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	<title>Comments on: AWE -What is It and How to use it?</title>
	<atom:link href="http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/feed/" rel="self" type="application/rss+xml" />
	<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/</link>
	<description>Writing About Our Experiences With Oracle Databases</description>
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	<item>
		<title>By: Amit</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-8562</link>
		<dc:creator>Amit</dc:creator>
		<pubDate>Wed, 10 Aug 2011 05:27:13 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-8562</guid>
		<description>As mentioned in article , you can&#039;t use SGA_TARGET

**Please Note that you can not use ASMM i.e SGA_TARGET when using AWE.**

-Amit</description>
		<content:encoded><![CDATA[<p>As mentioned in article , you can&#8217;t use SGA_TARGET</p>
<p>**Please Note that you can not use ASMM i.e SGA_TARGET when using AWE.**</p>
<p>-Amit</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Bhupendra</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-8559</link>
		<dc:creator>Bhupendra</dc:creator>
		<pubDate>Tue, 09 Aug 2011 09:21:52 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-8559</guid>
		<description>Hi,
I am using Oracle Database 10g Enterprise Edition Release 10.2.0.1.0(32 bit)with windows server 2003 Enterprise Edition(64 bit) with 8GB physical memory. Below are the initialization parameter in spfile for memory:-
sga_max_size - 3GB
sga_target   -2704MB
pga_aggregate_target -1572MB

Still i am facing ORA-04030- out of process memory error during daily opeations.
Please help me or suggest me how to resolve this issue.

Regards
Bhupendra</description>
		<content:encoded><![CDATA[<p>Hi,<br />
I am using Oracle Database 10g Enterprise Edition Release 10.2.0.1.0(32 bit)with windows server 2003 Enterprise Edition(64 bit) with 8GB physical memory. Below are the initialization parameter in spfile for memory:-<br />
sga_max_size &#8211; 3GB<br />
sga_target   -2704MB<br />
pga_aggregate_target -1572MB</p>
<p>Still i am facing ORA-04030- out of process memory error during daily opeations.<br />
Please help me or suggest me how to resolve this issue.</p>
<p>Regards<br />
Bhupendra</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: tongkimongki</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7994</link>
		<dc:creator>tongkimongki</dc:creator>
		<pubDate>Tue, 26 Oct 2010 08:57:05 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7994</guid>
		<description>Hi...
iam having difficulties in tuning memory for oracle.
Right now, i have the following setting :

sga_max_size = sga_target = 584M
pga_aggregat_target = 300M
shared_pool_size = 0
db_cached_size = 0

I am using Oracle 10.2.0.1.0 with Win Server 2003 Enterprise x32 with 10Gb RAM. ASMM is enabled. I use /3GB and /PAE in boot.ini.

I want to increase the memory more than 2GB but it seems limited. In &quot;Database Configuration Assistant: Step 10&quot; (when you create new database using wizards) , oracle can read only 2GB of RAM. 
I can&#039;t set &quot;use_indirect_data_buffers&quot; to TRUE as it will stop oracle instance (it will throw error ora-12514) and therefore i cant use AWE_WINDOW_SIZE.
If i get my AWE working, is it better using ASMM ?

Can you please give me suggestion. I want to enable AWE... Thanks. 

