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Full Discussion: Swap memory usage keeps increasing.
Operating Systems Linux Red Hat Swap memory usage keeps increasing. Post 302998018 by tom8254 on Wednesday 24th of May 2017 09:02:54 AM
Old 05-24-2017
Swap memory usage keeps increasing.
Hi

the version is RedHat 6.2 (Oracle DB server)

I don't know why swap memory usage keeps increasing...

I used to check swap memory usage Free -m and another way.

Code:
             total       used       free     shared    buffers     cached
Mem:         32183      31861        322          0        409      28413
-/+ buffers/cache:       3038      29145
Swap:        10236       5325       4911

and used below command to check each PID's swap memory usage
Code:
[root@ ~]# for proc in /proc/*; do cat $proc/smaps 2>/dev/null | awk '/Swap/{swap+=$2}END{print swap "\t'`readlink $proc/exe`'"}'; done | sort -n | awk '{total+=$1}/[0-9]/;END{print total "\tTotal"}'
0       /bin/bash
0       /bin/bash
0       /bin/bash
0       /bin/bash
0       /bin/bash
0       /bin/dbus-daemon
0       /bin/gawk
0       /bin/sort
0       /bin/su
0       /opt/hp/hp-health/bin/hpasmlited
0       /opt/hp/hp-health/bin/hp-asrd
0       /opt/hp/hp-snmp-agents/nic/bin/cmanicd
0       /opt/hp/hp-snmp-agents/server/bin/cmahealthd
0       /opt/hp/hp-snmp-agents/server/bin/cmahostd
0       /opt/hp/hp-snmp-agents/server/bin/cmapeerd
0       /opt/hp/hp-snmp-agents/server/bin/cmaperfd
0       /opt/hp/hp-snmp-agents/server/bin/cmasm2d
0       /opt/hp/hp-snmp-agents/server/bin/cmasm2d
0       /opt/hp/hp-snmp-agents/server/bin/cmastdeqd
0       /opt/hp/hp-snmp-agents/server/bin/cmathreshd
0       /opt/hp/hp-snmp-agents/storage/bin/cmaeventd
0       /opt/hp/hp-snmp-agents/storage/bin/cmafcad
0       /opt/hp/hp-snmp-agents/storage/bin/cmaidad
0       /opt/hp/hp-snmp-agents/storage/bin/cmaided
0       /opt/hp/hp-snmp-agents/storage/bin/cmasasd
0       /opt/hp/hp-snmp-agents/storage/bin/cmascsid
0       /opt/VRTSralus/bin/beremote
0       /oracle/app/11.2/grid/bin/crsd.bin
0       /oracle/app/11.2/grid/bin/cssdagent
0       /oracle/app/11.2/grid/bin/cssdmonitor
0       /oracle/app/11.2/grid/bin/evmd.bin
0       /oracle/app/11.2/grid/bin/evmlogger.bin
0       /oracle/app/11.2/grid/bin/gipcd.bin
0       /oracle/app/11.2/grid/bin/gpnpd.bin
0       /oracle/app/11.2/grid/bin/mdnsd.bin
0       /oracle/app/11.2/grid/bin/ocssd.bin
0       /oracle/app/11.2/grid/bin/octssd.bin
0       /oracle/app/11.2/grid/bin/ohasd.bin
0       /oracle/app/11.2/grid/bin/ologgerd
0       /oracle/app/11.2/grid/bin/oraagent.bin
0       /oracle/app/11.2/grid/bin/oraagent.bin
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/oracle
0       /oracle/app/11.2/grid/bin/orarootagent.bin
0       /oracle/app/11.2/grid/bin/orarootagent.bin
0       /oracle/app/11.2/grid/bin/osysmond.bin
0       /oracle/app/11.2/grid/bin/tnslsnr
0       /oracle/app/11.2/grid/opmn/bin/ons
0       /oracle/app/11.2/grid/opmn/bin/ons
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /oracle/app/oracle/product/11.2/bin/oracle
0       /root/nmon/bin/nmon_x86_64_rhel5
0       /sbin/audispd
0       /sbin/auditd
0       /sbin/init
0       /sbin/klogd
0       /sbin/mingetty
0       /sbin/mingetty
0       /sbin/mingetty
0       /sbin/mingetty
0       /sbin/mingetty
0       /sbin/mingetty
0       /sbin/multipathd
0       /sbin/portmap
0       /sbin/rpc.statd
0       /sbin/syslogd
0       /sbin/udevd
0       /skcc/ACEMAgent/3.0/bin/ACEMAgent.exe
0       /skcc/ACEMAgent/3.0/bin/INWatchDog.exe
0       /usr/bin/python
0       /usr/bin/readlink
0       /usr/bin/xfs
0       /usr/bin/Xorg
0       /usr/lib/Acronis/Agent/acronisagent
0       /usr/lib/Acronis/BackupAndRecovery/arsm
0       /usr/lib/Acronis/BackupAndRecovery/mms
0       /usr/libexec/gdmgreeter
0       /usr/libexec/gdm-rh-security-token-helper
0       /usr/libexec/hald-addon-acpi
0       /usr/libexec/hald-addon-keyboard
0       /usr/libexec/hald-addon-keyboard
0       /usr/libexec/hald-addon-keyboard
0       /usr/libexec/hald-addon-storage
0       /usr/libexec/hald-runner
0       /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/bin/java
0       /usr/sbin/atd
0       /usr/sbin/cimserver
0       /usr/sbin/crond
0       /usr/sbin/gdm-binary
0       /usr/sbin/gdm-binary
0       /usr/sbin/gpm
0       /usr/sbin/hald
0       /usr/sbin/hpiod
0       /usr/sbin/irqbalance
0       /usr/sbin/ntpd
0       /usr/sbin/pcscd
0       /usr/sbin/rpc.idmapd
0       /usr/sbin/sshd
0       /usr/sbin/sshd
0       /usr/sbin/sshd
0       /usr/sbin/sshd
0       /usr/sbin/sshd
0       /usr/sbin/uuidd
0       /usr/sbin/xinetd
0       Total

