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Full Discussion: AIX 7.1 high page faults
Operating Systems AIX AIX 7.1 high page faults Post 302735701 by -=XrAy=- on Monday 26th of November 2012 03:34:59 AM
Old 11-26-2012
just an idea...

Oracle Architecture and Tuning on AIX (v 2.30).pdf

Code:
Starting with Oracle 11.2.0.2 when AIX 6.1 or AIX 7.1 is detected, Oracle will use O_CIOR option to open a file on JFS2. 
Therefore you should no longer mount the filesystems with mount option –o cio.

When Oracle is open a file in cio-mode your system will not cache this data.
Maybe you need do define a greater SGA to reach a good cache hit:

Code:
SGA_MAX_SIZE
Starting with Oracle 9i, the Oracle SGA size can be dynamically changed. It means the DBA just 
needs to set the maximum amount of memory available to Oracle (SGA_MAX_SIZE) and the initial 
values of the different pools: DB_CACHE_SIZE, SHARED_POOL_SIZE, LARGE_POOL_SIZE etc… 
The size of these individual pools can then be increased or decreased dynamically using the ALTER SYSTEM 
command, provided the total amount of memory used by the pools does not exceed SGA_MAX_SIZE. If LOCK_SGA = TRUE, 
his parameter defines the amount of memory Oracle allocates at DB startup in “one piece”! Also, 
SGA_TARGET is ignored for the purpose of memory allocation in this case.

PS: Our DB-Mashine runs "normal" with 30.000 Page Faults/sec

Last edited by -=XrAy=-; 11-26-2012 at 04:49 AM..
 

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DBIx::Class::Storage::DBI::Oracle::WhereJoins(3pm)	User Contributed Perl Documentation	DBIx::Class::Storage::DBI::Oracle::WhereJoins(3pm)

NAME
DBIx::Class::Storage::DBI::Oracle::WhereJoins - Oracle joins in WHERE syntax support (instead of ANSI). PURPOSE
This module is used with Oracle < 9.0 due to lack of support for standard ANSI join syntax. SYNOPSIS
DBIx::Class should automagically detect Oracle and use this module with no work from you. DESCRIPTION
This class implements Oracle's WhereJoin support. Instead of: SELECT x FROM y JOIN z ON y.id = z.id It will write: SELECT x FROM y, z WHERE y.id = z.id It should properly support left joins, and right joins. Full outer joins are not possible due to the fact that Oracle requires the entire query be written to union the results of a left and right join, and by the time this module is called to create the where query and table definition part of the SQL query, it's already too late. METHODS
See DBIx::Class::SQLMaker::OracleJoins for implementation details. BUGS
Does not support full outer joins. Probably lots more. SEE ALSO
DBIx::Class::SQLMaker DBIx::Class::SQLMaker::OracleJoins DBIx::Class::Storage::DBI::Oracle::Generic DBIx::Class AUTHOR
Justin Wheeler "<jwheeler@datademons.com>" CONTRIBUTORS
David Jack Olrik "<djo@cpan.org>" LICENSE
This module is licensed under the same terms as Perl itself. perl v5.14.2 2011-05-10 DBIx::Class::Storage::DBI::Oracle::WhereJoins(3pm)
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