-tongkimongki @ yahoo . com-</description>
		<content:encoded><![CDATA[<p>Hi&#8230;<br />
iam having difficulties in tuning memory for oracle.<br />
Right now, i have the following setting :</p>
<p>sga_max_size = sga_target = 584M<br />
pga_aggregat_target = 300M<br />
shared_pool_size = 0<br />
db_cached_size = 0</p>
<p>I am using Oracle 10.2.0.1.0 with Win Server 2003 Enterprise x32 with 10Gb RAM. ASMM is enabled. I use /3GB and /PAE in boot.ini.</p>
<p>I want to increase the memory more than 2GB but it seems limited. In &#8220;Database Configuration Assistant: Step 10&#8243; (when you create new database using wizards) , oracle can read only 2GB of RAM.<br />
I can&#8217;t set &#8220;use_indirect_data_buffers&#8221; to TRUE as it will stop oracle instance (it will throw error ora-12514) and therefore i cant use AWE_WINDOW_SIZE.<br />
If i get my AWE working, is it better using ASMM ?</p>
<p>Can you please give me suggestion. I want to enable AWE&#8230; Thanks. </p>
<p>-tongkimongki @ yahoo . com-</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Hank</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7959</link>
		<dc:creator>Hank</dc:creator>
		<pubDate>Thu, 23 Sep 2010 15:12:00 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7959</guid>
		<description>PAE allows the system to expand the number of bits that can be used to address physical memory from 32 bits to 36 bits. Out of 1.7GB allocated to Oracle, 1 GB is allocated to a “WINDOW” which is used to map the buffer cache and allows for bigger SGA. This acts like a “Swap Area” where all the blocks are mapped into this window and then provided to the application.It is advisable to use /3GB switch along with /PAE switch so that addressable space is around 2.7GB.</description>
		<content:encoded><![CDATA[<p>PAE allows the system to expand the number of bits that can be used to address physical memory from 32 bits to 36 bits. Out of 1.7GB allocated to Oracle, 1 GB is allocated to a “WINDOW” which is used to map the buffer cache and allows for bigger SGA. This acts like a “Swap Area” where all the blocks are mapped into this window and then provided to the application.It is advisable to use /3GB switch along with /PAE switch so that addressable space is around 2.7GB.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Hank</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7958</link>
		<dc:creator>Hank</dc:creator>
		<pubDate>Thu, 23 Sep 2010 15:03:25 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7958</guid>
		<description>&quot;&lt; 2,7 GB&quot; seems from Oracle Notes. for Linux, this value can go up a little bit.</description>
		<content:encoded><![CDATA[<p>&#8220;&lt; 2,7 GB&quot; seems from Oracle Notes. for Linux, this value can go up a little bit.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Amit</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7957</link>
		<dc:creator>Amit</dc:creator>
		<pubDate>Wed, 22 Sep 2010 11:42:43 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7957</guid>
		<description>Mathias,

What was initial setting for large_pool. RMAN and parallel query slaves use large pool. So would recommend increasing large_pool to 200 or more (depending on your earlier setting). 

Cheers
Amit</description>
		<content:encoded><![CDATA[<p>Mathias,</p>
<p>What was initial setting for large_pool. RMAN and parallel query slaves use large pool. So would recommend increasing large_pool to 200 or more (depending on your earlier setting). </p>
<p>Cheers<br />
Amit</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Mathias</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7956</link>
		<dc:creator>Mathias</dc:creator>
		<pubDate>Tue, 21 Sep 2010 15:20:52 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7956</guid>
		<description>Hi Amit! This article is very usefull. We are using oracle 10.2.0.1 on win 2003 ent, with 6gb. We already tried to use awe with 1 Gb in the registry, and     shared_pool_size=1024M
db_block_buffers=368640
db_block_size=8
java_pool=200M
large_pool=120M.
pga_aggregate_target=300G


The instance started up without error , but after a few hours of using it, with 30 users, it started to give errors like:
ora-4031 unable to allocate shared.....(&#039;large pool&#039;), and RMAN was reporting trouble also.

No sga_ parameters are used, Thank you in advance.</description>
		<content:encoded><![CDATA[<p>Hi Amit! This article is very usefull. We are using oracle 10.2.0.1 on win 2003 ent, with 6gb. We already tried to use awe with 1 Gb in the registry, and     shared_pool_size=1024M<br />
db_block_buffers=368640<br />
db_block_size=8<br />
java_pool=200M<br />
large_pool=120M.<br />
pga_aggregate_target=300G</p>
<p>The instance started up without error , but after a few hours of using it, with 30 users, it started to give errors like:<br />
ora-4031 unable to allocate shared&#8230;..(&#8216;large pool&#8217;), and RMAN was reporting trouble also.</p>
<p>No sga_ parameters are used, Thank you in advance.</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Amit</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7868</link>
		<dc:creator>Amit</dc:creator>
		<pubDate>Fri, 25 Jun 2010 03:57:36 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7868</guid>
		<description>Jargo,

Can you please unset SGA_MAX_SIZE parameter and try again.

Regards
Amit</description>
		<content:encoded><![CDATA[<p>Jargo,</p>
<p>Can you please unset SGA_MAX_SIZE parameter and try again.</p>
<p>Regards<br />
Amit</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Jargo</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7866</link>
		<dc:creator>Jargo</dc:creator>
		<pubDate>Thu, 24 Jun 2010 15:50:04 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7866</guid>
		<description>Hi Amit, your article was really a great help!! Though we are still trying to get some good working settings.
Our RMAN backup still fails whatever we try..
Maybe you have got some ideas:

Oracle 9.2i
CPU&#039;s = 8
Total ram = 16GB

AWE is set at 536 870 192

DB_BLOCK_BUFFERS   = 384216
sga_max_size   = 1500M  
shared_pool_size  = 500M
PGA_AGGREGATE_TARGET = 700M                                         

/3GB and /PAE are set in boot.ini. 

