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Re: Why is my load ave so high now?



On 07/24/2009 10:15 AM, Aaron Konstam wrote:
On Thu, 2009-07-23 at 22:51 -0400, Kevin J. Cummings wrote:
When I was running F8, my server averaged a load ave oof around 4.

Now that I'm running F10, and bittorrent is no longer running, in fact,
not much of anything besides Seti Home  (BOINC client running
astro_pulse), my load average is up around 11 and frequently exceeds 12
(and of course when it exceeds 12, it stops receiving emails).  Here's a
5 second snapshot from top:

top - 22:48:06 up 2 days, 18:51,  5 users,  load average: 11.15, 11.33, 11.63
Tasks: 250 total,   2 running, 247 sleeping,   0 stopped,   1 zombie
Cpu(s):  5.9%us,  1.8%sy, 92.0%ni,  0.0%id,  0.0%wa,  0.3%hi,  0.0%si,  0.0%st
Mem:   2074172k total,  1932680k used,   141492k free,   108872k buffers
Swap:  3911816k total,      552k used,  3911264k free,   977568k cached

   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
  3234 root      39  19 50292  46m 2072 R 91.7  2.3   3520:10 astropulse_5.06
What is astropulse that is using 91.7% of your cpu? You also seem to
have a large number of tasks running and sleeping which might up your
load average.

astropulse is the SETI Home BOINC client that I run (NICEd to 19).
It only uses "excess cycles" and in the past my load average has never exceed the 3-5 range, except when I was doing "real" work on the system (like running firefox, thunderbird, and other real programs), something I almost never do anymore since I bought myself a laptop.

Yeup, but not consuming any real CPU resources.

I guess what I'm asking is if only 1 job is grabbing most of the CPU, then what's causing the system to thrash? (Is a load average of 12 considered a thrashing system? sendmail thinks it is.)

  3378 root      20   0  324m  36m 8496 S  3.6  1.8  14:34.20 Xorg
16271 cummings  20   0  172m  60m  21m S  1.1  3.0   0:37.77 thunderbird-bin
  4026 cummings  20   0 22412  11m 7612 S  0.5  0.6   0:09.28 metacity
  4108 cummings  20   0 27276  11m 8748 S  0.4  0.6  18:41.47 multiload-apple
  4126 cummings  20   0 74844  18m  10m S  0.4  0.9   0:07.54 gnome-terminal
  4027 cummings  20   0 63536  20m  10m S  0.3  1.0   0:27.59 gnome-panel
  4030 cummings  20   0 34104  13m 5500 S  0.3  0.7   0:24.95 gnome-screensav
16252 root      20   0  2560 1184  844 S  0.3  0.1   0:00.97 top
  4086 cummings  20   0 57960  14m 9716 S  0.2  0.7   0:06.57 wnck-applet
  4093 cummings  20   0 34464  14m  10m S  0.2  0.7   5:31.08 clock-applet
   196 root      15  -5     0    0    0 S  0.1  0.0   1:08.89 ata/0
   971 root      15  -5     0    0    0 S  0.1  0.0   3:38.03 scsi_eh_5
  2838 root      20   0  3332  520  364 S  0.1  0.0   0:05.12 lircd
  3138 root      20   0  3624 1032  912 S  0.1  0.0   0:14.66 hald-addon-stor
  3175 root      20   0  3624 1032  912 S  0.1  0.0   0:37.94 hald-addon-stor
  3194 mailman   20   0 13620 7000 2820 S  0.1  0.3   0:53.14 python
  3879 cummings  20   0 58964  30m 8092 S  0.1  1.5  21:56.13 gnome-settings-
  4478 cummings  20   0 10044 4432 2376 S  0.1  0.2   0:01.48 xterm

--
Kevin J. Cummings
kjchome rcn com
cummings kjchome homeip net
cummings kjc386 framingham ma us
Registered Linux User #1232 (http://counter.li.org)


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