Fwd: Laptop performs really slow when running from wifi

Asif Iqbal vadud3 at gmail.com
Wed Nov 21 01:33:34 UTC 2007


Resending without the attachment to meet size restrcition


---------- Forwarded message ----------
From: Asif Iqbal <vadud3 at gmail.com>
Date: Nov 20, 2007 7:58 PM
Subject: Re: Laptop performs really slow when running from wifi
To: "Ubuntu user technical support, not for general discussions"
<ubuntu-users at lists.ubuntu.com>


On Nov 20, 2007 4:56 PM, Asif Iqbal <vadud3 at gmail.com> wrote:
> On Nov 20, 2007 12:03 PM, David Curtis <dcurtis at uniserve.com> wrote:
> >
> >
> > On Nov 20, 2007 8:24 PM, Asif Iqbal <vadud3 at gmail.com
> > > <mailto:vadud3 at gmail.com>> wrote:
> > >
> > >     Anyone else have any suggestion as to why my laptop crawls after
> > >     running for a while on ONLY wifi?
> > >
> > >     Should I downgrade it to feisty fawn? I had no problem with wifi there.
> > >
> > >     What is the simple way to downgrade?
> > >
> > >
> >
> > I would assume that since your mouse "flickers" and screen refresh is
> > slow that something is consuming a large amounts of cpu. Run 'top' or
> > 'htop' in a terminal (or tty, ctrl-alt-f1, ctrl-alt-f7 to return to
> > Xorg). The offender should be at the top of the list.
>
> I am almost positive it was X on the top of the htop list. I will run it again
> tonight and report back here.
>

My laptop got slow again. Mouse flickers soo much and screen refresh sooo slow
that this laptop becomes useless until I reboot

I finish typing and then I see the characters are showing up. Really rally slow

The `htop' shows like like the attachment.

Here is the output from `top'. Looks like Xorg could be culprit. What
does not make
sense is how it is related to wifi? It only happens when I am on wifi

 top - 19:55:23 up 41 min,  3 users,  load average: 0.67, 1.08, 1.00
Tasks: 135 total,   2 running, 133 sleeping,   0 stopped,   0 zombie
Cpu(s):  7.0%us, 62.7%sy,  0.0%ni, 30.3%id,  0.0%wa,  0.0%hi,  0.0%si,  0.0%st
Mem:   1547560k total,   864960k used,   682600k free,    16444k buffers
Swap:  1485972k total,        0k used,  1485972k free,   558292k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 5925 root      15   0  337m  22m 7304 R 69.5  1.5   6:52.82 Xorg
    1 root      15   0  2948 1856  532 S  0.0  0.1   0:02.33 init
    2 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 kthreadd
    3 root      RT  -5     0    0    0 S  0.0  0.0   0:00.00
migration/0
    4 root      34  19     0    0    0 S  0.0  0.0   0:00.00
ksoftirqd/0
    5 root      RT  -5     0    0    0 S  0.0  0.0   0:00.00
watchdog/0
    6 root      10  -5     0    0    0 S  0.0  0.0   0:00.01 events/0
    7 root      10  -5     0    0    0 S  0.0  0.0   0:00.02 khelper
   26 root      12  -5     0    0    0 S  0.0  0.0   0:00.00 kblockd/0
   27 root      10  -5     0    0    0 S  0.0  0.0   0:01.27 kacpid
   28 root      11  -5     0    0    0 S  0.0  0.0   0:01.27
kacpi_notify
  186 root      10  -5     0    0    0 S  0.0  0.0   0:00.06 kseriod
  207 root      11  -5     0    0    0 S  0.0  0.0   0:00.00 kswapd0
  258 root      11  -5     0    0    0 S  0.0  0.0   0:00.00 aio/0
 2059 root      10  -5     0    0    0 S  0.0  0.0   0:00.00
ksuspend_usbd
 2060 root      10  -5     0    0    0 S  0.0  0.0   0:00.00 khubd
 2217 root      15  -5     0    0    0 S  0.0  0.0   0:00.00 ata/0
 2218 root      13  -5     0    0    0 S  0.0  0.0   0:00.00 ata_aux
 2231 root      15  -5     0    0    0 S  0.0  0.0   0:00.00 scsi_eh_0
 2232 root      15  -5     0    0    0 S  0.0  0.0   0:00.00 scsi_eh_1
 2512 root      10  -5     0    0    0 S  0.0  0.0   0:00.35 kjournald
 2775 root      11  -4  3044 1392  408 S  0.0  0.1   0:00.49 udevd
 3749 root      13  -5     0    0    0 S  0.0  0.0   0:00.00 kpsmoused
 3793 root      16  -5     0    0    0 S  0.0  0.0   0:00.02 kmmcd
 3803 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 pccardd
 3804 root      10  -5     0    0    0 S  0.0  0.0   0:00.26 ipw2200/0
 3809 root      20  -5     0    0    0 S  0.0  0.0   0:00.00 tifm
 3842 root      20  -5     0    0    0 S  0.0  0.0   0:00.00
irda_sir_wq
 4301 daemon    15   0  1816  508  412 S  0.0  0.0   0:00.00 portmap
 4322 statd     19   0  1876  716  616 S  0.0  0.0   0:00.00 rpc.statd
 4565 root      18   0  1696  520  448 S  0.0  0.0   0:00.00 getty
 4566 root      18   0  1696  520  448 S  0.0  0.0   0:00.00 getty






> >
> > Dave
> >
> > --
> >
> > ubuntu-users mailing list
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> >
>
>
>
> --
>
> Asif Iqbal
> PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu
>



--
Asif Iqbal
PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu



-- 
Asif Iqbal
PGP Key: 0xE62693C5 KeyServer: pgp.mit.edu




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