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[cobalt-users] RaQ4 -- High Load Average - No Explanation



Hi All,

I have several RaQ3 and RaQ4 servers.  On one particular server, I get a
consistently high loadaverage of above 2.00.  I cannot figure out where the
load is coming from.  When I view top, I do not see any thing outstanding.
PSTREE shows a normal, average amount of processes.  CPU usage is low, and
memory swap is low.  Both are indicators of good performance..  Yet, the
load average stays consistently above 2.00.

I shut down the ASP engine and tested the load average, but that did not
make a difference.   I then restarted ASP and then shut down HTTPD and
tested the load average.  Still above 2.00.  I have seen MySQL processes
increase the load average on a server, but pstree shows only a few MySQL
processes running -- not enough to account for this high average.  Also,
sendmail processes seem light and this doesn't seem to account for the high
load average.

I have posted a copy of TOP and PSTREE below.  If anyone has an idea why the
load average is consistenly above 2.00 on this server, please let me know.
My other RaQs are configured exactly the same as this one, yet the load
average is under 0.25 on average.

Thanks,
Bill

RaQ4 results  of TOP

10:53am  up 10 days, 19:32,  2 users,  load average: 2.01, 2.08, 2.09
80 processes: 79 sleeping, 1 running, 0 zombie, 0 stopped
CPU states:  2.0% user,  4.8% system,  0.0% nice, 93.1% idle
Mem:   257816K av,  210576K used,   47240K free,  213312K shrd,   32220K
buff
Swap:  131532K av,    3020K used,  128512K free                  107624K
cached
Which User (Blank for All):
  PID USER     PRI  NI  SIZE  RSS SHARE STAT  LIB %CPU %MEM   TIME COMMAND
 3530 root      10   0   880  880   668 R       0  4.0  0.3   0:01 top
 3469 root      17   0   196  196   168 S       0  2.0  0.0   0:04
lcd-swrite
 3188 root       2   0  1364 1356  1068 S       0  0.8  0.5   0:00 sshd
    1 root       0   0   476  476   404 S       0  0.0  0.1   0:06 init
    2 root       0   0     0    0     0 SW      0  0.0  0.0   0:00 kflushd
    3 root       0   0     0    0     0 SW      0  0.0  0.0   0:06 kupdate
    4 root       0   0     0    0     0 SW      0  0.0  0.0   0:00 kpiod
    5 root       0   0     0    0     0 SW      0  0.0  0.0   0:01 kswapd
    6 root     -20 -20     0    0     0 SW<     0  0.0  0.0   0:00
mdrecoveryd
 2838 root       0   0   476  472   376 S       0  0.0  0.1   3:41 syslogd
 2847 root       0   0   684  680   304 S       0  0.0  0.2   0:00 klogd
 2877 root       0   0   572  568   492 S       0  0.0  0.2   0:00 crond
 2906 root       0   0   848  836   496 S       0  0.0  0.3   0:00 snmpd
 2918 root       0   0   444  440   372 S       0  0.0  0.1   0:16 inetd
 2947 root       0   0  3944 3776   664 S       0  0.0  1.4   9:16 named
 2953 root       0   0   636  612   500 S       0  0.0  0.2   0:04 sshd
 2963 root       0   0  9304 9184  7060 S       0  0.0  3.5   0:25 httpd
 3058 postgres   5   5  2136 2136   952 S N     0  0.0  0.8   0:39
postmaster
 3182 root       0   0   996  896   816 S       0  0.0  0.3   0:00 admd
 3184 nobody     0   0   816  672   560 S       0  0.0  0.2   0:00 admd
 3223 root       0   0   816  816   600 S       0  0.0  0.3   0:00 admdog
 3224 root       0   0   816  816   600 S       0  0.0  0.3   0:00 admdog
 3225 root       0   0   816  816   600 S       0  0.0  0.3   0:00 admdog
 3227 root       0   0  5136 5136  2824 S       0  0.0  1.9   0:00 admeng
 3230 root       0   0  5136 5136  2824 S       0  0.0  1.9   0:00 admeng
 3232 root       0   0  5136 5136  2824 S       0  0.0  1.9   0:00 admeng
 3279 root       0   0   820  820   668 S       0  0.0  0.3   0:00
safe_mysqld
 3295 root       0   0  2340 1740   980 S       0  0.0  0.6   0:01 poprelayd