We have tried several configs with all different sizes for SGA, PGA, block_buffers etc. but still we get:

MAN-03002: failure of backup command at 06/24/2010 14:26:10

ORA-04030: out of process memory when trying to allocate 1049100 bytes (pga heap,KSFQ Buffers)

with our RMAN..
Do you have any suggestions to get RMAN working again? Must be something with PGA i would suspect!

Thanks!!! 
regards,
Jargo</description>
		<content:encoded><![CDATA[<p>Hi Amit, your article was really a great help!! Though we are still trying to get some good working settings.<br />
Our RMAN backup still fails whatever we try..<br />
Maybe you have got some ideas:</p>
<p>Oracle 9.2i<br />
CPU&#8217;s = 8<br />
Total ram = 16GB</p>
<p>AWE is set at 536 870 192</p>
<p>DB_BLOCK_BUFFERS   = 384216<br />
sga_max_size   = 1500M<br />
shared_pool_size  = 500M<br />
PGA_AGGREGATE_TARGET = 700M                                         </p>
<p>/3GB and /PAE are set in boot.ini. </p>
<p>We have tried several configs with all different sizes for SGA, PGA, block_buffers etc. but still we get:</p>
<p>MAN-03002: failure of backup command at 06/24/2010 14:26:10</p>
<p>ORA-04030: out of process memory when trying to allocate 1049100 bytes (pga heap,KSFQ Buffers)</p>
<p>with our RMAN..<br />
Do you have any suggestions to get RMAN working again? Must be something with PGA i would suspect!</p>
<p>Thanks!!!<br />
regards,<br />
Jargo</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Amit</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7777</link>
		<dc:creator>Amit</dc:creator>
		<pubDate>Sun, 28 Mar 2010 09:13:47 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7777</guid>
		<description>MOS means My Oracle Support or metalink :)

Cheers
Amit</description>
		<content:encoded><![CDATA[<p>MOS means My Oracle Support or metalink <img src='http://askdba.org/weblog/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
<p>Cheers<br />
Amit</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Saleem</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7776</link>
		<dc:creator>Saleem</dc:creator>
		<pubDate>Sun, 28 Mar 2010 08:19:20 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7776</guid>
		<description>What MOS mean ?</description>
		<content:encoded><![CDATA[<p>What MOS mean ?</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Amit</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7763</link>
		<dc:creator>Amit</dc:creator>
		<pubDate>Tue, 23 Mar 2010 14:51:57 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7763</guid>
		<description>Hi Saleem,

 In your case you are getting ora-4030 error i.e process memory (PGA) +SGA has gone beyond 2.7 gb . I think you will have to look at two  options

a) Try looking at why the pga requirement is high. May be you can tune the sql and try for optimal plan

b) Reduce sga size and see if you are still getting errors.

You can try using /PAE switch but i think you will have to change AWE_WINDOW_SIZE too. Refer to MOS note on finding appropriate size. 

Regards
Amir</description>
		<content:encoded><![CDATA[<p>Hi Saleem,</p>
<p> In your case you are getting ora-4030 error i.e process memory (PGA) +SGA has gone beyond 2.7 gb . I think you will have to look at two  options</p>
<p>a) Try looking at why the pga requirement is high. May be you can tune the sql and try for optimal plan</p>
<p>b) Reduce sga size and see if you are still getting errors.</p>
<p>You can try using /PAE switch but i think you will have to change AWE_WINDOW_SIZE too. Refer to MOS note on finding appropriate size. </p>
<p>Regards<br />
Amir</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Saleem</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7759</link>
		<dc:creator>Saleem</dc:creator>
		<pubDate>Sat, 20 Mar 2010 06:46:35 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7759</guid>
		<description>Hi Amit,

I found you post realy helpful.

