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Special Forums Hardware Filesystems, Disks and Memory iostat output vs TPC output (array layer) Post 302517481 by arizah on Wednesday 27th of April 2011 01:27:53 AM
Old 04-27-2011
Thanks for the lines. Day by day becomes trickier. We are moving from IBM DS800 storage to a new Hitachi Storage and it looks like performance is a lot better. I suppose bigger cache at the Storage subsystem make a big difference but then you may face other bottlenecks like network latency or fiber channels congestions. Also in the near futture we will be migrating to a new Power7 server where most of these bottleneck suppose to disapear. Thanks again.
 

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DBIx::Class::Storage::DBI::mysql(3)			User Contributed Perl Documentation		       DBIx::Class::Storage::DBI::mysql(3)

NAME
DBIx::Class::Storage::DBI::mysql - Storage::DBI class implementing MySQL specifics SYNOPSIS
Storage::DBI autodetects the underlying MySQL database, and re-blesses the $storage object into this class. my $schema = MyDb::Schema->connect( $dsn, $user, $pass, { on_connect_call => 'set_strict_mode' } ); DESCRIPTION
This class implements MySQL specific bits of DBIx::Class::Storage::DBI, like AutoIncrement column support and savepoints. Also it augments the SQL maker to support the MySQL-specific "STRAIGHT_JOIN" join type, which you can use by specifying "join_type => 'straight'" in the relationship attributes It also provides a one-stop on-connect macro "set_strict_mode" which sets session variables such that MySQL behaves more predictably as far as the SQL standard is concerned. STORAGE OPTIONS
set_strict_mode Enables session-wide strict options upon connecting. Equivalent to: ->connect ( ... , { on_connect_do => [ q|SET SQL_MODE = CONCAT('ANSI,TRADITIONAL,ONLY_FULL_GROUP_BY,', @@sql_mode)|, q|SET SQL_AUTO_IS_NULL = 0|, ] }); AUTHORS
See "CONTRIBUTORS" in DBIx::Class LICENSE
You may distribute this code under the same terms as Perl itself. perl v5.16.2 2012-08-16 DBIx::Class::Storage::DBI::mysql(3)
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