When bulk loading to Sybase and DB2 targets, the Integration Service ignores the commit interval you define in the session properties and commits data when the writer block is full.
When bulk loading to Microsoft SQL Server and Oracle targets, the Integration Service commits data at each commit interval. Also, Microsoft SQL Server and Oracle start a new bulk load transaction after each commit.
When bulk loading to Microsoft SQL Server or Oracle targets, define a large commit interval to reduce the number of bulk load transactions and increase performance.