I need your advise to set these parameters for my database also: Below is the details:

Database version = 10.2.0.2
Oracle Applications Version= 12.0.6

OS= Windows Server 2003 Enterprise Edition Service Pack 2

Boot.ini
-----------
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(2)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS=&quot;Windows Server 2003, Enterprise&quot; /noexecute=optout /fastdetect /pae /3gb /userva=3030
-------------------------------------------------
Total Physical Memory = 16 GB
-------------------------------------------------
Total System Global Area 2147483648 bytes
Fixed Size                  1293536 bytes
Variable Size             872416032 bytes
Database Buffers         1258291200 bytes
Redo Buffers               15482880 bytes
---------------------------------------------------------------------------
db_block_buffers                     integer     0
db_block_size                        integer     8192
db_cache_size                        big integer 0
java_pool_size                       big integer 0
large_pool_size                      big integer 0
log_buffer                           integer     15244288
sga_max_size                         big integer 2G
sga_target                           big integer 2G
shared_pool_size                     big integer 800M
streams_pool_size                    big integer 0
---------------------------------------------------------------------------
use_indirect_data_buffers            boolean     FALSE
---------------------------------------------------------------------------
sessions                             integer     1600
processes                            integer     800
---------------------------------------------------------------------------


Please advise what step should  I follow to utilize memory more than 4 GB?

As we are facing the following issue:
An internal error has occurred in the program XLA_AE_LINES_PKG.SetNullLine.  ORA-06500: PL/SQL: storage error
ORA-04030: out of process memory when trying to allocate 16396 bytes (koh-kghu sessi,pmucalm coll).
An internal error occurred.  Please inform your system administrator or support representative that:

Waiting for your reply

Thanks 
Saleem</description>
		<content:encoded><![CDATA[<p>Hi Amit,</p>
<p>I found you post realy helpful.</p>
<p>I need your advise to set these parameters for my database also: Below is the details:</p>
<p>Database version = 10.2.0.2<br />
Oracle Applications Version= 12.0.6</p>
<p>OS= Windows Server 2003 Enterprise Edition Service Pack 2</p>
<p>Boot.ini<br />
&#8212;&#8212;&#8212;&#8211;<br />
[boot loader]<br />
timeout=30<br />
default=multi(0)disk(0)rdisk(0)partition(2)\WINDOWS<br />
[operating systems]<br />
multi(0)disk(0)rdisk(0)partition(2)\WINDOWS=&#8221;Windows Server 2003, Enterprise&#8221; /noexecute=optout /fastdetect /pae /3gb /userva=3030<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
Total Physical Memory = 16 GB<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;-<br />
Total System Global Area 2147483648 bytes<br />
Fixed Size                  1293536 bytes<br />
Variable Size             872416032 bytes<br />
Database Buffers         1258291200 bytes<br />
Redo Buffers               15482880 bytes<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br />
db_block_buffers                     integer     0<br />
db_block_size                        integer     8192<br />
db_cache_size                        big integer 0<br />
java_pool_size                       big integer 0<br />
large_pool_size                      big integer 0<br />
log_buffer                           integer     15244288<br />
sga_max_size                         big integer 2G<br />
sga_target                           big integer 2G<br />
shared_pool_size                     big integer 800M<br />
streams_pool_size                    big integer 0<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br />
use_indirect_data_buffers            boolean     FALSE<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;<br />
sessions                             integer     1600<br />
processes                            integer     800<br />
&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;</p>
<p>Please advise what step should  I follow to utilize memory more than 4 GB?</p>
<p>As we are facing the following issue:<br />
An internal error has occurred in the program XLA_AE_LINES_PKG.SetNullLine.  ORA-06500: PL/SQL: storage error<br />
ORA-04030: out of process memory when trying to allocate 16396 bytes (koh-kghu sessi,pmucalm coll).<br />
An internal error occurred.  Please inform your system administrator or support representative that:</p>
<p>Waiting for your reply</p>
<p>Thanks<br />
Saleem</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Amit</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7735</link>
		<dc:creator>Amit</dc:creator>
		<pubDate>Sat, 06 Feb 2010 09:31:44 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7735</guid>
		<description>Vinod,

As a thumb rule, set SGA_TARGET to 256mb * Number of  CPU&#039;s i.e 1024 M in your environment.
Can also set shared_pool_size to 256M so that you do not see reloads/invalidations. May be before touching these values, you can look at hard parses or reloads/invalidations in V$librarycache or your statspack/awr reports.

