Performance issue system swap partition.
nilesh vaghela
nileshj.vaghela at gmail.com
Mon Sep 3 08:58:14 UTC 2007
The output is taken Load ave is @ 12
14:45:01 up 12 days, 17:17, 2 users, load average: 12.67, 7.47, 4.96
209 processes: 191 sleeping, 5 running, 13 zombie, 0 stopped
CPU states: cpu user nice system irq softirq iowait idle
total 167.2% 0.0% 25.8% 0.0% 4.8% 1.8% 0.0%
cpu00 87.5% 0.0% 11.5% 0.0% 0.0% 0.9% 0.0%
cpu01 79.8% 0.0% 14.4% 0.0% 4.8% 0.9% 0.0%
Mem: 1024780k av, 1009004k used, 15776k free, 0k shrd, 44236k
buff
753664k actv, 141752k in_d, 15680k in_c
Swap: 1999992k av, 259808k used, 1740184k free 552548k
cached
PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM CTIME CPU COMMAND
25064 apache 16 0 14360 12M 3928 S 39.6 1.2 0:04 1 httpd
25034 apache 23 0 61008 41M 4020 R 38.6 4.1 1:41 1 httpd
14118 apache 21 0 15680 13M 3980 R 25.1 1.3 0:32 0 httpd
23292 apache 16 0 15364 14M 3964 S 24.1 1.4 0:08 1 httpd
28441 apache 16 0 13988 12M 3916 S 16.4 1.2 0:01 0 httpd
7446 apache 16 0 15008 13M 3988 S 6.7 1.3 0:51 0 httpd
]# cat /proc/meminfo
total: used: free: shared: buffers: cached:
Mem: 1049374720 1033097216 16277504 0 49688576 682455040
Swap: 2047991808 258445312 1789546496
MemTotal: 1024780 kB
MemFree: 15896 kB
MemShared: 0 kB
Buffers: 48524 kB
Cached: 557884 kB
SwapCached: 108576 kB
Active: 752936 kB
ActiveAnon: 422212 kB
ActiveCache: 330724 kB
Inact_dirty: 142708 kB
Inact_laundry: 28612 kB
Inact_clean: 13916 kB
Inact_target: 187632 kB
HighTotal: 130432 kB
HighFree: 1192 kB
LowTotal: 894348 kB
LowFree: 14704 kB
SwapTotal: 1999992 kB
SwapFree: 1747604 kB
CommitLimit: 2512380 kB
Committed_AS: 799608 kB
HugePages_Total: 0
HugePages_Free: 0
Hugepagesize: 2048 kB
On 9/3/07, Herta Van den Eynde <herta.vandeneynde at gmail.com> wrote:
>
> On 03/09/07, nilesh vaghela <nileshj.vaghela at gmail.com> wrote:
> > We have RHEL 3 running groupware horde with around 400 users.
> >
> > output of the top is like
> >
> > 11:56:24 up 12 days, 14:29, 3 users, load average: 17.56, 13.86,
> 17.18
> > 215 processes: 211 sleeping, 1 running, 3 zombie, 0 stopped
> > CPU states: cpu user nice system irq softirq iowait idle
> > total 133.8% 0.0% 15.6% 0.0% 0.0% 50.0% 0.0%
> > cpu00 66.7% 0.0% 8.1% 0.0% 0.0% 25.0% 0.0%
> > cpu01 67.1% 0.0% 7.5% 0.0% 0.1% 25.0% 0.0%
> > Mem: 1024780k av, 1007952k used, 16828k free, 0k shrd, 16804k
> > buff
> > 752416k actv, 142348k in_d, 17892k in_c
> > Swap: 1999992k av, 286856k used, 1713136k free 548700k
> > cached
> >
> > PID USER PRI NI SIZE RSS SHARE STAT %CPU %MEM CTIME CPU
> COMMAND
> > 27403 postgres 17 0 18932 18M 17512 S 36.8 1.8 0:01 0
> postmaster
> > 22027 apache 20 0 14064 13M 3948 S 9.9 1.3 0:06 1 httpd
> > 9730 apache 16 0 15556 14M 4032 S 9.7 1.4 0:23 0 httpd
> > 15890 apache 19 0 15504 14M 4016 S 6.3 1.4 0:18 1 httpd
> > 7907 apache 18 0 15128 14M 4024 S 5.3 1.4 0:14 1 httpd
> > 19281 apache 15 0 15324 14M 3984 S 2.9 1.4 0:12 1 httpd
> > 8 root 15 0 0 0 0 SW 1.7 0.0 43:14 0 kscand
> > 26073 apache 16 0 13784 12M 3912 S 1.7 1.2 0:01 1 httpd
> > 26056 apache 16 0 14588 13M 3928 S 1.5 1.3 0:01 0 httpd
> > 26152 amish.sh 15 0 1152 1112 1020 D 1.5 0.1 0:05 0 imap
> > 19330 apache 15 0 15120 13M 3968 S 1.3 1.3 0:12 1 httpd
> > 21861 apache 16 0 14568 13M 3952 S 1.3 1.3 0:05 1 httpd
> > 22028 apache 15 0 14228 12M 3964 S 1.1 1.2 0:08 1 httpd
> > 21860 apache 15 0 14436 13M 3964 S 0.9 1.3 0:06 0 httpd
> >
> > --------
> >
> > #free -m
> > total used free shared buffers
> cached
> > Mem: 1000 985 15 0
> 16 584
> > -/+ buffers/cache: 384 616
> > Swap: 1953 262 1691
> > # iostat
> > Linux 2.4.21-47.0.1.ELsmp (mailserver) 09/03/2007
> >
> > avg-cpu: %user %nice %sys %idle
> > 8.62 0.00 1.67 89.72
> >
> > Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
> > dev8-0 51.10 2174.61 528.74 2031403260 493924264
> > dev8-1 20.50 1051.40 1106.51 982162050 1033642680
> >
> >
> > Why it is consuming so high swap even the free memory is there ???
> >
> > The io wait consume almost all the cpu power. ??
> >
> >
> > --
> > Nilesh Vaghela
> > ElectroMech
> > Redhat Channel Partner and Training Partner
> > 74, Nalanda Complex, Satellite Rd, Ahmedabad
> > 25, The Emperor, Fatehgunj, Baroda.
> > www.electromech.info
>
> Could you post the output of 'cat /proc/meminfo', please?
>
> Kind regards,
>
> Herta
>
> --
> redhat-list mailing list
> unsubscribe mailto:redhat-list-request at redhat.com?subject=unsubscribe
> https://www.redhat.com/mailman/listinfo/redhat-list
>
--
Nilesh Vaghela
ElectroMech
Redhat Channel Partner and Training Partner
74, Nalanda Complex, Satellite Rd, Ahmedabad
25, The Emperor, Fatehgunj, Baroda.
www.electromech.info
More information about the redhat-list
mailing list