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Re: Significant virtual memory paging was detected on the host operating system

From: <sybrandb_at_hccnet.nl>
Date: Tue, 06 Nov 2007 07:38:13 +0100
Message-ID: <km20j310hrb27hjcvtkvmqkvgj18m6fe33@4ax.com>


On Mon, 05 Nov 2007 13:40:09 -0800, chris <cboivin_at_jlr.ca> wrote:

>On Nov 5, 4:37 pm, "fitzjarr..._at_cox.net" <fitzjarr..._at_cox.net> wrote:
>> On Nov 5, 3:10 pm, chris <cboi..._at_jlr.ca> wrote:
>>
>>
>>
>>
>>
>> > Hi everyone,
>>
>> > Id' just setup a new server for our Database, here's the Spec :
>>
>> > Win Server 2003 Ent. Edition (64 bit)
>> > 2 CPUs
>> > 24 Gb of RAM
>> > Oracle 10.0.2.3 (64 bit)
>>
>> > My SGA is 11040 MB and the PGA 4095 MB
>> > so, around 17GB for the instance, and it left 7GB of RAM for the OS
>> > suppose to be Ok, but i have the message : Significant virtual memory
>> > paging was detected on the host operating system in the EM ...
>>
>> > Do i do something wrong ?
>>
>> > Thanks
>> > Chris
>>
>> I have trouble understanding why you need an 11 gig SGA.
>>
>> David Fitzjarrell- Hide quoted text -
>>
>> - Show quoted text -
>
>I'm not an expert DBA, so i think if the memory is available, i can
>give it to the database
>is it better to reduce it ? , i'd change my server bcause the old one
>crash many time because of a lack of memory
>
>Thanks

  1. The memory is not available.
  2. Your calculation is wrong, as you forget to include the memory client processes will be using on the database server. So : you are not using 17Gb, you are using more. Please consult the task manager to verify memory used by Oracle.exe
  3. Is there any advisor in Oracle which told you to configure such outrageous amounts of memoryl, or do you belong to the 'More is better school of tuning'
  4. Likely you have an untuned application. Fix it. Stop symptom fighting. Contrary to what some 'gurus' state, it won't work, ever.
--


Sybrand Bakker
Senior Oracle DBA
Received on Tue Nov 06 2007 - 00:38:13 CST

Original text of this message

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