Regards
Amit</description>
		<content:encoded><![CDATA[<p>Vinod,</p>
<p>As a thumb rule, set SGA_TARGET to 256mb * Number of  CPU&#8217;s i.e 1024 M in your environment.<br />
Can also set shared_pool_size to 256M so that you do not see reloads/invalidations. May be before touching these values, you can look at hard parses or reloads/invalidations in V$librarycache or your statspack/awr reports.</p>
<p>Regards<br />
Amit</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Vinod Sharma</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7734</link>
		<dc:creator>Vinod Sharma</dc:creator>
		<pubDate>Fri, 05 Feb 2010 08:31:37 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7734</guid>
		<description>HI Amit,

Thanks for your response. I just wanted you to check the variables defined like sga etc. If this is OK then I will certainly log an SR for resolution.

Regards
Vinod</description>
		<content:encoded><![CDATA[<p>HI Amit,</p>
<p>Thanks for your response. I just wanted you to check the variables defined like sga etc. If this is OK then I will certainly log an SR for resolution.</p>
<p>Regards<br />
Vinod</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Amit</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7732</link>
		<dc:creator>Amit</dc:creator>
		<pubDate>Fri, 05 Feb 2010 07:21:58 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7732</guid>
		<description>Hi Vinod,

I think instead of looking at alert log, you should try generating AWR/Statspack report for 30-60 mins and try to see what is consuming time in database. Also if any specific session is slow, you can trace it with 10046 event.
You can also log a SR for same and Oracle specialists can assist you in diagnosing and resolving the issue.

Regards
Amit</description>
		<content:encoded><![CDATA[<p>Hi Vinod,</p>
<p>I think instead of looking at alert log, you should try generating AWR/Statspack report for 30-60 mins and try to see what is consuming time in database. Also if any specific session is slow, you can trace it with 10046 event.<br />
You can also log a SR for same and Oracle specialists can assist you in diagnosing and resolving the issue.</p>
<p>Regards<br />
Amit</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Vinod Sharma</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7731</link>
		<dc:creator>Vinod Sharma</dc:creator>
		<pubDate>Fri, 05 Feb 2010 04:39:27 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7731</guid>
		<description>Hi Amit,
Please find below details of my Oracle Instance 10g:

