http://www.oraclealchemist.com/oracle/strange-behavior-with-memory_target/ Steve Karam's Oracle Blog Tue, 24 Jan 2012 01:33:44 +0000 hourly 1 http://wordpress.org/?v=3.3.1 http://www.oraclealchemist.com/oracle/strange-behavior-with-memory_target/comment-page-1/#comment-44500 Viral Patel Mon, 05 Dec 2011 17:11:00 +0000 http://www.oraclealchemist.com/?p=178#comment-44500 Steve, thanks for your post. I also second your result on memory target does not work as expected. I have just read this article but I also ran several tests just like you did regarding sga and pga. the result was totally unexpected. pga was taking most of the memory than sga and whatever was available for sga, shared pool took almost 70% of sga, leaving small amount of memory for db cache causing high io. I finally turned off memory target and set automatic sga(10g feature). So far it has been running fine. This test were done on Oracle 11.1.0.7 on HPUX. Steve, thanks for your post. I also second your result on memory target does not work as expected. I have just read this article but I also ran several tests just like you did regarding sga and pga. the result was totally unexpected. pga was taking most of the memory than sga and whatever was available for sga, shared pool took almost 70% of sga, leaving small amount of memory for db cache causing high io. I finally turned off memory target and set automatic sga(10g feature). So far it has been running fine. This test were done on Oracle 11.1.0.7 on HPUX.

]]> http://www.oraclealchemist.com/oracle/strange-behavior-with-memory_target/comment-page-1/#comment-44389 Log Buffer #200, A Carnival of the Vanities for DBAs | The Pythian Blog Sat, 21 Aug 2010 22:27:38 +0000 http://www.oraclealchemist.com/?p=178#comment-44389 [...] Steve Karam, the Oracle Alchemist reports strange behaviour with MEMORY_TARGET. [...] [...] Steve Karam, the Oracle Alchemist reports strange behaviour with MEMORY_TARGET. [...]

]]> http://www.oraclealchemist.com/oracle/strange-behavior-with-memory_target/comment-page-1/#comment-44248 an oracle dba Fri, 21 Aug 2009 03:47:15 +0000 http://www.oraclealchemist.com/?p=178#comment-44248 is it possible those __size play a role? much agreed the practice in your "Update 1", set the sga_target higher first. is it possible those __size play a role?
much agreed the practice in your “Update 1″, set the sga_target higher first.

]]> http://www.oraclealchemist.com/oracle/strange-behavior-with-memory_target/comment-page-1/#comment-44230 Blogroll Report 07/08/2009 – 14/08/2009 « Coskan’s Approach to Oracle Fri, 14 Aug 2009 17:10:47 +0000 http://www.oraclealchemist.com/?p=178#comment-44230 [...] Steven Karam – Strange Behavior with MEMORY_TARGET [...] [...] Steven Karam – Strange Behavior with MEMORY_TARGET [...]

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