On 21 Nov, Alister Waller scribbled:
-> I have a customer who says that his systems seems to be very memory hungry.
-> Looking at the output below I can see that there is on 70MB of memory left
-> out of 517MB.
->
-> I was wondering if anyone could decipher the below output and suggest
-> reasons for what is going on or for more reports I can produce to pintpoint
-> whats eating memory.
->
-> regards
->
-> Alister
->
->
-> ************************************************
-> Hear is a dump of vmstat, with 35 users. It is a bit better today with 73
-> meg free, Yesterday it had 42 user with about 3meg free and it alway seems
-> to be using the swap file.
-> I have been monitoring this a even at night with only one or two users the
-> free memory is often only 10 to 20meg.
->
-> I also noticed that the cpu usage for user programs always seems to site
-> around 50% (the first day or two it never got above 10%) The only program I
-> can see using this is klogd as you can see from TOP.
->
->
->
-> Feel free to dialin and have look.
->
->
-> Steve
->
-> Last login: Tue Nov 21 15:36:56 2000 from
-> [root@booth3 /root]# vmstat 2 10
-> procs memory swap io system
-> cpu
-> r b w swpd free buff cache si so bi bo in cs us sy
-> id
-> 5 0 0 9972 73728 135660 219680 0 0 13 12 62 53 40 0
-> 60
-> 3 0 0 9972 73684 135664 219720 0 0 5 0 157 568 54 4
-> 43
-> 1 0 0 9972 73684 135664 219720 0 0 9 21 171 443 54 3
-> 43
-> 1 0 0 9972 73684 135664 219720 0 0 0 0 155 381 51 3
-> 46
-> 1 0 0 9972 73760 135664 219716 0 0 0 0 138 343 50 3
-> 47
-> 1 0 0 9972 73756 135664 219712 0 0 5 30 188 321 50 3
-> 46
-> 1 0 0 9972 75244 135664 219708 0 0 1 4 132 155 50 4
-> 46
-> 1 0 0 9972 75232 135668 219716 0 0 8 22 163 239 55 4
-> 40
-> 1 0 0 9972 75164 135676 219776 0 0 8 0 146 590 52 4
-> 44
-> 1 0 0 9972 75164 135676 219776 0 0 0 0 133 142 50 3
-> 47
-> [root@booth3 /root]# uptime
-> 3:37pm up 3 days, 18:49, 35 users, load average: 1.03, 1.06, 1.02
-> [root@booth3 /root]#
->
-> [root@booth3 /root]# free
-> total used free shared buffers cached
-> Mem: 517124 442692 74432 110428 135888 220292
-> -/+ buffers/cache: 86512 430612
-> Swap: 1999968 9972 1989996
hes' onyl really using 86MB of memory address space - the rest is memory
that sunused by processes and so the kernel sues it for buffers and
cache.
-> 3:41pm up 3 days, 18:53, 35 users, load average: 1.08, 1.06, 1.01
-> 219 processes: 217 sleeping, 2 running, 0 zombie, 0 stopped
-> CPU states: 50.8% user, 2.7% system, 0.0% nice, 46.3% idle
-> Mem: 517124K av, 443376K used, 73748K free, 110740K shrd, 136056K
-> buff
-> Swap: 1999968K av, 9972K used, 1989996K free 220584K
-> cached
->
-> PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME COMMAND
-> 434 root 12 0 384 12 4 R 0 98.6 0.0 4295m klogd
-> 28886 root 7 0 968 968 668 R 0 3.6 0.1 0:01 top
-> 22589 rr 0 0 1224 1224 476 S 0 0.9 0.2 0:33 runcobol
-> 28855 root 0 0 1528 1484 1184 S 0 0.9 0.2 0:00 sshd
-> 20723 rr 0 0 1260 1260 476 S 0 0.7 0.2 1:41 runcobol
-> 20919 rr 0 0 1288 1288 476 S 0 0.7 0.2 0:11 runcobol
-> 10 root -20 -20 0 0 0 SW< 0 0.5 0.0 9:47 raid5d
-> 20678 root 0 0 760 760 604 S 0 0.3 0.1 0:08
-> in.telnetd
-> 22544 root 0 0 760 760 604 S 0 0.1 0.1 0:06
-> in.telnetd
-> 25918 root 0 0 760 760 604 S 0 0.1 0.1 0:02
-> in.telnetd
-> 28150 root 1 0 760 760 604 S 0 0.1 0.1 0:01
-> in.telnetd
-> 1 root 0 0 120 68 52 S 0 0.0 0.0 0:08 init
-> 2 root 0 0 0 0 0 SW 0 0.0 0.0 0:24 kflushd
-> 3 root 0 0 0 0 0 SW 0 0.0 0.0 0:49 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 0:28 kswapd
-> 6 root -20 -20 0 0 0 SW< 0 0.0 0.0 0:00
-> mdrecoveryd
-> 347 bin 0 0 372 352 304 S 0 0.0 0.0 0:00 portmap
you're definitely missing processes here (hit "shift-M" to display in
order of memory address space size)
--
--------------- Codito, ergo sum - "I code, therefore I am" --------------------
The Rasterman (Carsten Haitzler) [EMAIL PROTECTED] [EMAIL PROTECTED]
[EMAIL PROTECTED] [EMAIL PROTECTED]
[EMAIL PROTECTED]
--
SLUG - Sydney Linux User Group Mailing List - http://slug.org.au/
More Info: http://slug.org.au/lists/listinfo/slug
