eray 20 0 382m 55m 21m S 3 0.7 37:49.09
plugin-containe
28933 eray 20 0 139m 16m 10m S 3 0.2 0:01.37
gnome-terminal
1720 eray 20 0 197m 32m 16m S 2 0.4 1:39.11 nautilus
1795 eray 20 0 109m 10m 7632 S 2 0.1 1:07.08 bamfdaemon
27742 eray 20 0 8368 1872 1360 S 2 0.0 0:41.08 wget
1655 eray 20 0 7240 3312 916 S 1 0.0 1:44.20
dbus-daemon
1199 root 20 0 0 0 0 S 0 0.0 0:01.62 flush-8:0
1894 eray 20 0 101m 29m 11m S 0 0.4 0:32.20
gwibber-service
1935 eray 20 0 86252 31m 10m S 0 0.4 0:43.29
ubuntuone-syncd
4307 eray 20 0 1098m 259m 35m S 0 3.2 54:21.65 firefox
28917 root 20 0 0 0 0 S 0 0.0 0:00.05
kworker/0:0
28995 eray 20 0 2792 1072 780 R 0 0.0 0:00.17 top
1 root 20 0 3316 1852 1264 S 0 0.0 0:02.08 init
2 root 20 0 0 0 0 S 0 0.0 0:00.02 kthreadd
3 root 20 0 0 0 0 S 0 0.0 0:10.40 ksoftirqd/0
6 root RT 0 0 0 0 S 0 0.0 0:00.00 migration/0
29 root 0 -20 0 0 0 S 0 0.0 0:00.00 cpuset
30 root 0 -20 0 0 0 S 0 0.0 0:00.00 khelper
31 root 0 -20 0 0 0 S 0 0.0 0:00.00 netns
33 root 20 0 0 0 0 S 0 0.0 0:00.02 sync_supers
34 root 20 0 0 0 0 S 0 0.0 0:00.00 bdi-default
35 root 0 -20 0 0 0 S 0 0.0 0:00.00 kintegrityd
36 root 0 -20 0 0 0 S 0 0.0 0:00.00 kblockd
37 root 0 -20 0 0 0 S 0 0.0 0:00.00 ata_sff
38 root 20 0 0 0 0 S 0 0.0 0:00.00 khubd
39 root 0 -20 0 0 0 S 0 0.0 0:00.00 md
41 root 20 0 0 0 0 S 0 0.0 0:00.00 khungtaskd
42 root 20 0 0 0 0 S 0 0.0 0:00.00 kswapd0
43 root 25 5 0 0 0 S 0 0.0 0:00.00 ksmd
44 root 39 19 0 0 0 S 0 0.0 0:00.00 khugepaged
45 root 20 0 0 0 0 S 0 0.0 0:00.00
fsnotify_mark
46 root 20 0 0 0 0 S 0 0.0 0:00.00
ecryptfs-kthrea
47 root 0 -20 0 0 0 S 0 0.0 0:00.00 crypto
55 root 0 -20 0 0 0 S 0 0.0 0:00.00 kthrotld
222 root 0 -20 0 0 0 S 0 0.0 0:00.00 firewire
229 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_0
231 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_1
232 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_2
233 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_3
234 root 20 0 0 0 0 S 0 0.0 0:01.02 scsi_eh_4
235 root 20 0 0 0 0 S 0 0.0 0:00.00 scsi_eh_5
275 root 20 0 0 0 0 S 0 0.0 0:01.51 jbd2/sda5-8
276 root 0 -20 0 0 0 S 0 0.0 0:00.00
ext4-dio-unwrit
330 root 20 0 2648 612 452 S 0 0.0 0:00.49 upstart udev-br
335 root 20 0 3100 1496 740 S 0 0.0 0:00.39 udevd
453 root 0 -20 0 0 0 S 0 0.0 0:00.00 cfg80211
523 root 0 -20 0 0 0 S 0 0.0 0:00.00 kpsmoused
587 root 0 -20 0 0 0 S 0 0.0 0:00.00 l2cap
609 root 0 -20 0 0 0 S 0 0.0 0:00.00 hd-audio0
Here are your answers:
Open System Monitor and see what is the memory consumption and which process is eating away your CPU. You can also get similar results using "top" command in the terminal. It will show you which process is running frequently.
You have good laptop configuration. Since you are using 32bit Ubuntu, your OS will not be able to take advantage memory beyond 3Gb ( Since you are CS student, I think you will figure it out why). You will not get noticeable performance improvement by using 64Bit Ubuntu.
Your Windows 7 installation on different partition does not have any impact on your Ubuntu's performance. So there is no need of removing it, unless you want to completely switch to Ubuntu.
There are many ways to see what programs are currently running, System Monitor is included default in Ubuntu, you can also use the command top in the Terminal. you can change what programs startup in Startup Applications. all of these programs you can find in the Ubuntu Dash.
Thats odd that your computer is running slowly with that kind of CPU and that much memory. Maybe somethings up with your hard drive which is causing a slowdown? a 64-Bit Operating System can defiantly improve performance, be careful with comparability of software though. i recommend it however.
Have you added any extra hardware or removed any since you started noticing the performance problems?
Again check your hard drives health, check BIOS Settings make sure nothing important is disabled. make sure you have proper graphics drivers installed in the Additional Drivers Tool. you may want to follow the tips from http://linux-software-news-tutorials.blogspot.com/2011/03/how-to-speed-up-ubuntu.html or
i honestly don't think running Windows 7 in a Virtual Machine would help all that much.
a Reinstall and Reformat should defiantly help.