On 17 Aug 2001 13:39:07 +0200, jose carreiro wrote:
> Hi all,
>
> my server runs fine but i'm wondering if the memory usage is in a normal
> state.
>
> the server is a VAlinux 2200 series with dual PIII 800 Mhz and 512 MB RAM.
> software is linux debian 2.2r2 , qmail 1.03 , standard qmail-smtpd and
> qmail-pop3d server with vpopmail 4.8.9 and imp/webmail
>
> here is some screen dumps of TOP ** and PS -AUXW qmail processes:
>
> 258 processes: 256 sleeping, 2 running, 0 zombie, 0 stopped
> CPU states: 15.8% user, 10.0% system, 0.0% nice, 74.0% idle
> Mem: 523804K av, 521596K used, 2208K free, 0K shrd, 249844K buff
> Swap: 248968K av, 0K used, 248968K free 42580K cached
>
> PID USER PRI NI SIZE RSS SHARE STAT LIB %CPU %MEM TIME COMMAND
> 23038 root 0 0 63864 62M 960 S 0 0.0 1 0:19
> snmpd
> 197 root 0 0 55324 54M 592 S 0 0.0 10.5 14:53
> ospfd
> 18378 www-data 0 0 6100 6100 3396 S 0 0.0 1.1 0:03
> apache-ssl
> 25277 www-data 0 0 5976 5976 3388 S 0 0.0 1.1 0:02
> apache-ssl
> 25261 www-data 0 0 5956 5956 3376 S 0 0.0 1.1 0:01
> apache-ssl
> 32722 www-data 0 0 5892 5892 3332 S 0 0.0 1.1 0:00
> apache-ssl
> 12018 www-data 0 0 5888 5888 3384 S 0 0.0 1.1 0:00
> apache-ssl
> 6599 www-data 0 0 5856 5856 3340 S 0 0.0 1.1 0:02
> apache-ssl
> 5923 www-data 0 0 5796 5796 3376 S 0 0.0 1.1 0:04
> apache-ssl
> 32418 www-data 0 0 5760 5760 3376 S 0 0.0 1.0 0:01
> apache-ssl
> 27855 www-data 0 0 5728 5728 3356 S 0 0.0 1.0 0:03
> apache-ssl
> 18985 www-data 0 0 5716 5716 3380 S 0 0.0 1.0 0:03
> apache-ssl
> 29660 www-data 0 0 5688 5688 3376 S 0 0.0 1.0 0:00
> apache-ssl
> 28473 www-data 0 0 5596 5596 3380 S 0 0.0 1.0 0:04
> apache-ssl
> 18242 www-data 0 0 5544 5544 3216 S 0 0.0 1.0 0:00
> apache-ssl
> 32367 www-data 0 0 5504 5504 3384 S 0 0.0 1.0 0:01
> apache-ssl
> 31743 www-data 0 0 4956 4956 3176 S 0 0.0 0.9 0:00
> apache-ssl
> 5837 www-data 0 0 4920 4920 3184 S 0 0.0 0.9 0:00
> apache-ssl
>
> ** sorted by mem usage and showing main 3 processes using memory: OSPFD,
> SNMPD and apache-ssl ( for IMP/Webmail)
> as you can see near all physical memory is used and nothing from the swap
> part. the cpu seems very low loaded and a lots of sleeping procs !!!
>
> Qmail processes (ps -auxw) :
>
> qmaild 20078 0.0 0.1 1316 556 ? S Aug05 9:11
> /usr/local/bin/tcpserver -v -H -P -R -l 0 -x /etc/tcp.smtp.cdb -c 100 -u
> 1002 -g 2108 0 smtp /opt/qmail/bin/qmail-smtpd
>
> root 20067 0.1 0.1 1316 548 ? S Aug05 23:00
> tcpserver -H -v -R 0 pop3 /opt/qmail/bin/qmail-popup pop.domain.com
> /var/spool/popmail/bin/vchkpw /opt/qmail/bin/qmail-pop3d Maildir
>
> qmaild 31397 0.0 0.0 1008 336 ? S 15:29 0:00
> /opt/qmail/bin/qmail-smtpd (about 35 procs like this one > incomming smtp
> connects)
>
> qmails 20057 0.1 0.0 1120 468 ? S Aug05 27:35 qmail-send
>
> qmailr 31606 0.0 0.0 1072 436 ? S 15:02 0:00 qmail-remote
> domain.com mydomain.xx [EMAIL PROTECTED] ( about 70 procs like this one >
> remote smtp send)
>
> vpopmail 27480 0.0 0.0 1004 344 ? S 15:26 0:00
> /opt/qmail/bin/qmail-pop3d Maildir
>
> root 27487 0.0 0.0 992 296 ? S 15:26 0:00
> /opt/qmail/bin/qmail-popup pop.domain.com /var/spool/popmail/bin/vchkpw
> /opt/qmail/bin/qmail-pop3d Maildir (about 30 procs like this one > local
> pop3 sessions)
>
> root 20048 0.0 0.0 988 304 ? S Aug05 0:00 supervise
> qmail-send
> root 20049 0.0 0.0 988 304 ? S Aug05 0:00 supervise log
> root 20050 0.0 0.0 988 304 ? S Aug05 0:00 supervise
> qmail-smtpd
> root 20051 0.0 0.0 988 304 ? S Aug05 0:00 supervise log
> root 20052 0.0 0.0 988 304 ? S Aug05 0:00 supervise
> qmail-pop3d
> root 20053 0.0 0.0 988 304 ? S Aug05 0:00 supervise log
>
>
> thx for advise !!
>
> J.
>
In linux the kernel will take all of the RAM, so it will appear as if
its all being used. Over time, regardless of the running processes the
kernel will take up all of the available RAM and distribute it from
there. Runnning top and seeing that your machines RAM is all in use is
noraml.
--
Jake Roersma
Network Engineer
Triton Technologies Inc.
(800)-837-4253/364-8761
