Are the users local account to the server or network accounts with home folders on another server?
What version of ubuntu? On Thu, 2009-10-29 at 09:04 -0700, john 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. > > r...@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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