but....the result value is 0.....

I don't know why there is no swap memory usage but there is existing swap memory usage in free -m command's result.

Can you help me why the swap memory usage keeps increasing?

I attach another command result

Code:
[root@~]# vmstat 3 10
procs -----------memory---------- ---swap-- -----io---- --system-- -----cpu------
 r  b   swpd   free   buff  cache   si   so    bi    bo   in   cs us sy id wa st
 1  0 5453296 294920 419980 29099820    0    0   240    85    0    1  1  1 99  0  0
 0  0 5453296 294548 419992 29099828    0    0    32   171 1207 5943  0  0 99  0  0
 0  0 5453296 292984 420004 29099824    0    0    27   162 1200 5613  0  0 99  0  0
 0  0 5453296 293480 420016 29099828    0    0    48   554 1145 5199  0  0 99  0  0
 0  0 5453296 294224 420024 29099840    0    0    28    50 1129 6146  0  0 99  0  0
 1  0 5453296 295864 420040 29099840    0    0    33  1172 1154 5213  0  0 99  0  0
 0  0 5453296 295144 420068 29099832    0    0    53   107 1269 5804  0  0 99  0  0
 0  0 5453296 299752 420092 29099940    0    0   112   118 1137 5295  0  0 99  0  0
 0  0 5453296 299196 420092 29099944    0    0    53    74 1121 5331  1  0 99  0  0
 0  0 5453296 299988 420104 29099952    0    0    43   166 1111 5427  0  0 99  0  0

Code:
top - 21:02:39 up 71 days,  4:41,  2 users,  load average: 1.28, 1.19, 1.11
Tasks: 394 total,   1 running, 393 sleeping,   0 stopped,   0 zombie
Cpu(s):  0.8%us,  0.3%sy,  0.0%ni, 98.8%id,  0.1%wa,  0.0%hi,  0.0%si,  0.0%st

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  SWAP COMMAND
13547 acem      18   0  522m 112m 1684 S  2.0  0.3   1005:09 410m ACEMAgent.exe
11918 root      15   0  352m  35m  14m S  1.0  0.1 491:31.07 317m orarootagent.bi
11977 oracle    RT   0  382m 110m  53m S  1.0  0.3 540:01.24 271m ocssd.bin
17219 root      18   0 12216 1264  600 S  1.0  0.0   0:32.60  10m nmon_x86_64_rhe
13262 root      15   0 1707m  25m  13m S  0.7  0.1 472:50.90 1.6g orarootagent.bi
18120 oracle    15   0 12.2g  76m  50m S  0.7  0.2 406:27.19  12g oracle
 5861 root      RT   0  150m 4280 2816 S  0.3  0.0  85:00.28 145m multipathd
11394 root      15   0  381m  51m  21m S  0.3  0.2 110:03.00 329m ohasd.bin
11832 oracle    15   0  371m  36m  15m S  0.3  0.1 327:39.28 334m oraagent.bin
11934 root      RT   0  246m  87m  55m S  0.3  0.3 378:02.72 159m osysmond.bin
13597 oracle    15   0 12.2g  47m  42m S  0.3  0.1 163:53.72  12g oracle
18726 oracle    15   0 12.2g  47m  42m S  0.3  0.1 202:53.48  12g oracle
18728 oracle    15   0 12.2g  58m  53m S  0.3  0.2 187:58.09  12g oracle
25375 oracle    15   0 12.2g  46m  42m S  0.3  0.1 197:19.75  12g oracle
25377 oracle    15   0 12.2g  48m  43m S  0.3  0.2 197:12.23  12g oracle
27058 oracle    15   0 12.2g  72m  67m S  0.3  0.2 182:48.25  12g oracle
28400 root      15   0 13000 1376  848 R  0.3  0.0   0:00.04  11m top

Code:
[root@ ~]# sar -r | grep Average
Average:       299196  32657104     99.09    379724  29115012   5151813   5330559     50.85    219135

 

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