RE: single session I/O bandwidth
- From: Iggy Fernandez <iggy_fernandez@xxxxxxxxxxx>
- To: <exriscer@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Tue, 12 Mar 2013 00:05:05 -0700
Why is the basis of the assumption that a single Oracle thread has more
capacity that that? Trace one of the threads for a while using "strace -c" to
produce a summary and you will see how time is spent within the thread.
You can also check a summary trace of a "dd of=/dev/null" command. Chances are
you will see higher throughput but dd much less processing than an Oracle
thread.
Kindest regards,
Iggy
> What is the mechanism which limits a single session cannot have more than>
> 30, 40MB throughput? Some sort of SAN QOS?
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