Re: network vector IO

> What this feature is? How to turn it on? Off?

Try changing _use_zero_copy_io to false and bounce the database. The 
description of this parameter is "Should network vector IO interface be used 
for data transfer".

If you use JDBC, there's a documented way to turn it off with

OracleConnection.CONNECTION_PROPERTY_THIN_NET_USE_ZERO_COPY_IO

It's in the "Working with LOBs and BFILEs" chapter but I doubt it's limited to 
that.
Ref: http://download.oracle.com/docs/cd/E11882_01/java.112/e10589/oralob.htm

Yong Huang


      
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