Windows Server 2003 Version V5.2 Service Pack 1
CPU                 : 4 - type 586, 2 Physical Cores
Process Affinity    : 0x00000000
Memory (Avail/Total): Ph:3671M/4094M, Ph+PgF:5646M/5971M, VA:1941M/2047M
Fri Feb 05 09:32:08 2010
Starting ORACLE instance (normal)
Fri Feb 05 09:32:09 2010
Specified value of sga_max_size is too small, bumping to 612368384
LICENSE_MAX_SESSION = 0
LICENSE_SESSIONS_WARNING = 0
Picked latch-free SCN scheme 2
Using LOG_ARCHIVE_DEST_10 parameter default value as USE_DB_RECOVERY_FILE_DEST
Autotune of undo retention is turned on. 
IMODE=BR
ILAT =18
LICENSE_MAX_USERS = 500
SYS auditing is disabled
ksdpec: called for event 13740 prior to event group initialization
Starting up ORACLE RDBMS Version: 10.2.0.1.0.
System parameters with non-default values:
  processes                = 150
  resource_limit           = TRUE
  sga_max_size             = 612368384
  __shared_pool_size       = 121634816
  __large_pool_size        = 50331648
  __java_pool_size         = 8388608
  __streams_pool_size      = 0
  spfile                   = F:\ORACLE\PRODUCT\10.2.0\DB_1\DBS\SPFILEORCL.ORA
  sga_target               = 612368384
  control_files            = F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\CONTROL01.CTL, F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\CONTROL02.CTL, F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\CONTROL03.CTL
  db_block_size            = 8192
  __db_cache_size          = 423624704
  compatible               = 10.2.0.1.0
  db_file_multiblock_read_count= 16
  db_recovery_file_dest    = F:\oracle\product\10.2.0/flash_recovery_area
  db_recovery_file_dest_size= 2147483648
  undo_management          = AUTO
  undo_tablespace          = UNDOTBS1
  remote_login_passwordfile= EXCLUSIVE
  license_max_users        = 500
  db_domain                = 
  dispatchers              = (protocol=TCP)
  shared_servers           = 10
  job_queue_processes      = 10
  audit_file_dest          = F:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCL\ADUMP
  background_dump_dest     = F:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCL\BDUMP
  user_dump_dest           = F:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCL\UDUMP
  core_dump_dest           = F:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCL\CDUMP
  db_name                  = orcl
  open_cursors             = 300
  pga_aggregate_target     = 203423744
PMON started with pid=2, OS id=1100
MMAN started with pid=4, OS id=1036
PSP0 started with pid=3, OS id=296
DBW0 started with pid=5, OS id=1644
LGWR started with pid=6, OS id=1648
CKPT started with pid=7, OS id=1608
SMON started with pid=8, OS id=1588
RECO started with pid=9, OS id=1592
CJQ0 started with pid=10, OS id=1892
MMON started with pid=11, OS id=1896
MMNL started with pid=12, OS id=1956
Fri Feb 05 09:32:12 2010
starting up 1 dispatcher(s) for network address &#039;(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))&#039;...
starting up 10 shared server(s) ...
Fri Feb 05 09:32:14 2010
alter database mount exclusive
Fri Feb 05 09:32:18 2010
Setting recovery target incarnation to 2
Fri Feb 05 09:32:19 2010
Successful mount of redo thread 1, with mount id 1237934366
Fri Feb 05 09:32:19 2010
Database mounted in Exclusive Mode
Completed: alter database mount exclusive
Fri Feb 05 09:32:19 2010
alter database open
Fri Feb 05 09:32:19 2010
Beginning crash recovery of 1 threads
 parallel recovery started with 3 processes
Fri Feb 05 09:32:20 2010
Started redo scan
Fri Feb 05 09:32:20 2010
Completed redo scan
 403 redo blocks read, 113 data blocks need recovery
Fri Feb 05 09:32:20 2010
Started redo application at
 Thread 1: logseq 639, block 3015
Fri Feb 05 09:32:21 2010
Recovery of Online Redo Log: Thread 1 Group 2 Seq 639 Reading mem 0
  Mem# 0 errs 0: F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO02.LOG
Fri Feb 05 09:32:21 2010
Completed redo application
Fri Feb 05 09:32:21 2010
Completed crash recovery at
 Thread 1: logseq 639, block 3418, scn 44383502
 113 data blocks read, 113 data blocks written, 403 redo blocks read
Fri Feb 05 09:32:22 2010
Thread 1 advanced to log sequence 640
Thread 1 opened at log sequence 640
  Current log# 3 seq# 640 mem# 0: F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO03.LOG
Successful open of redo thread 1
Fri Feb 05 09:32:22 2010
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set
Fri Feb 05 09:32:22 2010
SMON: enabling cache recovery
Fri Feb 05 09:32:23 2010
Successfully onlined Undo Tablespace 1.
Fri Feb 05 09:32:23 2010
SMON: enabling tx recovery
Fri Feb 05 09:32:24 2010
Database Characterset is WE8MSWIN1252
replication_dependency_tracking turned off (no async multimaster replication found)
Starting background process QMNC
QMNC started with pid=28, OS id=3052
Fri Feb 05 09:32:30 2010
Completed: alter database open
Fri Feb 05 09:32:30 2010
db_recovery_file_dest_size of 2048 MB is 0.00% used. This is a
user-specified limit on the amount of space that will be used by this
database for recovery-related files, and does not reflect the amount of
space available in the underlying filesystem or ASM diskgroup.


I am facing a lot of problems with regards to performance. The goes dead slow. Kindly suggest the changes to be done.

