load average 34.73 !

Thu Oct 29 21:08:08 GMT 2009

Hi Joseph,

I didn't see your lts.conf when I followed the link you sent me, but I
did find this

https://help.ubuntu.com/community/UbuntuLTSP/LTSPLocalAppsFirefox

I take it that you wrote that howto. Any idea weather it works under
8.04? I understand local app support is a newer feature.

Thanks!

John

On Thu, Oct 29, 2009 at 10:29 AM, Joseph Hartman <jlhartman at gmail.com> wrote:
> Have you already included the
>
> LDM_DIRECTX=true
>
> parameter under the Default section of your lts.conf file?
>
> I've got a similar setup to yours and have firefox set up as a local app. My
> lts.conf is posted here:
> http://hartmansblog.blogspot.com/2009/09/resolution-issues-in-ltsp.html
>
> On Thu, Oct 29, 2009 at 9:04 AM, john <lists.john at gmail.com> wrote:
>>
>> Hi all,
>>
>> I am running 4 cores with 16 G ram.  I have a single 1G nic serving 45
>> stations.
>> Right now I have 38 users on and my load average is 34.73
>> I've seen it spike to 70. I've pasted an excerpt from TOP below.
>>
>>
>> top - 08:44:10 up 1 day, 14:56, 38 users,  load average: 34.73, 34.76,
>> 21.83
>> Tasks: 1438 total,  10 running, 1426 sleeping,   0 stopped,   2 zombie
>> Cpu(s): 64.8%us, 21.3%sy,  4.6%ni,  0.8%id,  6.1%wa,  0.1%hi,  2.4%si,
>>  0.0%st
>> Mem:  16632608k total,  9663840k used,  6968768k free,   406064k buffers
>> Swap:  9936160k total,        0k used,  9936160k free,  3951436k cached
>>
>>  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
>> 13847 auer_saw  20   0  228m  98m  27m R   45  0.6   1:05.38 firefox
>> 21212 murphy_c  20   0  273m 110m  26m S   29  0.7   0:39.00 firefox
>>  5203 clements  20   0  159m  59m  21m D   27  0.4   0:14.52 firefox
>>  4883 hembree_  20   0  373m 181m  28m R   26  1.1   2:05.64 firefox
>> 27114 parks.ta  20   0  248m 106m  25m S   18  0.7   1:53.48 firefox
>> 24714 smith_ni  35  15 35836  19m  12m R   17  0.1   1494:26
>> gnome-panel
>> 19552 straube.  20   0  162m  61m  22m S   13  0.4   0:04.91 firefox
>>  3344 weber_my  20   0  266m 108m  25m S   10  0.7   1:23.35 firefox
>> 13935 challman  20   0  280m 130m  26m S   10  0.8   2:40.12 firefox
>>
>> I ran vmstat and I see that I have lots of interrupts and context
>> switches, and also processes waiting for attention.
>>
>> root at vbuntu:/var/log# vmstat 5 200
>> procs -----------memory---------- ---swap-- -----io---- -system--
>> ----cpu----
>>  r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id
>> wa
>>  1  1      0 9555716 420520 4682252    0    0     7    28   73   47 18  1
>> 80  1
>>
>> 10  1      0 9550352 420572 4676348    0    0   562  3374 4284 17322 45 21
>> 25  9
>>  1  1      0 9595204 420600 4683272    0    0  1221  1410 3730 6236 45 14
>> 30 11
>>  1  0      0 9655864 420624 4677924    0    0   550  1334 4091 8094 44  9
>> 39  8
>>  2  2      0 9654436 420628 4677756    0    0     0  2533 3836 6361 30  5
>> 60  5
>>  4  0      0 9743600 420652 4677408    0    0     0   166 3663 5912 33  6
>> 61  0
>>  1  1      0 9816940 420672 4681848    0    0   439   202 3421 5607 35  7
>> 49  9
>>  3  1      0 9775504 420708 4693380    0    0  1000  1069 3771 4855 39  6
>> 38 16
>>  4  0      0 9742368 420716 4688016    0    0   105  2130 3539 4844 36  5
>> 55  4
>>  4  0      0 9754888 420716 4688128    0    0     0   222 3389 5058 32  4
>> 64  0
>>  1  0      0 9756060 420720 4688072    0    0     0    82 2947 3813 26  4
>> 70  0
>>  1  0      0 9881396 420736 4688160    0    0     0   218 3683 6299 36  8
>> 57  0
>>  1  0      0 9881144 420744 4688208    0    0     0   124 3006 3872 28  3
>> 69  0
>>  1  2      0 9865324 420756 4699228    0    0   198  2128 3130 3660 36  5
>> 50  9
>>  1  0      0 9871528 420776 4690000    0    0   134  2975 3532 3999 39  7
>> 47  7
>>  4  0      0 9874736 420800 4691984    0    0    22   142 3323 3826 30  3
>> 66  0
>>  2  0      0 9842856 420828 4706212    0    0   162  3079 3330 3998 51  6
>> 37  6
>>  4  0      0 9830752 420872 4710852    0    0    58  1092 3156 3737 54  4
>> 41  1
>>  1  0      0 9846836 420876 4693096    0    0    38   388 3471 5125 43  4
>> 52  0
>>  1  0      0 9847376 420876 4693104    0    0     0  3789 3805 5539 30  5
>> 60
>>
>> As you can imagine the user experience right now it not great. Can
>> anyone give me some ideas
>> about reducing load on the system?
>>
>> Thanks!
>>
>> John
>>
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