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Home -> Community -> Usenet -> c.d.o.server -> 8.1.7 on redhat 7.3 - not freeing memory
we recently installed 8.1.7 on a dual processor, compaq proliant running redhat 7.3 with 4gb ram. one of our support staff asked me this morning why when oracle starts, does it quickly consume all available memory and then when shut down, does not free it. i've never observed this and suspect it has something to do with shared memory. can someone help me to address his question/concern?
thanks.
sample output from top:
8:53am up 16:40, 2 users, load average: 0.08, 0.07, 0.02 111 processes: 110 sleeping, 1 running, 0 zombie, 0 stopped
CPU0 states: 0.0% user, 1.0% system, 0.0% nice, 98.0% idle CPU1 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle CPU2 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle CPU3 states: 0.0% user, 0.0% system, 0.0% nice, 100.0% idle Mem: 4387980K av, 4367712K used, 20268K free, 0K shrd, 197416K buff Swap: 2097096K av, 0K used, 2097096K free 3971020Kcached
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM TIME COMMAND
15201 root 15 0 1072 1072 840 R 1.9 0.0 0:00 top
1 root 15 0 484 484 420 S 0.0 0.0 0:04 init
2 root 0K 0 0 0 0 SW 0.0 0.0 0:00
migration_CPU0
3 root 0K 0 0 0 0 SW 0.0 0.0 0:00
migration_CPU1
4 root 0K 0 0 0 0 SW 0.0 0.0 0:00
migration_CPU2
5 root 0K 0 0 0 0 SW 0.0 0.0 0:00
migration_CPU3
6 root 15 0 0 0 0 SW 0.0 0.0 0:00 keventd
7 root 34 19 0 0 0 SWN 0.0 0.0 0:00
ksoftirqd_CPU0
8 root 34 19 0 0 0 SWN 0.0 0.0 0:00
ksoftirqd_CPU1
9 root 34 19 0 0 0 SWN 0.0 0.0 0:00
ksoftirqd_CPU2
10 root 34 19 0 0 0 SWN 0.0 0.0 0:00
ksoftirqd_CPU3
11 root 15 0 0 0 0 SW 0.0 0.0 0:02 kswapd
12 root 25 0 0 0 0 SW 0.0 0.0 0:00 bdflush
13 root 15 0 0 0 0 SW 0.0 0.0 0:00 kupdated
14 root 25 0 0 0 0 SW 0.0 0.0 0:00 mdrecoveryd
22 root 15 0 0 0 0 SW 0.0 0.0 0:00 kjournald
101 root 18 0 0 0 0 SW 0.0 0.0 0:00 khubd
199 root 15 0 0 0 0 SW 0.0 0.0 0:00 kjournald
200 root 15 0 0 0 0 SW 0.0 0.0 0:00 kjournald
201 root 15 0 0 0 0 SW 0.0 0.0 0:01 kjournald
202 root 15 0 0 0 0 SW 0.0 0.0 0:00 kjournald
203 root 15 0 0 0 0 SW 0.0 0.0 0:00 kjournald
204 root 15 0 0 0 0 SW 0.0 0.0 0:00 kjournald
205 root 15 0 0 0 0 SW 0.0 0.0 0:01 kjournald
206 root 15 0 0 0 0 SW 0.0 0.0 0:03 kjournald
550 root 15 0 568 568 480 S 0.0 0.0 0:02 syslogd
555 root 15 0 440 440 380 S 0.0 0.0 0:00 klogd
599 root 17 0 0 0 0 SW 0.0 0.0 0:00 scsi_eh_0
616 ntp 15 0 1880 1880 1680 S 0.0 0.0 0:01 ntpd
634 root 15 0 4016 4016 2244 S 0.0 0.0 1:16 snmpd
650 root 15 0 4016 4016 2244 S 0.0 0.0 0:00 snmpd
651 root 15 0 4016 4016 2244 S 0.0 0.0 0:01 snmpd
654 root 16 0 1256 1256 1132 S 0.0 0.0 0:00 sshd
675 root 15 0 896 896 732 S 0.0 0.0 0:00 xinetd
723 oracle 15 0 5984 5984 5424 S 0.0 0.1 0:01 oracle
725 oracle 15 0 26632 26M 25584 S 0.0 0.6 0:01 oracle
727 oracle 15 0 5512 5512 4892 S 0.0 0.1 0:01 oracle
729 oracle 15 0 5684 5684 5060 S 0.0 0.1 0:04 oracle
731 oracle 15 0 22456 21M 21980 S 0.0 0.5 0:00 oracle
733 oracle 15 0 8240 8240 7788 S 0.0 0.1 0:00 oracle
735 oracle 15 0 16224 15M 15684 S 0.0 0.3 0:01 oracle
737 oracle 15 0 16880 16M 16336 S 0.0 0.3 0:01 oracle
739 oracle 15 0 16016 15M 15484 S 0.0 0.3 0:01 oracle
741 oracle 15 0 16044 15M 15516 S 0.0 0.3 0:01 oracle
759 oracle 16 0 3088 3088 2232 S 0.0 0.0 0:00 tnslsnr
-- Note: Remove nospam. from email address to respond.Received on Tue May 20 2003 - 11:06:58 CDT
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