Thanks &amp; Regards
Vinod</description>
		<content:encoded><![CDATA[<p>Hi Amit,<br />
Please find below details of my Oracle Instance 10g:</p>
<p>Windows Server 2003 Version V5.2 Service Pack 1<br />
CPU                 : 4 &#8211; type 586, 2 Physical Cores<br />
Process Affinity    : 0&#215;00000000<br />
Memory (Avail/Total): Ph:3671M/4094M, Ph+PgF:5646M/5971M, VA:1941M/2047M<br />
Fri Feb 05 09:32:08 2010<br />
Starting ORACLE instance (normal)<br />
Fri Feb 05 09:32:09 2010<br />
Specified value of sga_max_size is too small, bumping to 612368384<br />
LICENSE_MAX_SESSION = 0<br />
LICENSE_SESSIONS_WARNING = 0<br />
Picked latch-free SCN scheme 2<br />
Using LOG_ARCHIVE_DEST_10 parameter default value as USE_DB_RECOVERY_FILE_DEST<br />
Autotune of undo retention is turned on.<br />
IMODE=BR<br />
ILAT =18<br />
LICENSE_MAX_USERS = 500<br />
SYS auditing is disabled<br />
ksdpec: called for event 13740 prior to event group initialization<br />
Starting up ORACLE RDBMS Version: 10.2.0.1.0.<br />
System parameters with non-default values:<br />
  processes                = 150<br />
  resource_limit           = TRUE<br />
  sga_max_size             = 612368384<br />
  __shared_pool_size       = 121634816<br />
  __large_pool_size        = 50331648<br />
  __java_pool_size         = 8388608<br />
  __streams_pool_size      = 0<br />
  spfile                   = F:\ORACLE\PRODUCT\10.2.0\DB_1\DBS\SPFILEORCL.ORA<br />
  sga_target               = 612368384<br />
  control_files            = F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\CONTROL01.CTL, F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\CONTROL02.CTL, F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\CONTROL03.CTL<br />
  db_block_size            = 8192<br />
  __db_cache_size          = 423624704<br />
  compatible               = 10.2.0.1.0<br />
  db_file_multiblock_read_count= 16<br />
  db_recovery_file_dest    = F:\oracle\product\10.2.0/flash_recovery_area<br />
  db_recovery_file_dest_size= 2147483648<br />
  undo_management          = AUTO<br />
  undo_tablespace          = UNDOTBS1<br />
  remote_login_passwordfile= EXCLUSIVE<br />
  license_max_users        = 500<br />
  db_domain                =<br />
  dispatchers              = (protocol=TCP)<br />
  shared_servers           = 10<br />
  job_queue_processes      = 10<br />
  audit_file_dest          = F:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCL\ADUMP<br />
  background_dump_dest     = F:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCL\BDUMP<br />
  user_dump_dest           = F:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCL\UDUMP<br />
  core_dump_dest           = F:\ORACLE\PRODUCT\10.2.0\ADMIN\ORCL\CDUMP<br />
  db_name                  = orcl<br />
  open_cursors             = 300<br />
  pga_aggregate_target     = 203423744<br />
PMON started with pid=2, OS id=1100<br />
MMAN started with pid=4, OS id=1036<br />
PSP0 started with pid=3, OS id=296<br />
DBW0 started with pid=5, OS id=1644<br />
LGWR started with pid=6, OS id=1648<br />
CKPT started with pid=7, OS id=1608<br />
SMON started with pid=8, OS id=1588<br />
RECO started with pid=9, OS id=1592<br />
CJQ0 started with pid=10, OS id=1892<br />
MMON started with pid=11, OS id=1896<br />
MMNL started with pid=12, OS id=1956<br />
Fri Feb 05 09:32:12 2010<br />
starting up 1 dispatcher(s) for network address &#8216;(ADDRESS=(PARTIAL=YES)(PROTOCOL=TCP))&#8217;&#8230;<br />
starting up 10 shared server(s) &#8230;<br />
Fri Feb 05 09:32:14 2010<br />
alter database mount exclusive<br />
Fri Feb 05 09:32:18 2010<br />
Setting recovery target incarnation to 2<br />
Fri Feb 05 09:32:19 2010<br />
Successful mount of redo thread 1, with mount id 1237934366<br />
Fri Feb 05 09:32:19 2010<br />
Database mounted in Exclusive Mode<br />
Completed: alter database mount exclusive<br />
Fri Feb 05 09:32:19 2010<br />
alter database open<br />
Fri Feb 05 09:32:19 2010<br />
Beginning crash recovery of 1 threads<br />
 parallel recovery started with 3 processes<br />
Fri Feb 05 09:32:20 2010<br />
Started redo scan<br />
Fri Feb 05 09:32:20 2010<br />
Completed redo scan<br />
 403 redo blocks read, 113 data blocks need recovery<br />
Fri Feb 05 09:32:20 2010<br />
Started redo application at<br />
 Thread 1: logseq 639, block 3015<br />
Fri Feb 05 09:32:21 2010<br />
Recovery of Online Redo Log: Thread 1 Group 2 Seq 639 Reading mem 0<br />
  Mem# 0 errs 0: F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO02.LOG<br />
Fri Feb 05 09:32:21 2010<br />
Completed redo application<br />
Fri Feb 05 09:32:21 2010<br />
Completed crash recovery at<br />
 Thread 1: logseq 639, block 3418, scn 44383502<br />
 113 data blocks read, 113 data blocks written, 403 redo blocks read<br />
Fri Feb 05 09:32:22 2010<br />
Thread 1 advanced to log sequence 640<br />
Thread 1 opened at log sequence 640<br />
  Current log# 3 seq# 640 mem# 0: F:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL\REDO03.LOG<br />
Successful open of redo thread 1<br />
Fri Feb 05 09:32:22 2010<br />
MTTR advisory is disabled because FAST_START_MTTR_TARGET is not set<br />
Fri Feb 05 09:32:22 2010<br />
SMON: enabling cache recovery<br />
Fri Feb 05 09:32:23 2010<br />
Successfully onlined Undo Tablespace 1.<br />
Fri Feb 05 09:32:23 2010<br />
SMON: enabling tx recovery<br />
Fri Feb 05 09:32:24 2010<br />
Database Characterset is WE8MSWIN1252<br />
replication_dependency_tracking turned off (no async multimaster replication found)<br />
Starting background process QMNC<br />
QMNC started with pid=28, OS id=3052<br />
Fri Feb 05 09:32:30 2010<br />
Completed: alter database open<br />
Fri Feb 05 09:32:30 2010<br />
db_recovery_file_dest_size of 2048 MB is 0.00% used. This is a<br />
user-specified limit on the amount of space that will be used by this<br />
database for recovery-related files, and does not reflect the amount of<br />
space available in the underlying filesystem or ASM diskgroup.</p>
<p>I am facing a lot of problems with regards to performance. The goes dead slow. Kindly suggest the changes to be done.</p>
<p>Thanks &amp; Regards<br />
Vinod</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Amit</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7727</link>
		<dc:creator>Amit</dc:creator>
		<pubDate>Sat, 30 Jan 2010 17:38:27 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7727</guid>
		<description>Try using /3Gb switch if you have ram &gt;3 Gb. Also you would like to re-read the article as it applies to your case :)</description>
		<content:encoded><![CDATA[<p>Try using /3Gb switch if you have ram >3 Gb. Also you would like to re-read the article as it applies to your case <img src='http://askdba.org/weblog/wp-includes/images/smilies/icon_smile.gif' alt=':)' class='wp-smiley' /> </p>
]]></content:encoded>
	</item>
	<item>
		<title>By: abhishek</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7724</link>
		<dc:creator>abhishek</dc:creator>
		<pubDate>Sat, 30 Jan 2010 10:59:36 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7724</guid>
		<description>hi everyone,

