Memory at 100% LRH Ent 4.0

Mario Henley Becerril Geldis mrn08335 at telefonicamoviles.com.mx
Thu Feb 21 00:35:08 UTC 2008 

Thank you,

The Oracle SGA have 8GB.  

$ more /proc/meminfo
MemTotal:     16409832 kB
MemFree:        224688 kB
Buffers:         17296 kB
Cached:         461900 kB
SwapCached:          0 kB
Active:        2144412 kB
Inactive:       346400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:     16409832 kB
LowFree:        224688 kB
SwapTotal:    33554424 kB
SwapFree:     33553604 kB
Dirty:            3992 kB
Writeback:           0 kB
Mapped:        2116692 kB
Slab:          2524412 kB
CommitLimit:  37040748 kB
Committed_AS: 14651952 kB
PageTables:      64536 kB
VmallocTotal: 536870911 kB
VmallocUsed:    281244 kB
VmallocChunk: 536589591 kB
HugePages_Total:  4608
HugePages_Free:    511
Hugepagesize:     2048 kB


$ top
top - 18:34:35 up 21 days, 15:59,  4 users,  load average: 7.08, 6.52, 5.45
Tasks: 963 total,   3 running, 960 sleeping,   0 stopped,   0 zombie
Cpu(s):  8.8% us, 15.4% sy,  0.0% ni, 62.3% id, 12.8% wa,  0.1% hi,  0.7% si
Mem:  16409832k total, 16187624k used,   222208k free,    17452k buffers
Swap: 33554424k total,      820k used, 33553604k free,   463444k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
20837 oracle    16   0 8631m 8.3g 8.0g S    0 53.1   3:22.17 oracle
20794 oracle    16   0 8519m 8.2g 8.0g S    0 52.4   8:19.70 oracle
20641 oracle    16   0 8487m 8.2g 8.0g S    0 52.2   9:43.38 oracle
20649 oracle    16   0 8455m 8.1g 8.0g S    0 52.0   4:25.92 oracle
20845 oracle    16   0 8439m 8.1g 8.0g S    0 51.9   3:58.00 oracle
21033 oracle    15   0 8342m 8.0g 8.0g S    8 51.3 137:16.89 oracle
 8676 oracle    16   0 8333m 8.0g 8.0g S    0 51.3   2:00.25 oracle
 8664 oracle    16   0 8339m 8.0g 8.0g S    0 51.3  10:23.07 oracle
21047 oracle    15   0 8341m 8.0g 8.0g S    0 51.3 139:15.43 oracle
21043 oracle    15   0 8342m 8.0g 8.0g S    0 51.3 134:08.43 oracle
20923 oracle    15   0 8341m 8.0g 8.0g S    0 51.3 139:50.04 oracle
21041 oracle    15   0 8341m 8.0g 8.0g S    0 51.3 132:04.04 oracle
19313 oracle    16   0 8341m 8.0g 8.0g S    0 51.3  74:14.41 oracle
21037 oracle    16   0 8341m 8.0g 8.0g S   10 51.3 138:08.85 oracle
 8804 oracle    15   0 8346m 8.0g 8.0g S    0 51.3   2:10.37 oracle
 8806 oracle    15   0 8346m 8.0g 8.0g S    0 51.3   2:04.98 oracle
 8808 oracle    16   0 8346m 8.0g 8.0g S    0 51.3   2:24.87 oracle
 8790 oracle    15   0 8346m 8.0g 8.0g S    0 51.3   2:05.57 oracle
 8792 oracle    15   0 8346m 8.0g 8.0g S    0 51.3   2:09.34 oracle
 8798 oracle    15   0 8346m 8.0g 8.0g S    0 51.3   2:11.54 oracle
 8800 oracle    15   0 8346m 8.0g 8.0g S    0 51.3   2:11.58 oracle
 8796 oracle    16   0 8346m 8.0g 8.0g S    0 51.3   2:10.83 oracle
 8794 oracle    16   0 8346m 8.0g 8.0g S    0 51.3   2:10.52 oracle
 8802 oracle    15   0 8346m 8.0g 8.0g S    0 51.3   2:11.71 oracle
 8666 oracle    16   0 8333m 8.0g 8.0g S    0 51.3   2:36.09 oracle
28027 oracle    15   0 8330m 8.0g 8.0g S    0 51.3   0:00.22 oracle
 8670 oracle    16   0 8331m 8.0g 8.0g S    0 51.3   0:20.51 oracle
 8636 oracle   -51   0 8343m 8.0g 8.0g S    0 51.3   0:15.56 oracle
 8640 oracle   -51   0 8343m 8.0g 8.0g S    0 51.3   0:15.23 oracle
 8634 oracle    15   0 8343m 8.0g 8.0g S    0 51.3   0:47.48 oracle
20948 oracle    15   0 8332m 8.0g 8.0g S    0 51.3   0:00.81 oracle
16966 oracle    15   0 8334m 8.0g 8.0g S    0 51.3   0:01.01 oracle
 8769 oracle    16   0 8330m 8.0g 8.0g S    0 51.3   0:05.17 oracle
20799 oracle    16   0 8330m 8.0g 8.0g S    0 51.3   0:05.75 oracle
10234 oracle    16   0 8330m 8.0g 8.0g S    0 51.3   0:00.54 oracle
21061 oracle    16   0 8333m 8.0g 8.0g S    5 51.3 131:13.11 oracle
 9775 oracle    15   0 8333m 8.0g 8.0g S    0 51.3  75:18.91 oracle


-----Mensaje original-----
De: redhat-sysadmin-list-bounces at redhat.com [mailto:redhat-sysadmin-list-bounces at redhat.com] En nombre de Sweat, Ryan
Enviado el: Miércoles, 20 de Febrero de 2008 06:30 p.m.
Para: redhat-sysadmin-list at redhat.com
Asunto: RE: Memory at 100% LRH Ent 4.0

It's probably not an oversized Oracle SGA if it still appears to use
100% when it's shut down.  Linux caches memory that isn't being used, so
it only looks like it's using 100%.  Cached memory can be reclaimed by
processes that need it.  Can you cat /proc/meminfo and paste its output
here?  Also run top, and sort by memory usage by pushing M, and see if
any of the top processes appear to be using an abnormal amount of
memory. 

> -----Original Message-----
> From: redhat-sysadmin-list-bounces at redhat.com 
> [mailto:redhat-sysadmin-list-bounces at redhat.com] On Behalf Of 
> Mario Henley Becerril Geldis
> Sent: Wednesday, February 20, 2008 6:05 PM
> To: redhat-sysadmin-list at redhat.com
> Subject: Memory at 100% LRH Ent 4.0
> 
> Hi Administrators,
> 
>  
> 
>  
> 
> I have a Linux Red Hat Enterprise 4.0 with Oracle 10g 
> Database on HP DL580 (16GB RAM and  8 CPU at 3.3GHz). All the 
> time the system appear with 100% Memory consumption.
> 
>  
> 
> When Oracle 10g database is down; the system have 100% Memory 
> consumption.
> 
>  
> 
> To solve this, the system must be reset.
> 
>  
> 
>  
> 
> Any ideas.
> 
> 

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