Date: Wed, 9 Feb 2000 09:17:09 -1000 From: Systems Technician <systech@maui.net> To: questions@freebsd.org Subject: high load averages on mail server Message-ID: <20000209091709.A12776@work.maui.net>
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Aloha,
I'm stumped! Here's what I got FreeBSD 3.4 running Sendmail 8.9.3
and Cucipop for POP. (I've tried qpopper and no noticeable difference.)
Anyhow, my load averages just skyrocket from 8 - 5pm, especially in the morning
when people are checking their email at work or home. I attached a print out
of 'w', 'top', 'vmstat 1', and 'systat -vm 1'.
I have 384M of RAM, but it looks to me, using 'systat -vm 1' that the
box is only using a small portion of it. This doesn't look right to me and
I'm wondering if this is indicative of bad memory. Lastly, I only see this
happening when there are a large number of connections being made to this box.
Perhaps this is an i/o probably, but I too stupid to figure that out. Like
always any help will be appreciated and I'll mail a box of chocolate cover
Macadamia Nuts to the person that helps out the most...that should get you
going! ;)
------------------------------------------------------------------------
(mach)10:28am# w
10:28AM up 20:18, 5 users, load averages: 11.58, 10.81, 10.18
------------------------------------------------------------------------
(mach)10:28am# top
last pid: 53568; load averages: 5.27, 7.97, 9.10 up 0+20:21:24 10:31:39
74 processes: 5 running, 69 sleeping
CPU states: 70.5% user, 0.0% nice, 27.6% system, 1.9% interrupt, 0.0% idle
Mem: 52M Active, 283M Inact, 23M Wired, 10M Cache, 8348K Buf, 8588K Free
Swap: 513M Total, 513M Free
PID USERNAME PRI NICE SIZE RES STATE TIME WCPU CPU COMMAND
53298 xxxxxxx 91 0 1188K 852K RUN 0:22 29.02% 26.76% cucipop
53391 root 57 0 1860K 1016K RUN 0:03 9.46% 6.15% top
53508 xxxxxxx 92 0 1128K 792K RUN 0:01 17.88% 4.64% cucipop
107 root 2 0 6904K 6348K select 2:28 1.61% 1.61% named
(mach)10:44am# vmstat 1
procs memory page disks faults cpu
r b w avm fre flt re pi po fr sr da0 da1 da2 in sy cs us sy id
12 0 0 41880 19652 354 0 0 0 327 15 0 0 0 313 1162 128 49 17 34
8 0 0 38760 20584 258 0 0 0 471 0 17 0 3 329 851 204 88 12 0
2 0 0 35080 21352 306 0 0 0 509 0 6 0 5 333 961 209 87 13 0
------------------------------------------------------------------------
(mach)10:44am# systat -vm 1
5 users Load 15.70 8.52 7.58 Tue Feb 8 10:46
Mem:KB REAL VIRTUAL VN PAGER SWAP PAGER
Tot Share Tot Share Free in out in out
Act 26644 2056 41060 2632 26464 count
All 372872 5176 4060400 10736 pages
5 cow Interrupts
Proc:r p d s w Csw Trp Sys Int Sof Flt 22 zfod 291 total
6 33 92 35 312 290 49 39 23312 wire 100 clk0 irq0
54968 act 128 rtc0 irq8
6.1%Sys 1.5%Intr 92.4%User 0.0%Nice 0.0%Idl 279888 inact 58 pci irq11
| | | | | | | | | | 14564 cache 5 pci irq10
===+>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> 11900 free pci irq9
daefr fdc0 irq6
Namei Name-cache Dir-cache 88 prcfr atkbd0 irq
Calls hits % hits % react sio0 irq4
16 16 100 pdwak sio1 irq3
pdpgs
Discs da0 da1 da2 sa0 fd0 ch0 intrn
KB/t 0.00 0.00 64.00 0.00 0.00 0.00 8344 buf
tps 0 0 3 0 0 0 100 dirtybuf
MB/s 0.00 0.00 0.18 0.00 0.00 0.00 32260 desiredvnodes
% busy 0 0 3 0 0 0 5343 numvnodes
2882 freevnodes
--
J o n B a d u a S y s t e m s T e c h n i c i a n
systech@maui.net voice: 875-2535 fax: 875-2539
590 Lipoa Parkway, Ste.266 Kihei, Maui, Hawaii 96753
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