           my oracle 9i is install on window server 2003 standard version.Due to this oracle is not using more than 2 gb ram...please suggest</description>
		<content:encoded><![CDATA[<p>hi everyone,</p>
<p>           my oracle 9i is install on window server 2003 standard version.Due to this oracle is not using more than 2 gb ram&#8230;please suggest</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Amit</title>
		<link>http://askdba.org/weblog/2008/05/awe-what-is-it-and-how-can-i-use-it/#comment-7679</link>
		<dc:creator>Amit</dc:creator>
		<pubDate>Sun, 15 Nov 2009 05:08:18 +0000</pubDate>
		<guid isPermaLink="false">http://askoracledba.wordpress.com/?p=41#comment-7679</guid>
		<description>Dean,

You had mentioned that you are running Windows Server 2003 (Standard Edition) which does not provide functionality of  enabling /PAE switch.

Secondly to use you need to se /PAE switch explicitly (not sure what NOEXECUTE function does). In face /NOEXECUTE option is present by default. 

As mentioned earlier , you are able to start your database because you are not crossing 2.7 Gb limit. To prove it, lets try this

a) Remove sga_max_size and sga_target
b) set USE_INDIRECT_DATA_BUFFERS =true
c) Set buffer cache to 3G i.e set db_block_buffers=393216 (assuming you have db_block_size=8k) . Does your oracle instance start?</description>
		<content:encoded><![CDATA[<p>Dean,</p>
<p>You had mentioned that you are running Windows Server 2003 (Standard Edition) which does not provide functionality of  enabling /PAE switch.</p>
<p>Secondly to use you need to se /PAE switch explicitly (not sure what NOEXECUTE function does). In face /NOEXECUTE option is present by default. </p>
<p>As mentioned earlier , you are able to start your database because you are not crossing 2.7 Gb limit. To prove it, lets try this</p>
<p>a) Remove sga_max_size and sga_target<br />
b) set USE_INDIRECT_DATA_BUFFERS =true<br />
c) Set buffer cache to 3G i.e set db_block_buffers=393216 (assuming you have db_block_size=8k) . Does your oracle instance start?</p>
]]></content:encoded>
	</item>
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