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The full version of this post can be found here., http://sqlblogcasts.com/blogs/simons/SSIS Pipeline performance changes in Katmai
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The SSIS pipeline is being changed in Katmai to allow
more parallel processing. For any multi processor machine this should result in
a performance improvement.
Essentially each arrow in your data flow can now have an active buffer, where
as in SQL 2005 you only have 1 active buffer from the source to the next
asynchronous component. Many people put in a UNION ALL component (which is
asynchronous) to allow more buffers to be used.
... To read the complete version of this post go here, http://sqlblogcasts.com/blogs/simons/SSIS Pipeline performance changes in Katmai