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Re: db_file_mutliblock_read_count and physical IO

From: Darrell Landrum <darrell_at_landrum.com>
Date: Thu, 19 Aug 2004 21:13:39 -0500
Message-ID: <001f01c4865b$4f414500$6401a8c0@otherrealm>


I'm now quite glad I continued to follow this thread as I didn't know that about parallel query and direct IO. I have always been quick to call that sorting.

> I find that the most confusion is caused by "direct read/write"
> events because they're caused not only by sorts but also by
> PQ processes which read directly from the file into PGA, bypassing
> the buffer cache.



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Received on Thu Aug 19 2004 - 21:09:29 CDT

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