 3302 mysql      5   5  3024 3024  1324 S N     0  0.0  1.1   0:01 mysqld
 3305 mysql      7   5  3024 3024  1324 S N     0  0.0  1.1   0:02 mysqld
 3306 mysql      5   5  3024 3024  1324 S N     0  0.0  1.1   0:00 mysqld
 3323 root       0   0   128  128   108 S       0  0.0  0.0   0:01 lcdsleep
 3358 root       0   0   464  464   388 S       0  0.0  0.1   0:00 getty
30846 root       0   0   808  808   640 S       0  0.0  0.3   0:00
lcd-showip
30851 root       0   0   804  804   728 S       0  0.0  0.3   0:00 lcdstop
30852 root       0   0   448  388   312 S       0  0.0  0.1   0:00 lcdstop
30853 root       0   0   272  272   216 D       0  0.0  0.1   0:00 pidof
12790 root       0   0   528  520   444 S       0  0.0  0.2   0:00 crond
12791 root       0   0   772  772   632 S       0  0.0  0.2   0:00 run-parts
12792 root       0   0   772  772   640 S       0  0.0  0.2   0:00
makewhatis.cron
12794 root       0   0   852  852   640 S       0  0.0  0.3   0:00
makewhatis
13091 root       0   0   436  436   336 S       0  0.0  0.1   0:00 find
13092 root       0   0   904  904   532 S       0  0.0  0.3   0:01 gawk
13224 root       0   0   288  288   224 D       0  0.0  0.1   0:00 sh
32471 root       0   0  9968 9856  7448 S       0  0.0  3.8   0:03 httpd
 1229 root       0   0   760  760   604 S       0  0.0  0.2   0:00
in.telnetd
 1230 root       0   0  1064 1064   816 S       0  0.0  0.4   0:00 login
 1231 leann      0   0   936  936   740 S       0  0.0  0.3   0:00 bash
 1308 root       0   0  9972 9860  7468 S       0  0.0  3.8   0:08 httpd
 1533 leann      0   0  2120 2120  1688 S       0  0.0  0.8   0:00 pine
 1781 root       0   0  9984 9872  7456 S       0  0.0  3.8   0:11 httpd
 1784 root       0   0 10044 9940  7484 S       0  0.0  3.8   0:06 httpd
 1787 root       0   0 10008 9896  7476 S       0  0.0  3.8   0:07 httpd
 3063 root       0   0  1388 1388   960 S       0  0.0  0.5   0:00 sendmail
 3191 root       1   0   980  980   740 S       0  0.0  0.3   0:00 sh
 3368 rodney     0   0  1188 1188   908 S       0  0.0  0.4   0:01 imapd
 3409 root       0   0   828  828   600 S       0  0.0  0.3   0:00 caspd
 3410 root       0   0   828  828   600 S       0  0.0  0.3   0:00 caspd
 3411 root       0   0   828  828   600 S       0  0.0  0.3   0:00 caspd
 3413 root       0   0  5244 5244  2824 S       0  0.0  2.0   0:00 caspeng
 3414 root       0   0  5244 5244  2824 S       0  0.0  2.0   0:00 caspeng
 3415 root       0   0  5244 5244  2824 S       0  0.0  2.0   0:00 caspeng
 3416 root       0   0  5244 5244  2824 S       0  0.0  2.0   0:00 caspeng
 3417 root       0   0  5244 5244  2824 S       0  0.0  2.0   0:00 caspeng
 3418 root       0   0  5244 5244  2824 S       0  0.0  2.0   0:00 caspeng
 3419 root       0   0  5244 5244  2824 S       0  0.0  2.0   0:00 caspeng
 3473 root       0   0 10896  10M 10712 S       0  0.0  4.2   0:02 httpd
 3477 httpd      0   0 11132  10M 10760 S       0  0.0  4.3   0:00 httpd

RaQ4 results of PSTREE

# pstree
init-+-admd---admd
     |-admdog-+-admdog---admdog
     |        `-admeng---admeng---admeng
     |-caspd-+-caspd---caspd
     |       `-caspeng---caspeng---5*[caspeng]
     |-crond---crond---run-parts---makewhatis.cron---makewhatis-+-find
     |                                                          `-gawk---sh
     |-getty
     |-httpd---5*[httpd]
     |-httpd---13*[httpd]
     |-inetd-+-2*[imapd]
     |       `-in.telnetd---login---bash---pine
     |-kflushd
     |-klogd
     |-kpiod
     |-kswapd
     |-kupdate
     |-lcd-swrite
     |-lcdsleep---lcd-showip---lcdstop---lcdstop---pidof
     |-mdrecoveryd
     |-named
     |-poprelayd
     |-postmaster
     |-safe_mysqld---mysqld---mysqld---mysqld
     |-sendmail---sendmail---sendmail
     |-snmpd
     |-sshd---sshd---sh---pstree
     `-syslogd